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Pediatr Blood Cancer 2006;46:773–779 Accuracy of Assessment of Distress, Anxiety, and Depression by Physicians and Nurses in Adolescents Recently Diagnosed With Cancer Mariann Hedstro ¨m, RN, PhD, 1 * Anders Kreuger, MD, PhD, 2 Gustaf Ljungman, MD, PhD, 2 Peter Nygren, MD, PhD, 3 and Louise von Essen, PhD 1 INTRODUCTION Physicians and nurses are involved in medical treatment, decision-making, and prioritizing care and use of health care resources [1]. In pediatric care, it is thus imperative to find out whether staff’s assessments of children’s health status agree with the children’s assessments of their own health status. When child-staff ratings of children’s health status have been investigated, the focus has often been on associations. In a study by Worchel et al. [2], children with cancer, their parents, and nurses, rated the children’s levels of depression. Neither child–parent nor child–nurse ratings were asso- ciated, however, parent–nurse ratings were. Phipps et al. [3] investigated the health related quality of life of children undergoing bone marrow transplantation according to the children, their parents, and nurses. Child – parent ratings were more associated than child–nurse and parent–nurse ratings. Correlations were higher for somatic distress and activity than for mood disturbances, compliance, and quality of interactions. Demyttenaere et al. [4] investigated children’s pain after surgery and showed that child –mother and child – nurse ratings were not correlated, although mother–nurse ratings were. Some investigators have investigated potential differences between child and staff ratings of children’s health status. Billson and Walker [5] investigated the health status of survivors of childhood cancer according to the survivors, their parents, and physicians. The physicians identified fewer deficits than children and parents. Le Gale `s et al. [6], investigated the health status among children on or off treatment for brain tumors, according to the children, their parents, and physicians. The parents underestimated the children’s health status while physicians overestimated it. On the basis of the few studies referred to above, it may be speculated whether (a) parent–staff ratings of children’s function and symptom are associated with each other but not with the children’s ratings and (b) staff tend to underestimate problems compared to children’s ratings. If the first specu- lation holds true, and as parents often act as their child’s spokespeople and communicate the child’s needs to medical staff [7,8], there are implications for more direct child – staff communication. This seems particularly important for adoles- cents as Chang and Yeh [9] recently reported that parent-proxy reports on adolescent health status provided significantly different information than adolescent self-reports among Background. As staff members prioritize medical resources for patients, it is imperative to find out whether their assessments of patients’ health status agree with patients’ assessments. The degree to which physicians and nurses can identify the distress, anxiety, and depression experienced by adolescents recently diagnosed with cancer was examined here. Procedure. Adolescents undergoing chemotherapy (13–19 years, n ¼ 53), physicians (n ¼ 48), and nurses (n ¼ 53) completed a structured telephone interview, 4–8 weeks after diagnosis or relapse, investigating disease and treatment-related distress, anxiety, and depression. Results. The accuracy of staff ratings of physical distress could be considered acceptable. However, problems of a psychosocial nature, which were frequently overestimated, were difficult for staff to identify. Staff underestimated the distress caused by mucositis and worry about missing school more than they overestimated distress. These aspects were some of the most prevalent and overall worst according to the adolescents. Both physicians and nurses overestimated levels of anxiety and depression. Nurses tended to show higher sensitivity than physicians for distress related to psychosocial aspects of distress, while physicians tended to show higher accuracy than nurses for physical distress. Conclusions. Staff was reasonably accurate at identifying physical distress in adolescents recently diagnosed with cancer whereas psychosocial problems were generally poorly identified. Thus, the use of staff ratings as a ‘‘test’’ to guide specific support seems problematic. Considering that the accuracy of staff ratings outside a research study is probably lower, identification of and action taken on adolescent problems in relation to cancer diagnosis and treatment need to rely on direct communication. Pediatr Blood Cancer 2006;46:773–779. ß 2005 Wiley-Liss, Inc. Key words: adolescents; anxiety; cancer; depression; distress; staff assessments ß 2005 Wiley-Liss, Inc. DOI 10.1002/pbc.20693 —————— 1 Department of Public Health and Caring Sciences, Section of Caring Sciences, Uppsala University, Uppsala, Sweden; 2 Department of Women’s and Children’s Health, Unit for Pediatric Hematology and Oncology, University Children’s Hospital, Uppsala, Sweden; 3 Department of Oncology, Radiology and Clinical Immunology, University Hospital, Uppsala, Sweden Grant sponsor: Swedish Children’s Cancer Foundation; Grant sponsor: Swedish Cancer Society. *Correspondence to: Mariann Hedstro ¨ m, Department of Public Health and Caring Sciences, Section of Caring Sciences, Uppsala University, Dag Hammarskio ¨lds v.10 B, Uppsala Science Park, S-751 83 Uppsala, Sweden. E-mail: [email protected] Received 10 February 2005; Accepted 10 October 2005

