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Data for Learning and ImprovementDavid M. Williams, Ph.D.
Institute for Healthcare Improvement
Murder rate down compared to this
time last year.
Celebration
Despair
Three Considerations
• Data Definition• Date Collection• Data Display
Data Definition
% child receiving assessments
Wait times
% of mom’s receiving pre-natal vitamins
% children in one clinic receiving assessment
# of books read% of meals with veg
Number of double smiles
PDSAs per week% parents rating 7 or greater for confidence
% of Mom’s screened for unhealthy habits
# of huddles per week
% Team members rate promise level
Data Definition
How will you know a change is an improvement?
Count =
Percentage = Rate =
Count
CountTotal 100
CountTotal Pop
100,000 population
Data Collection
Safety Cross
Case Study
Data Display
Elements of a Run Chart
Se-ries1
160
180
200
220
240
260
280
300
320
LO
S (m
inut
es)
2/16/11 3/16 4/13 5/11 6/8
Week
Mea
sure
Time
X (CL)~
The centerline (CL) on a Run Chart is the Median
IG p.435
Low Tech – Hand Written – Tester Owned
% antenatal bookers eligible for Healthy Start in Leith (self report)(n=410; source Maternity Trak)
Monthly data
release
Monthly data
release
Leith Pioneer site work
started 3 March
Universal enquiry re HSComplete form
at booking appt
Team meeting
Leith Survey Monkey
Team meeting
and survey results
Focus on Trak docu-mentation
“Shift” on run chart (6+ points above median)
Median
Annotated
Change Made Between Weeks 7 & 8
Before Change (Measure on Week 4) After Change (Meaure on Week 11)0
1
2
3
4
5
6
7
8
9
8
3
Del
ay t
ime
(ho
urs
)
Case 1
1 2 3 4 5 6 7 8 9 10 11 12 13 140
1
2
3
4
5
6
7
8
9
10
Weeks
Del
ay t
ime
(ho
urs
)
Ch
ang
e
Case 2
1 2 3 4 5 6 7 8 9 10 11 12 13 140
1
2
3
4
5
6
7
8
9
10
Weeks
Del
ay t
ime
(ho
urs
)
Ch
ang
e
Case 3
1 2 3 4 5 6 7 8 9 10 11 12 13 140
1
2
3
4
5
6
7
8
9
10
Weeks
Del
ay t
me
(ho
urs
)
Ch
ang
e
Case 4
1 2 3 4 5 6 7 8 9 10 11 12 13 140
1
2
3
4
5
6
7
8
9
10
Weeks
Del
ay t
ime
(ho
urs
)
Ch
ang
e
Case 5
1 2 3 4 5 6 7 8 9 10 11 12 13 140
1
2
3
4
5
6
7
8
9
Weeks
Del
ay t
ime
(ho
urs
)
Ch
ang
e
Case 6
1 2 3 4 5 6 7 8 9 10 11 12 13 140
1
2
3
4
5
6
7
8
9
10
Weeks
Del
ay t
ime
(ho
urs
)
Ch
ang
e
Change Made Between Weeks 7 & 8
Before Change (Measure on Week 4) After Change (Meaure on Week 11)0
1
2
3
4
5
6
7
8
9
8
3
Del
ay t
ime
(ho
urs
)
Radar or Spider Diagram
Radar or Spider Diagram
1 2 3 4 5 6 7 8 9 10 11 12 13 14
0
2
4
6
8
10
1 2 3 4 5 6 7 8 9 10 11 12 13 14
0123456789
10
1 2 3 4 5 6 7 8 9 10 11 12 13 14
0123456789
10
1 2 3 4 5 6 7 8 9 10 11 12 13 14
0
2
4
6
8
10
1 2 3 4 5 6 7 8 9 10 11 12 13 14
0123456789
1 2 3 4 5 6 7 8 9 10 11 12 13 14
0123456789
10
Aggregate vs. Stratified
Chinese Restaurant Demand Collection
Monday Tuesday Wednesday Thursday Friday0
5
10
15
20
25
30
Tables per Day
Lunch
Dinner
Monday Tuesday Wednesday Thursday Friday0
5
10
15
20
25
30
Tables per day - Lunch
Monday Tuesday Wednesday Thursday Friday0
5
10
15
20
25
30
Tables per day - Dinner
Breaking Down Data
Final 2 Slides
1 2 3 4 5 6 7 8 9 10111213141516171819202122232425262728293031320
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2
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9
10
# of Run Charts per Storyboard
CPP Storyboards
# o
f P
DS
A C
har
ts
Case Study – Improvers in action
https://www.youtube.com/watch?v=iWYIWE7SKcM
