Gender difference in prevalence of hypertension among Indians across various age-groups: a report from multiple nationally representative samples

Abstract Background Prevalence of hypertension increases with age, but there is a general perception in India that women are less affected at every stage of life, although empiric evidence hardly exists regarding gender difference in hypertension in Indians of different ages. Therefore, we aimed to...

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Main Authors: Parimala Mohanty, Lipilekha Patnaik, Gayatri Nayak, Ambarish Dutta
Format: Article
Language:English
Published: BMC 2022-08-01
Series:BMC Public Health
Subjects:
Online Access:https://doi.org/10.1186/s12889-022-13949-5
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author Parimala Mohanty
Lipilekha Patnaik
Gayatri Nayak
Ambarish Dutta
author_facet Parimala Mohanty
Lipilekha Patnaik
Gayatri Nayak
Ambarish Dutta
author_sort Parimala Mohanty
collection DOAJ
description Abstract Background Prevalence of hypertension increases with age, but there is a general perception in India that women are less affected at every stage of life, although empiric evidence hardly exists regarding gender difference in hypertension in Indians of different ages. Therefore, we aimed to examine the gender difference in hypertension among Indians across various age-groups; and the contribution of variation in body mass index (BMI) to this difference. Methods Data were analysed after combining National Family Health Survey 4 (n = 294,584 aged 35–49 years) and Study of Ageing and Health wave 2 (n = 7118 aged 50 + years) datasets (NFHS-SAGE). Longitudinal Ageing Study of India (LASI) dataset (n = 65,900 aged > 45years) was analysed to replicate the results. Hypertension was defined if systolic and diastolic blood pressure was > 89 and/or > 139 respectively and/or if there was a history of anti-hypertensive medication. Descriptive summaries were tabulated and plotted to examine the gender difference in hypertension in various age-groups (35–39,40–44, 45–49, 50–54, 55–59, 60–64, 65–69, ≥ 70). Odds Ratios (ORs) from logistic regression models estimated the age gradient of hypertension and their male-female difference, adjusted for Body Mass Index (BMI). Results Males had a higher prevalence of hypertension up to 50 years; after that, females had higher rates. The estimates of age gradient, expressed as ORs, were 1.02 (1.02, 1.02) in males versus 1.05(1.05, 1.06) in females (p < 0.001) in NFHS-SAGE and 1.01(1.01, 1.02) in males versus 1.04(1.03, 1.04)in females (p < 0.001) in LASI;these differences marginally changed after adjustment with BMI. Conclusion This is perhaps the first study to comprehensively demonstrate that cardio-metabolic risk in Indian females surpasses males after 50 years of age, “busting the myth” that Indian females are always at much lower risk than males; and this evidence should inform the Indian healthcare system to prioritise older women for screening and treatment of hypertension.
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spelling doaj.art-520814010a2c4b68a3bffe4cce4ef6bd2022-12-22T03:59:06ZengBMCBMC Public Health1471-24582022-08-0122111010.1186/s12889-022-13949-5Gender difference in prevalence of hypertension among Indians across various age-groups: a report from multiple nationally representative samplesParimala Mohanty0Lipilekha Patnaik1Gayatri Nayak2Ambarish Dutta3Department of Community Medicine, Institute of Medical Sciences and Sum Hospital, Siksha ’O’ Anusandhan Deemed to be UniversityDepartment of Community Medicine, Institute of Medical Sciences and Sum Hospital, Siksha ’O’ Anusandhan Deemed to be UniversityIndian Institute of Public Health, Public Health Foundation of IndiaIndian Institute of Public Health, Public Health Foundation of IndiaAbstract Background Prevalence of hypertension increases with age, but there is a general perception in India that women are less affected at every stage of life, although empiric evidence hardly exists regarding gender difference in hypertension in Indians of different ages. Therefore, we aimed to examine the gender difference in hypertension among Indians across various age-groups; and the contribution of variation in body mass index (BMI) to this difference. Methods Data were analysed after combining National Family Health Survey 4 (n = 294,584 aged 35–49 years) and Study of Ageing and Health wave 2 (n = 7118 aged 50 + years) datasets (NFHS-SAGE). Longitudinal Ageing Study of India (LASI) dataset (n = 65,900 aged > 45years) was analysed to replicate the results. Hypertension was defined if systolic and diastolic blood pressure was > 89 and/or > 139 respectively and/or if there was a history of anti-hypertensive medication. Descriptive summaries were tabulated and plotted to examine the gender difference in hypertension in various age-groups (35–39,40–44, 45–49, 50–54, 55–59, 60–64, 65–69, ≥ 70). Odds Ratios (ORs) from logistic regression models estimated the age gradient of hypertension and their male-female difference, adjusted for Body Mass Index (BMI). Results Males had a higher prevalence of hypertension up to 50 years; after that, females had higher rates. The estimates of age gradient, expressed as ORs, were 1.02 (1.02, 1.02) in males versus 1.05(1.05, 1.06) in females (p < 0.001) in NFHS-SAGE and 1.01(1.01, 1.02) in males versus 1.04(1.03, 1.04)in females (p < 0.001) in LASI;these differences marginally changed after adjustment with BMI. Conclusion This is perhaps the first study to comprehensively demonstrate that cardio-metabolic risk in Indian females surpasses males after 50 years of age, “busting the myth” that Indian females are always at much lower risk than males; and this evidence should inform the Indian healthcare system to prioritise older women for screening and treatment of hypertension.https://doi.org/10.1186/s12889-022-13949-5HypertensionGenderAge-groupsBMINFHSLASI
spellingShingle Parimala Mohanty
Lipilekha Patnaik
Gayatri Nayak
Ambarish Dutta
Gender difference in prevalence of hypertension among Indians across various age-groups: a report from multiple nationally representative samples
BMC Public Health
Hypertension
Gender
Age-groups
BMI
NFHS
LASI
title Gender difference in prevalence of hypertension among Indians across various age-groups: a report from multiple nationally representative samples
title_full Gender difference in prevalence of hypertension among Indians across various age-groups: a report from multiple nationally representative samples
title_fullStr Gender difference in prevalence of hypertension among Indians across various age-groups: a report from multiple nationally representative samples
title_full_unstemmed Gender difference in prevalence of hypertension among Indians across various age-groups: a report from multiple nationally representative samples
title_short Gender difference in prevalence of hypertension among Indians across various age-groups: a report from multiple nationally representative samples
title_sort gender difference in prevalence of hypertension among indians across various age groups a report from multiple nationally representative samples
topic Hypertension
Gender
Age-groups
BMI
NFHS
LASI
url https://doi.org/10.1186/s12889-022-13949-5
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