Accuracy of assessment of distress, anxiety, and depression by physicians and nurses in adolescents recently diagnosed with cancer

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Pediatr Blood Cancer 2006;46:773–779

Accuracy of Assessment of Distress, Anxiety, and Depressionby Physicians and Nurses in Adolescents Recently Diagnosed

With Cancer

Mariann Hedstrom, RN, PhD,1* Anders Kreuger, MD, PhD,2 Gustaf Ljungman, MD, PhD,2

Peter Nygren, MD, PhD,3 and Louise von Essen, PhD1

INTRODUCTION

Physicians and nurses are involved in medical treatment,

decision-making, and prioritizing care and use of health care

resources [1]. In pediatric care, it is thus imperative to findout

whether staff’s assessments of children’s health status agree

with the children’s assessments of their own health status.

When child-staff ratings of children’s health status have

been investigated, the focus has often been on associations. In

a study by Worchel et al. [2], children with cancer, their

parents, and nurses, rated the children’s levels of depression.

Neither child–parent nor child–nurse ratings were asso-

ciated, however, parent–nurse ratings were. Phipps et al. [3]

investigated the health related quality of life of children

undergoing bone marrow transplantation according to the

children, their parents, and nurses. Child–parent ratingswere

more associated than child–nurse and parent–nurse ratings.

Correlations were higher for somatic distress and activity

than for mood disturbances, compliance, and quality of

interactions. Demyttenaere et al. [4] investigated children’s

pain after surgery and showed that child–mother and child–

nurse ratings were not correlated, although mother–nurse

ratings were. Some investigators have investigated potential

differences between child and staff ratings of children’s

health status. Billson and Walker [5] investigated the health

status of survivors of childhood cancer according to the

survivors, their parents, and physicians. The physicians

identified fewer deficits than children and parents. Le Gales

et al. [6], investigated the health status among children on or

off treatment for brain tumors, according to the children, their

parents, and physicians. The parents underestimated the

children’s health status while physicians overestimated it. On

the basis of the few studies referred to above, it may be

speculated whether (a) parent–staff ratings of children’s

function and symptom are associated with each other but not

with the children’s ratings and (b) staff tend to underestimate

problems compared to children’s ratings. If the first specu-

lation holds true, and as parents often act as their child’s

spokespeople and communicate the child’s needs to medical

staff [7,8], there are implications for more direct child–staff

communication. This seems particularly important for adoles-

cents as Chang and Yeh [9] recently reported that parent-proxy

reports on adolescent health status provided significantly

different information than adolescent self-reports among

Background. As staff members prioritize medical resources forpatients, it is imperative to find out whether their assessments ofpatients’ health status agree with patients’ assessments. The degree towhich physicians and nurses can identify the distress, anxiety, anddepression experienced by adolescents recently diagnosed withcancer was examined here. Procedure. Adolescents undergoingchemotherapy (13–19 years, n¼53), physicians (n¼ 48), and nurses(n¼53) completed a structured telephone interview, 4–8 weeksafter diagnosis or relapse, investigating disease and treatment-relateddistress, anxiety, and depression. Results. The accuracy of staffratings of physical distress could be considered acceptable.However, problems of a psychosocial nature, which were frequentlyoverestimated, were difficult for staff to identify. Staff underestimatedthe distress caused by mucositis and worry about missing schoolmore than they overestimated distress. These aspects were some of

the most prevalent and overall worst according to the adolescents.Both physicians and nurses overestimated levels of anxiety anddepression. Nurses tended to show higher sensitivity than physiciansfor distress related to psychosocial aspects of distress, whilephysicians tended to show higher accuracy than nurses for physicaldistress. Conclusions. Staff was reasonably accurate at identifyingphysical distress in adolescents recently diagnosed with cancerwhereas psychosocial problems were generally poorly identified.Thus, the use of staff ratings as a ‘‘test’’ to guide specific supportseems problematic. Considering that the accuracy of staff ratingsoutside a research study is probably lower, identification of andaction taken on adolescent problems in relation to cancer diagnosisand treatment need to rely on direct communication. Pediatr BloodCancer 2006;46:773–779. � 2005 Wiley-Liss, Inc.

