Abstract
BackgroundLifestyle factors associated with hypertension (HT) in South Asian populations are relatively unknown. The objective of the current study was to investigate the prevalence rates of undiagnosed HT and factors associated with it in a cohort of males from the Central Province of Sri Lanka.MethodsThe study group consisted of 2462 males (mean age 31 years, range: 16–72 years) who underwent a routine medical examination at the National Transport Medical Institute, Kandy, Sri Lanka. Participants with previously diagnosed heart disease, diabetes, hypertension or other chronic illnesses were excluded from this study. Dietary and other lifestyle factors were studied using validated self-administered questionnaires. Body Mass Index (BMI) cut-off values for Asians were used to categorize the subjects according to weight status. The association of individual dietary and lifestyle patterns with HT was assessed by fitting into binary logistic regression models.ResultsThe mean systolic (SBP) and diastolic blood pressures (DBP) of the individuals were 125.9 mmHg and 80.5 mmHg, respectively. The prevalence rate of undiagnosed HT was 31.7%. Both SBP and DBP showed significant positive correlations with age, weight, BMI and waist circumference. After adjusting for potential confounders, HT was associated with older age (p = 0.001) and increased weight status (p < 0.001) with trends of association for level of education (p = 0.058). Level of income, alcohol consumption, sleeping hours, smoking, physical activity level, ethnic difference, consumption of fruits, fish, meat, dairy, sweets or fried snacks were not significantly associated with HT. Obese males were 92.1% [odds ratio: 1.9 (1.4–2.7)] more likely to be hypertensive compared to normal weight males.ConclusionsUndiagnosed HT is prevalent at an alarming rate among adult males in the Central Province of Sri Lanka. Its association with age and BMI (weight status) highlights the importance of routine screening for HT as well as interventions targeted at reducing obesity to curb the rise of this modifiable cardiovascular disease risk factor.
Highlights
Lifestyle factors associated with hypertension (HT) in South Asian populations are relatively unknown
An estimated 800 million adults in the world are suffering from hypertension (HT) [1], a cardiovascular disease risk factor which is estimated to account for 6% of all deaths [2]
Research design and population The data for this study were obtained from the baseline assessment of the National Transport Medical Test Cohort, a prospective study being conducted to assess lifestyle factors associated with non-communicable disease risk factors in the Central Province of Sri Lanka
Summary
Lifestyle factors associated with hypertension (HT) in South Asian populations are relatively unknown. The objective of the current study was to investigate the prevalence rates of undiagnosed HT and factors associated with it in a cohort of males from the Central Province of Sri Lanka. Industrialization, nutrition transition and globalization that lead to a rapidly change in lifestyles could at least in part account for the increasing prevalence of hypertension. Sri Lanka is a South Asian nation with lower-middle income status. According to the World Health Organization (WHO) non-communicable diseases country profiles, the prevalence of hypertension among Sri Lankans was 39.2% (41.4% in males and 37.1% in females) in year 2008 [6]
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