Article Text
Abstract
Indo-Pakistani populations have one of the highest risks of coronary artery disease (CAD) in the world. A population-based, cross-sectional survey was conducted on 3143 adults aged ⩾40 years from 12 randomly selected communities in Karachi, Pakistan. Apart from smoking, women had more CAD risk factors (diabetes, hypertension, obesity, dyslipidaemia) than men. Definite CAD (history and Q waves on ECG) was more prevalent in men than in women (6.1% vs 4.0%; p = 0.009). In contrast, ischaemic and major ECG changes were twice as prevalent in women as in men (29.4% vs 15.6%, and 21.0% vs 10.5%; p<0.001 for each, respectively). All measures of CAD were strongly predicted by the metabolic syndrome, but that failed to account for the greater prevalence of ECG abnormalities in women than in men. The findings indicate that one in five middle-aged adults in urban Pakistan may have underlying CAD. Women are at greater risk than men.
Trial registration number: NCT00327574
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Footnotes
Members of the Hypertension Research Group other than the authors include: Drs J Hatcher, S Badruddin, A Hameed, F Jafary, A Khan, M Karim, A Gilani, F White, S Hashmi, S Jessani, Mr R Bux, M Saleem, P Cosgrove and Ms A Khan (Aga Khan University, Karachi, Pakistan), and Dr N Poulter (Imperial College, UK).
Funding: THJ, NC supported by an award from the Wellcome Trust, UK.
Competing interests: None.
Ethics approval: Ethics approval was received from the ethics review committee at the Aga Khan University, Pakistan.