Key words: adolescents; anxiety; cancer; depression; distress; staff assessments

� 2005 Wiley-Liss, Inc.DOI 10.1002/pbc.20693

——————1Department of Public Health and Caring Sciences, Section of Caring

Sciences, Uppsala University, Uppsala, Sweden; 2Department of

Women’s and Children’s Health, Unit for Pediatric Hematology and

Oncology, University Children’s Hospital, Uppsala, Sweden;3Department of Oncology, Radiology and Clinical Immunology,

University Hospital, Uppsala, Sweden

Grant sponsor: Swedish Children’s Cancer Foundation; Grant sponsor:

Swedish Cancer Society.

*Correspondence to: Mariann Hedstrom, Department of Public Health

and Caring Sciences, Section of Caring Sciences, Uppsala University,

Dag Hammarskiolds v.10 B, Uppsala Science Park, S-751 83 Uppsala,

Sweden. E-mail: [email protected]

Received 10 February 2005; Accepted 10 October 2005

adolescents with cancer. If the last speculation holds true, it

may have serious consequences, as problems not acknowl-

edged may go without sufficient attention and treatment. In

adult care, inadequate pain management has been shown as a

possible consequence of disagreement between patient–

physician ratings of pain intensity in adult cancer patients [10].

The focus of the present study was to examine the degree

to which physicians and nurses can accurately identify the

distress, anxiety, and depression experienced by adolescents

with cancer. In this study, we take the adolescent’s assess-

ments as the point of reference. The aims were to compare

the ratings of physicians and nurses with the ratings of

adolescents, recently diagnosed with cancer. The study

evaluated ratings of the presence and levels of disease and

treatment-related aspects of distress, which aspects of dis-

tress were experienced as the worst for the adolescents as

well as the presence and levels of anxiety and depression.

METHODS

This report presents results based on data collected

4–8 weeks after diagnosis from adolescents, nurses, and

physicians, recruited from three of the six pediatric oncology

centers in Sweden, from February 1999 in Uppsala and from

March 2000 in Lund, and Umea until September 2003.

Participants

Swedish speaking adolescents (13–19 years of age),

diagnosed with a malignancy or relapse (after a minimum of

1 year post treatment), treated with chemotherapy at one of

the centers, and considered emotionally, cognitively, and

physically capable of participating by the project coordinat-

ing nurse or the treating physician at the center where the

adolescent was treated and cared for, were eligible. Of the

97 adolescents diagnosed with cancer and treated with chemo-

therapy, 18 were excluded for the following reasons: 4 spoke

very little Swedish, 7 were considered too physically or

cognitively affected by the disease or a neurological comor-

bidity (5 of whom died shortly after the diagnosis), and 7 were

diagnosed at the pediatric oncology centers, but thereafter

treated and cared for at a local hospital. Of the 79 adolescents

who met the eligibility criteria, 56 agreed to participate. Two

adolescents became too ill before they could be interviewed,

and one could not be found due to administrative failure.

Hence, 67% (53/79) of the eligible adolescents participated,

their characteristics are presented in Table I.

One physician and one nurse/nurse assistant were to be

interviewed for each participating adolescent. Twenty-six

physicians were interviewed concerning 48 adolescents

(5 interviews were not performed as the workload on the ward

did not allow any time for physicians to participate), with a

range of 1–7 interviews per physician (mean 1.8, SD 1.5).

Their mean age was 45 years (range 28–62), 9 were women

and 17 men. The physicians had worked in health care for an

average of 17 years (range 4–35), and with adolescents with

cancer for an average of 8 years (range 2 months–31 years).

Forty-four nurses/nurse assistants were interviewed con-

cerning 53 adolescents, with a range of 1–3 interviews per

nurse/nurse assistant (mean 1.2, SD 0.5). Thirty-six were

registered nurses and 8 were nurse assistants (non-registered

staff with 2 years of education). In the following, nurses and

nurse assistants will be referred to as nurses. The mean age

was 37 years (range 25–59), 38 were women and 6 men. The

nurses had worked in health care for an average of 14 years

(range 1–35) andwith adolescentswith cancer for an average

of 7 years (range 3 months–30 years).

Procedure

Ethical approval was obtained from the local ethics

committees at the faculties of medicine. All eligible

adolescents and their parents received written information

about the study from a coordinating nurse at each center

approximately 3 weeks after diagnosis. After a few days, the

coordinating nurse contacted the adolescent and asked him/

her if he/she was willing to participate, and asked the parents

for consent if the adolescent was �17 years. Thereafter, one

of the nurses and one of the physicians who knew the

adolescents the best, were matched and then interviewed as

close in time to the adolescent interview as possible. Data

was collected by structured telephone interviews 4–8 weeks

after the adolescent’s cancer diagnosis. All adolescents had

started chemotherapy at the time of data collection. The

adolescents received a small present in return for their

participation.

