PT  - JOURNAL ARTICLE
AU  - Jennifer Logue
AU  - Heather M Murray
AU  - Paul Welsh
AU  - James Shepherd
AU  - Chris Packard
AU  - Peter Macfarlane
AU  - Stuart Cobbe
AU  - Ian Ford
AU  - Naveed Sattar
TI  - Obesity is associated with fatal coronary heart disease independently of traditional risk factors and deprivation
AID  - 10.1136/hrt.2010.211201
DP  - 2011 Apr 01
TA  - Heart
PG  - 564--568
VI  - 97
IP  - 7
4099  - http://heart.bmj.com/content/97/7/564.short
4100  - http://heart.bmj.com/content/97/7/564.full
SO  - Heart2011 Apr 01; 97
AB  - Background The effect of body mass index (BMI) on coronary heart disease (CHD) risk is attenuated when mediators of this risk (such as diabetes, hypertension and hyperlipidaemia) are accounted for. However, there is now evidence of a differential effect of risk factors on fatal and non-fatal CHD events, with markers of inflammation more strongly associated with fatal than non-fatal events.Objective To describe the association with BMI separately for both fatal and non-fatal CHD risk after accounting for classical risk factors and to assess any independent effects of obesity on CHD risk.Methods and results In the West of Scotland Coronary Prevention Study BMI in 6082 men (mean age 55 years) with hypercholesterolaemia, but no history of diabetes or CVD, was related to the risk of fatal and non-fatal CHD events. After excluding participants with any event in the first 2 years, 1027 non-fatal and 214 fatal CHD events occurred during 14.7 years of follow-up. A minimally adjusted model (age, sex, statin treatment) and a maximally adjusted model (including known CVD risk factors and deprivation) were compared, with BMI 25–27.4 kg/m2 as referent. The risk of non-fatal events was similar across all BMI categories in both models. The risk of fatal CHD events was increased in men with BMI 30.0–39.9 kg/m2 in both the minimally adjusted model (HR=1.75 (95% CI 1.12 to 2.74)) and the maximally adjusted model (HR=1.60 (95% CI 1.02 to 2.53)).Conclusions These hypothesis generating data suggest that obesity is associated with fatal, but not non-fatal, CHD after accounting for known cardiovascular risk factors and deprivation.Clinical trial registration WOSCOPS was carried out and completed before the requirement for clinical trial registration.