AB

ST

RA

CT

S

S198 Heart, Lung and CirculationAbstracts 2009;18S:S1–S286

446SCREENING FOR CARDIOVASCULAR DISEASE INMAORI COMMUNITIES: THE COMMUNITY HEARTSTUDY

Allamanda Faatoese 1, Elisabeth Wells 3, SuzannePitama 2, Matea Gilles 2, Rob Doughty 4, RichardTroughton 1, Mark Richards 1, Vicky Cameron 1

1 Christchurch Cardioendocrine Research Group, New Zealand2 Maori Indigenous Health Institute, University of Otago,Christchurch, New Zealand3 Department of Public Health, University of Otago,Christchurch, New Zealand4 Department of Medicine, University of Auckland, NewZealand

The Community Heart Study documented current lev-els of cardiovascular disease (CVD), diabetes and their riskfactors in a rural Maori community at Wairoa (HawkesBay), urban Maori in Christchurch and an age–gendermatched non-Maori Christchurch cohort. Participants(aged 20–64 years) were randomly selected from the elec-toral roll. Recruitment of participants involved invitationletters, phone calls and doorknocking. The response rateswere 58% among Wairoa Maori, 45% among Chch Maori,53% among Chch non-Maori. The co-operation rateswere 73% among Wairoa Maori, 66% among Chch Maori,and 70% among Chch non-Maori. Preliminary screeningresults for Wairoa Maori showed 32.8% of participantswith a healthy BMI, 34.6% overweight and 32.3% obese.Current smokers were 42%, ex-smokers 39% and 19% hadnever smoked. There were 25% previously diagnosed withhypertension and an additional 37.4% were hypertensiveat screening. There were 14.2% with a prior diagno-sis of dyslipidaemia and at screening 39.0% had a totalcholesterol:HDL cholesterol ratio >4.5. Triglyceride levels>1.7 mmol/L were seen in 28% of participants. Of concern,a substantial number of young men aged between 25 and39 were among the highest cholesterol levels. A total of37% of men and 63% of women were identified as hav-ing the metabolic syndrome and 10.6% had known type-2diabetes. Excluding diabetics, 17% of women and 12% ofmen were insulin resistant. Of the Wairoa cohort, 7.9%had a previous cardiac event. It was estimated that 70%of women and 50% of men had less than 10% 5-year CVDrisk.

doi:10.1016/j.hlc.2009.05.448

447

THE EXCESS BURDEN OF CORONARY DISEASE INNEW ZEALAND MAORI: INCIDENCE, PREVALENCEAND SURVIVAL

M. Tobias 1, L.-C. Yeh 1, C. Wright 1, T. Riddell 2, W.C.Chan 2, R. Jackson 2, S. Mann 3

1 Public Health Intelligence, Ministry of Health, New Zealand2 School of Population Health, University of Auckland, NewZealand3 Department of Medicine, University of Otago, Wellington,New Zealand

Background: Maori have a higher incidence and mor-tality from coronary heart disease (CHD) than the widerpopulation in New Zealand. We wished to examine this indetail using existing health information compiled for theyears 2000–2002.

Methods: We obtained data for 2000–2002 from the NewZealand Health Information Service and undertook recordlinkage using unique national patient identifier numbers.Incidence included all first CHD hospital admissions andall out-of-hospital deaths attributed to CHD where noprevious admission had been recorded in the precedingfive years. Prevalence, survival and other parameters werederived using multi-state lifetables.

Results: Maori had a higher CHD incidence and highercase fatality than non-Maori. Maori developed CHD ata younger age (medians 56.5 years for males and 58.8years for females) than non-Maori (medians 67.5 and 77.5respectively). The lifetime risk of CHD for Maori (36% formales and 34% for females), was only slightly higher thanthat for the non-Maori population (35% and 28% respec-tively) despite higher Maori CHD incidence. This appearsto reflect increased age-specific mortality for non-CHD ill-nesses as well as CHD. Duration of survival with CHD inMaori (9.2 years) was similar to that of the non-Maori pop-ulation for males (9.5 years) but longer for females (11.2 vs.6.2 years), which is most likely related to the earlier age ofonset in the Maori population.

Conclusions: CHD has a markedly higher impact inMaori and at younger ages than in the wider populationidentifying areas requiring prioritisation.

doi:10.1016/j.hlc.2009.05.705