Measures

Presence, levels, and worst aspects of disease and

treatment-related distress. A structured interview-guide,

developed for the study, was used to investigate presence

Pediatr Blood Cancer DOI 10.1002/pbc

TABLE I. Demographic and Clinical Characteristics of theAdolescents (n¼ 53)

Study site

Lund 17

Umea 17

Uppsala 19

Sex

Male 36

Female 17

Age

13–14 28

15–19 25

Diagnosis

CNS-tumor 3

Ewing sarcoma 3

Leukemia 18

Lymphoma 16

Osteosarcoma 8

Other 5

Relapse

No 48

Yes 5

774 Hedstrom et al.

and/or levels of, and worst aspects of distress. The aspects

were identified through semi-structured interviews with

adolescents with cancer and nurses caring for them [11,12].

The aspects were categorized as physical concerns, personal

changes, feelings of alienation and disease, and treatment-

related worries. For 16 aspects, presence and levels were

identified through response alternatives using a six-grade

verbal scale, range ‘‘not at all’’ to ‘‘very much,’’ coded 0–5.

For four aspects presence/absence was identified through a

dichotomized yes/no alternative. Questions referred to the

time since diagnosis. Physicians and nurses answered a staff

version, which included the same items, but with questions

directed to the staff, asking them to reply what they thought

their matched adolescent had experienced since diagnosis.

For all aspects, staff had the possibility of answering ‘‘I don’t

know.’’ Finally, the nurses and physicians were asked to

identify the aspect of distress that had been the worst for the

adolescent since diagnosis. These respondents had the

possibility of reporting more than one aspect.

Presence and levels of anxiety and depression. The

hospital anxiety and depression scale (HADS) [13] was used

to investigate presence and levels of anxiety and depression.

HADS refers to the preceding week and consists of two

subscales, one assessing anxiety (HADS-A, seven items) and

one depression (HADS-D, seven items). Answers are given

on a four-grade verbal scale, coded 0–3. Subscale scores

range from 0 (no distress) to 21 (maximum distress).

Physicians and nurses answered a staff version [14], which

included the same items, but with questions directed to the

staff, asking them to reply as to how they thought their

matched adolescent had felt during the past week. TheHADS

has been found to possess adequate test-retest reliability and

sensitivity for use with adolescents [15], and has been

reported to correctly identify a majority of clinical cases of

psychiatric mood disorders among adolescents with cancer

as identified by a psychiatric evaluation [16].

Background data. Respondents were asked to report

demographic data and the coordinating nurse collected

clinical data on the adolescents from the medical records.

Data Analysis

Adolescent–staff agreement with regard to disease

and treatment-related distress. Prevalence was defined as

‘‘moderately,’’ ‘‘quite a lot,’’ or ‘‘very much’’ answers to

questions with continuous and ‘‘yes’’ answers to questions

with dichotomized response alternatives by adolescents.

Sensitivity was defined as the proportion (%) of staff being

able to detect an aspect as distressing, that is, answering

‘‘moderately,’’ ‘‘quite a lot,’’ or ‘‘very much’’ for continuous

questions, and ‘‘yes’’ to questions with dichotomized

response alternatives, when the adolescents also provided

any of these answers. Specificity was defined as the

proportion (%) of staff being able to detect an aspect as not

distressing, that is, answering ‘‘somewhat,’’ ‘‘just a little,’’ or

‘‘not at all’’ for continuous and ‘‘no’’ to questions with

dichotomized response alternatives when the adolescents

also provided any of these answers. Calculations of

sensitivity and specificity are based on an idea presented by

Brunelli et al. [1]. Overestimation was defined as staff giving

a rating more than one score above and underestimation as a

ratingmore than one score below the rating by the adolescent.

Calculations of over- and underestimation could not be

performed for questions with dichotomized response alter-

natives. Perceptions of worst aspects of distress are reported

with descriptive statistics.

