Population-specific left ventricular hypertrophy in three groups from the northeastern region of India.
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Date
2010-11
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Abstract
Background. People living in the hills are continuously
exposed to strenuous physical activity for their day-to-day
work. Besides hypertension, left ventricular hypertrophy in
different populations may be related to continuous physical
activity.
Methods. Electrocardiogram, blood pressure and
sociodemographic information of 12 252 subjects >30 years
of age from three different population groups living in
Mizoram (hilly) and Assam (plain) were recorded. Of them,
8058 were from Mizoram and 3180 and 1014 were
indigenous Assamese and tea garden workers of Assam.
Results. Among the subjects from Mizoram the percentage
of smokers (41.9%), mean (SD) BMI (21.9 [3.8]) and waist–
hip ratio (0.87 [0.02]) were significantly higher than in those
from other groups. Tea garden workers had a higher mean
systolic blood pressure (145.2 [25.7]) and diastolic blood
pressure (87.6 [13.6]). The prevalence of left ventricular
hypertrophy was highest among tea garden workers (16.5%)
followed by people from Mizoram (3.7%) and the indigenous
Assamese (2%) people. In spite of a significantly higher
prevalence of hypertension among the indigenous Assamese
community than among those from Mizoram, left ventricular
hypertrophy was found to be lower in the former.
Conclusion. High prevalence of left ventricular hypertrophy among tea garden workers was possibly related to a higher prevalence of hypertension but the higher prevalence of left ventricular hypertrophy among people from Mizoram might be related to more physical activity.
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Borah P K, Hazarika N C, Biswas D, Kalita H C, Mahanta J. Population-specific left ventricular hypertrophy in three groups from the northeastern region of India. National Medical Journal of India. 2010 Nov-Dec; 23(6): 336-339.