Abstract:
Abstract : Objectives: To determine the prevalence of ischemic-heart-disease
(IHD) and its risk factors. We also aimed to study how the common risk factors
contribute to IHD in Sri Lankan adults. Methods: A nationally representative cross
sectional was carried out in 2005 recruiting 4,484 individuals. Data were collected
using a detailed questionnaire, a clinical examination and investigations (ECG and
biochemical investigations). Individuals were defined as having IHD if they had
ECG evidence of cardiac ischaemia or had positive Rose Angina questionnaire
(RAQ) or on treatment for IHD. Results: Age, sex standardized prevalence of IHD
was 9.3% (Male - 7.2%, Female - 11.3%). RAQ was positive in 2.0% and ECG
evidence of ischaemia was seen in 7.2%. The following risk factors were
identified: hypertension 1212.6%, one or more lipid abnormality 37.0%, smoking
18.4%, physical inactivity 14.1%, obesity 8.9%, diabetes 11.5% and family
history of IHD 22.9%. For both males and fen1ales, higher odds-ratios for IHD
were seen with hypertension, diabetes and inactivity. Having Multiple risk factors
significantly increased the risk of having IHD. Conclusions: This study showed a
high prevalence of IHD in Sri Lanka. Early identification and correction of the
risk factors may provide an opportunity for early intervention and effective
prevention of IHD.