Adolescent–staff agreement with regard to anxiety

and depression. For calculations of prevalence of anxiety

and depression, cut-off points indicating a potential clinical

casewere employed for scores�9 for anxiety (HADS-A) and

�7 for depression (HADS-D), as recommended for use with

adolescents [15]. Sensitivity and specificity were calculated

using these cut-off points. For calculations of correlations,

Pearson product moment correlation coefficients (PPM)

were calculated. For calculations of differences, paired, two-

tailed t-tests were used. Missing values for HADS were

substituted by the mean value of the specific respondent’s

answers to the remaining scale items, provided that six of the

seven items had been answered. This procedure was

performed for nine missing values. If more than one item

per scale was missing, that subscale was treated as missing

data in the prevalence, PPM and t-test calculations. This was

the case for one depression and one anxiety subscale for

adolescents, four depression and four anxiety subscales for

physicians, and one depression and three anxiety subscales

for nurses. Eight physicians and three nurses were not asked

to answer HADS as more than 1 week had elapsed since they

had met the adolescent.

RESULTS

Adolescent–Staff Agreement on the Presence,Levels, and Worst Aspects of Distress

Physicians rated six aspects with a sensitivity and speci-

ficity close to or above 60%: infections, mucositis, nausea,

pain from disease, pain from procedures/treatments, and hair

loss (Table II). Nurses rated five aspects with a sensitivity and

specificity close to or above 60%: infections, mucositis,

nausea, hair loss, round face (related to steroid use), and

weight loss/gain. For most of the remaining aspects, staff

showed a higher sensitivity than specificity. Physicians under-

estimated levels of distress for more adolescents than they

overestimated it with regard tomucositis, worry about missing

school, and missing leisure activities. Nurses underestimated

levels of distressmore than they overestimated itwith regard to

mucositis, worry about missing school, and infections.

Adolescent distress items with a prevalence of >50%

were hair loss, missing leisure activities, weight loss/gain,

fatigue, worry aboutmissing school, andmucositis (Table II).

Two of these aspects were among the three for which nurses

Pediatr Blood Cancer DOI 10.1002/pbc

Distress Among Adolescents With Cancer 775

Pediatr Blood Cancer DOI 10.1002/pbc

TABLEII.Prevalence

ofandAgreem

entBetweenAdolescent(n

¼53),Physician(n

¼48),andNurse(n

¼53)RatingsforAspects

ofDistress

Area

Aspectofdistress

Adolescents

Physicians

Nurses

Prevalence

Sensitivity

Specificity

Overestimationa

Underestimationa

Sensitivity

Specificity

Overestimationb

Underestimationb

Physicalconcerns

Infections

42

59

84

17

15

64

61

12

16

Mucositis

55

60

83

532

59

83

422

Nausea

36

71

77

20

17

79

53

21

9

Painfrom

disease

30

71

79

26

15

44

49

35

10

Painfrom

procedures/

treatm

ents

40

60

57

34

15

62

47

36

16

Personal

changes

Changed

temper

49

60

17

NA

NA

46

46

NA

NA

Fatigue

68

84

35

18

13

80

18

29

6

Hairloss

94

84

67

NA

NA

86

100

NA

NA

Roundface

45

52

80

NA

NA

67

86

NA

NA

Weightloss/gain

87

49

14

NA

NA

76

57

NA

NA

Feelingsofalienation

Experiencinglower

self-esteem

60

67

47

333

78

37

0

Feelingdifferentthan

friends

28

73

23

55

540

21

57

9

Feelingleft-outbyfriends

17

29

39

64

056

251

7

Missingleisure

activities

90

60

20

19

28

100

019

17

Notwantingotherstoseeme

17

11

69

41

844

73

26

13

Disease-and

treatm

ent-relatedworries

Worryaboutbeingleft-out

byfriends

13

050

61

557

41

60

5

Worryaboutchanged

appearance

30

60

36

44

975

38

40

10

Worryaboutpainfrom

procedures/treatm

ents

24

45

43

43

769

38

48

4

Worryaboutmissingschool

57

25

79

18

41

53

39

17

27

Worrynotgettingwell

32

79

21

57

276

17

73

4

Numbersindicate%.NA¼notapplicable.

aNumber

ofrespondentsrange36–47.

bNumber

ofrespondentsrange41–52.

776 Hedstrom et al.

tended to underestimate distress, and three aspects were

among those for which physicians tended to underestimate

distress. Thus, members of staff tend to underestimate

distress caused by some of the aspects that distress most

adolescents. A similar pattern emerges for the worst aspects

of distress according to adolescents. The aspects identified as

the worst are presented in Table III. Respondents report a

variety of aspects as the worst.Worry about not getting well

wasmost oftenmentioned, especially by physicians. The two

aspects for which both nurses and physicians underestimated

distress (Table II) were among the six aspects that

adolescentsmost frequently identified as theworst:mucositis

and worry about missing school (Table III).

Adolescent–Staff Agreement on the Prevalenceand Levels of Anxiety and Depression

Five adolescents (10%) were identified as potential clin-

ical cases for anxiety and 10 (19%) were identified as

potential clinical cases for depression. For anxiety, physician

ratings were more accurate for the presence (75%) than for

the absence (54%) of adolescent self-reported anxiety

whereas nurses were more accurate for the absence (82%)

than for the presence (60%) of adolescent self-reported

anxiety (Table IV). Staff ratings of depression were more

accurate for the absence (60%, 71%) than for the presence

(56%, 50%) of adolescent self-reported depression. There

were statistically significant correlations between staff and

adolescents concerning level of anxiety. However, staff

reported significantly higher levels of anxiety and depression

than did the adolescents (Table IV).

DISCUSSION

As cancer in adolescents is uncommon, consists of a

multitude of diagnoses and is treated in numerousways, itwas

difficult to recruit a homogenous study group. In our study, the

adolescents were heterogeneous in terms of diagnosis, but

relatively homogenous in terms of time since diagnosis, age

group, and treatment. Five of the included adolescents had

relapses. It could be speculated that theywere better known to

the staff than the newly diagnosed adolescents were. Avisual

inspection of a separate data analysis for the relapsed

adolescents does not support this idea. For HADS, a visual

inspection of mean differences showed greater differences

between relapsed adolescents and staff than between newly

diagnosed adolescents and staff. However, it seems reason-

able to assume that adolescents with a relapse are in need of

special clinical and research attention. Another methodo-

logical aspect to consider is that participating adolescents and

staff, by necessity, were not ‘‘blinded,’’ that is, they were

informed about the aims and outlines of the study. This

awareness could speculatively tend to increase sensitivity and

overestimation. Thus, the results might not be fully

representative, which should be taken into consideration

when making conclusions for routine health care.

Pediatr Blood Cancer DOI 10.1002/pbc

TABLE III. Worst Aspects of Distress According to Adolescents (n¼ 53), Physicians (n¼ 48), and Nurses (n¼ 53)

Area Aspect of distress Adolescents Physicians Nurses

Physical concerns Infections 1 0 1

Mucositis 7 0 6

Nausea 7 1 3

Pain from disease 0 2 4

Pain from procedures/treatment 9 5 5

Other 0 0 1

Personal changes Changed temper 0 0 0

Fatigue 5 1 4

Hair loss 3 2 1

Round face 0 0 0

Weight loss/gain 1 0 0

Other 2 0 0

Feelings of alienation Experiencing lower self-esteem 0 0 0

Feeling different than friends 0 2 0

Feeling left-out by friends 2 0 1

Missing leisure activities 5 2 0

Not wanting others to see me 0 0 0

Other 1 1 4

Disease- and treatment-related worries Worry about being left-out by friends 0 0 0

Worry about changed appearance 0 0 0

Worry about pain from procedures/treatment 0 1 1

Worry about missing school 6 0 0

Worry about not getting well 11 32 23

Other 0 1 1

Don’t know 0 0 2

Numbers in columns refer to number of respondents mentioning each aspect as theworst. Respondents could report more than one aspect as theworst.

Distress Among Adolescents With Cancer 777

Our choice of expressing the accuracy of staff ratings in

terms of sensitivity and specificity has the advantage of

making it possible to discuss staff ratings of adolescent

distress, anxiety, and depression in terms of the properties of

the myriad of tests used in health care. There are no absolute

cut-off points for what is considered good sensitivity and

specificity for a test, as this is highly dependent on the clinical

situation in which the test is used. In general, both sensitivity

and specificity should be satisfactory, as a high sensitivity

alone may indicate a systematic overestimation and a high

specificity alone may indicate a systematic underestimation.

Sensitivity and specificity of screening and diagnostic tests

used in routine health care are often in the 70–100% range,

but lower values are not infrequent [17]. In this study,

sensitivity and specificity of around 60% and higher were

approximately equivalent to significant associations when

significance analyses were performed. Thus, as a basis for

discussing the accuracy of the staff ratings, these levels were

chosen to indicate reasonable agreement.

Physicians rated all aspects belonging to the area physical

concerns and the aspect hair loss from the area personal

changes with reasonable sensitivity and specificity, indicat-

ing acceptable accuracy for detection of physical problems.

Nurses did not reach as high an agreement as physicians

concerning nausea and pain, but their sensitivity and

specificity were higher for the aspects round face and weight

loss/gain than the physician’s ratings were. Overall, the

accuracy with which staff rated distress related to physical

aspects of disease and treatment could be considered

acceptable. For aspects belonging to the areas feelings of

alienation and disease and treatment-related worries, sensi-

tivity/specificity were generally unbalanced, with either a

sensitivity or specificity around 30% or lower. The results

indicate that it is difficult for staff to identify problems of a

psychosocial nature, a finding in concordance with previous

studies [3]. Staff frequently overestimated these aspects.

From a clinical point of view and in the present setting, it

seems reasonable to assume that sensitivity ismore important

than specificity when identifying which problems should be

taken into considerationwhen determining the need for some

kind of intervention. Low ability to identify absence of

distress may not have as serious consequences. Therefore, it

seems especially important that staff show high sensitivity to

those aspects that adolescents consider to be the worst.

For five of the six aspects that most adolescents considered

worst overall (mucositis, nausea, pain from procedures/

treatments, fatigue, and worry about not getting well), staff

showed high or reasonable sensitivity. For worry about

missing school, physicians showed a low sensitivity (25%)

and nurses a sensitivity that was only marginally better than

chance.

Nurses tended to show higher sensitivity than physicians

for distress related to psychosocial aspects, while physicians

tended to show higher accuracy than nurses for most aspects

of physical distress. It might be speculated that these findings

refer to occupational and/or gender differences, as most

nurses were women, and most physicians were men.

Physicians (or men) might be more used to thinking in

manners of absence or presence of treatment-related

problems, while nurses (or women) may be more oriented

towards general quality of life problems, present or potential.

Naturally, this discussion is tentative, but possibly worth

further exploration.

We found that among staff, somewhat contradictory to

earlier findings [5,6], overestimation of distress was more

common than underestimation. However, both physicians

and nurses underestimated distress for more adolescents than

they overestimated distress, concerning mucositis and worry

about missing school. These aspects were some of the most

prevalent and overall worst according to the adolescents.

Thus, mucositis and problems related to school need

increased attention from staff.

Staff tended to overestimate the distress experienced by

the adolescents. As a result, staff may feel overwhelmed or

reluctant to approach the adolescents out of misdirected

consideration. As adolescents may try to avoid burdening

their parents with their concerns [8], it is important that

adolescents, if they wish, get regular opportunities to talk

with physicians and nurses without their parents being

present, which is not presently the routine. The staffmay then

acquire an increased understanding of the adolescents’

concerns, and lack of concerns, which may help them to

provide adequate information and support as well as

prioritize care and recourses. Training in communication

skills may help staff to identify signs of distress. Further-

more, a ‘‘psychosocial routine’’ should be helpful, including,

for example, adolescent self-reports on psychosocial issues, a

Pediatr Blood Cancer DOI 10.1002/pbc

TABLE IV. Prevalence of and Agreement Between Adolescent(n¼ 53), Physician (n¼ 48), and Nurse (n¼ 53) Ratings of Anxietyand Depression

HADS-A HADS-D

Adolescents

Prevalence (%) 10 19

M (SD) 4.5 (3.0) 4.4 (2.9)

Cronbach alpha 0.64 0.56

Physicians

Sensitivity (%) 75 56

Specificity (%) 54 60

M (SD) 7.9 (4.0) 6.4 (3.4)

r 0.44 P< 0.01 n.s.

t (df) 4.8 (34)

P< 0.001

2.5 (34)

P< 0.05

Cronbach alpha 0.82 0.76

Nurses

Sensitivity (%) 60 50

Specificity (%) 82 71

M (SD) 7.0 (3.4) 6.0 (2.9)

r 0.37 P< 0.01 n.s.

t (df) 4.6 (45)

P< 0.001

3.1 (47)

P< 0.01

Cronbach alpha 0.84 0.75

778 Hedstrom et al.

routine assessment or interview by physicians or nurses, or

psychological assessments.

Worry about not getting well was the distress item most

often mentioned as the overall worst by adolescents,

physicians, and nurses. Still, the number of adolescents

mentioning the problem was low (n¼ 11) compared to

physicians (n¼ 32) and nurses (n¼ 23). This is a result that

indicates that even though many adolescents consider the

threat to their life to be very distressing, it is not as

outstanding for asmany adolescents as staff seems to believe.

Rather, adolescents’ distress seems to be more evenly

distributed among the distress areas.

The low Cronbach alpha values for the adolescent ratings

ofHADS-A andHADS-D (0.64 and 0.56, respectively)make

the interpretation of the staff assessments for HADS difficult

and tentative. As Eiser and Morse have pointed out, if the

reliability of a measure is low, agreement between raters can

never be high [18]. Both physician and nurse ratings

correlated lowly, but significantly, with adolescent ratings

on HADS-A, indicating that staff can identify some of those

adolescents who are more or less worried, even if they

overestimate the level of anxiety. For depression, however,

staff ratings did not correlate with the adolescent ratings. A

possible implication of this finding is that depression among

adolescents with cancer may go unidentified and thus

untreated.

In conclusion, staff members seem to be reasonably

accurate at identifying physical distress in adolescents

undergoing chemotherapy for newly diagnosed cancer.

However, since these adolescents frequently suffer from a

number of disease and treatment-related aspects poorly

identified by the staff, the use of staff ratings as a ‘‘test’’ to

guide specific support seems inaccurate. The accuracy of

staff ratings outside a research study might be even lower.

Thus, identification of, and action taken on, adolescent

problems in this situation needs to rely on direct commu-

nication between adolescents and staff.

ACKNOWLEDGMENT

We would like to express our sincere gratitude to the

adolescents, physicians, and nurses who agreed to share their

experiences with us.

REFERENCES

1. Brunelli C, Costantini M, Di Giulio P, et al. Quality-of-life

evaluation: When do terminal cancer patients and health-care

providers agree? J Pain Symptom Manage 1998;15:151–158.

2. Worchel FF,NolanBF,WillsonVL, et al. Assessment of depression

in children with cancer. J Pediatr Psychol 1988;13:101–112.

3. Phipps S, DunavantM, JayawardeneD, et al. Assessment of health-

related quality of life in acute in-patient settings: Use of the BASES

instrument in children undergoingbonemarrow transplantation. Int

J Cancer Suppl 1999;12:18–24.

4. Demyttenaere S, FinleyGA, JohnstonCC, et al. Pain treatment thres-

holds in children after major surgery. Clin J Pain 2001;17:173–177.

5. Billson A, Walker DA. Assessment of health status in survivors of

cancer. Arch Disease Child 1994;70:200–204.

6. Le Gales C, Costet N, Gentet JC, et al. Cross-cultural adaptation of

a health status classification system in children with cancer. First

results of the French adaptation of the Health Utilities IndexMarks

2 and 3. Int J Cancer Suppl 1999;12:112–118.

7. Eiser C, Morse R. The measurement of quality of life in children:

Past and future perspectives. JDevBehav Pediatr 2001;22:248–256.

8. Parsons SK, Barlow SE, Levy SL, et al. Health-related quality of

life in pediatric bone marrow transplant survivors: According to

whom? Int J Cancer Suppl 1999;12:46–51.

9. Chang PC, Yeh CH. Agreement between child self-report and

parent proxy-report to evaluate quality of life in children with

cancer. Psychooncology 2005;14:125–134.

10. Cleeland CS, Gonin R, Hatfield AK, et al. Pain and its treatment in

outpatientswithmetastatic cancer.NEngl JMed1994;330:592–596.

11. Hedstrom M, Haglund K, Skolin I, et al. Distressing events for

children and adolescents with cancer. Child, parent, and nurse

perceptions. J Pediatr Oncol Nurs 2003;20:120–132.

12. Hedstrom M, Skolin I, von Essen L. Distressing and positive

experiences and important aspects of care for adolescents treated

for cancer. Adolescent and nurse perceptions. Eur J Oncol Nurs

2004;8:6–17; discussion 18-19.

13. ZigmondAS, Snaith RP. The hospital anxiety and depression scale.

Acta Psychiatr Scand 1983;67:361–370.

14. von Essen L, Burstrom L, Sjoden PO. Perceptions of caring

behaviors and patient anxiety and depression in cancer patient-staff

dyads. Scand J Caring Sci 1994;8:205–212.

15. White D, Leach C, Sims R, et al. Validation of the hospital anxiety

and depression scale for usewith adolescents. Br J Psychiatry 1999;

175:452–454.

16. Berard RM, Boermeester F. Psychiatric symptomatology in

adolescents with cancer. Pediatr Hematol Oncol 1998;15:211–221.

17. Alberg AJ, Park JW, Hager BW, et al. The use of ‘‘overall

accuracy’’ to evaluate the validity of screening or diagnostic tests.

J Gen Intern Med 2004;19:460–465.

18. Eiser C, Morse R. Quality-of-life measures in chronic diseases of

childhood. Health Technol Assess 2001;5:1–157.

Pediatr Blood Cancer DOI 10.1002/pbc

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