What causes concordance of hypertension between spouses in India? Identifying a critical knowledge gap from a nationally representative cross-sectional sample of 63,020 couples aged 15 + years

Abstract Background Hypertension, a critical risk factor for cardiovascular diseases, is found to cluster between spouses due to within-couple aggregation of antecedent environmental risk factors, either through assortative mating or cohabitation. However, majority of the evidence of spousal concord...

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Main Authors: Gayatri Nayak, Shishirendu Ghosal, Jyoti Ghosal, Ambarish Dutta
Format: Article
Language:English
Published: BMC 2023-07-01
Series:BMC Public Health
Subjects:
Online Access:https://doi.org/10.1186/s12889-023-16379-z
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author Gayatri Nayak
Shishirendu Ghosal
Jyoti Ghosal
Ambarish Dutta
author_facet Gayatri Nayak
Shishirendu Ghosal
Jyoti Ghosal
Ambarish Dutta
author_sort Gayatri Nayak
collection DOAJ
description Abstract Background Hypertension, a critical risk factor for cardiovascular diseases, is found to cluster between spouses due to within-couple aggregation of antecedent environmental risk factors, either through assortative mating or cohabitation. However, majority of the evidence of spousal concordance of hypertension is from Caucasoid couples from western societies, whereas marriage, partner selection, and post-marital roles of husband and wives are very different in Indian society. Therefore, we aimed to comprehensively examine the phenomenon of spousal concordance of hypertension in Indian couples. Method Couples from Longitudinal Ageing Study in India Wave 1 (n = 10,994) and National Family Health Survey Round 5 (n = 52,026) represented 15 years + Indian spouses. Hypertension was defined when systolic and/or diastolic blood pressure was > 139 and > 89 mmHg respectively, and/or if the individual was previously diagnosed or on anti-hypertensive medication. Odds Ratios (OR) estimated the within-couple concordance of hypertension while adjusting for five environmental risk factors of hypertension: individual-level body mass index, education and caste, and household-level wealth and place of residence. Result OR marginally attenuated from 1.84 (95% Confidence Interval: 1.77, 1.92) to 1.75 (1.68, 1.83) after adjustment, signifying negligible explanation by environmental risk factors, and plausibility of “novel” risk factors. Concordance continued to weaken with age (OR: 2.25 (2.02, 2.52) in < 30 versus 1.36 (1.20, 1.53) in ≥ 60 years). Conclusion Our study underscores two critical knowledge gaps: first, the identity of “novel” risk factors of hypertension and second, the mechanism behind weakening of concordance with age. Future research should explore these novel risk factors rigorously and try to modify them. Also, primary healthcare policy of the country should focus on couples in addition to individuals for hypertension and cardiovascular disease screening and management.
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spelling doaj.art-68b931b3fd0c450e955240d038f759362023-07-30T11:26:29ZengBMCBMC Public Health1471-24582023-07-0123111010.1186/s12889-023-16379-zWhat causes concordance of hypertension between spouses in India? Identifying a critical knowledge gap from a nationally representative cross-sectional sample of 63,020 couples aged 15 + yearsGayatri Nayak0Shishirendu Ghosal1Jyoti Ghosal2Ambarish Dutta3Tata Steel FoundationIndian Council of Medical Research—Regional Medical Research CentreIndian Council of Medical Research—Regional Medical Research CentreIndian Institute of Public Health, Public Health Foundation of IndiaAbstract Background Hypertension, a critical risk factor for cardiovascular diseases, is found to cluster between spouses due to within-couple aggregation of antecedent environmental risk factors, either through assortative mating or cohabitation. However, majority of the evidence of spousal concordance of hypertension is from Caucasoid couples from western societies, whereas marriage, partner selection, and post-marital roles of husband and wives are very different in Indian society. Therefore, we aimed to comprehensively examine the phenomenon of spousal concordance of hypertension in Indian couples. Method Couples from Longitudinal Ageing Study in India Wave 1 (n = 10,994) and National Family Health Survey Round 5 (n = 52,026) represented 15 years + Indian spouses. Hypertension was defined when systolic and/or diastolic blood pressure was > 139 and > 89 mmHg respectively, and/or if the individual was previously diagnosed or on anti-hypertensive medication. Odds Ratios (OR) estimated the within-couple concordance of hypertension while adjusting for five environmental risk factors of hypertension: individual-level body mass index, education and caste, and household-level wealth and place of residence. Result OR marginally attenuated from 1.84 (95% Confidence Interval: 1.77, 1.92) to 1.75 (1.68, 1.83) after adjustment, signifying negligible explanation by environmental risk factors, and plausibility of “novel” risk factors. Concordance continued to weaken with age (OR: 2.25 (2.02, 2.52) in < 30 versus 1.36 (1.20, 1.53) in ≥ 60 years). Conclusion Our study underscores two critical knowledge gaps: first, the identity of “novel” risk factors of hypertension and second, the mechanism behind weakening of concordance with age. Future research should explore these novel risk factors rigorously and try to modify them. Also, primary healthcare policy of the country should focus on couples in addition to individuals for hypertension and cardiovascular disease screening and management.https://doi.org/10.1186/s12889-023-16379-zConcordanceEnvironmentHypertensionSpousesIndia
spellingShingle Gayatri Nayak
Shishirendu Ghosal
Jyoti Ghosal
Ambarish Dutta
What causes concordance of hypertension between spouses in India? Identifying a critical knowledge gap from a nationally representative cross-sectional sample of 63,020 couples aged 15 + years
BMC Public Health
Concordance
Environment
Hypertension
Spouses
India
title What causes concordance of hypertension between spouses in India? Identifying a critical knowledge gap from a nationally representative cross-sectional sample of 63,020 couples aged 15 + years
title_full What causes concordance of hypertension between spouses in India? Identifying a critical knowledge gap from a nationally representative cross-sectional sample of 63,020 couples aged 15 + years
title_fullStr What causes concordance of hypertension between spouses in India? Identifying a critical knowledge gap from a nationally representative cross-sectional sample of 63,020 couples aged 15 + years
title_full_unstemmed What causes concordance of hypertension between spouses in India? Identifying a critical knowledge gap from a nationally representative cross-sectional sample of 63,020 couples aged 15 + years
title_short What causes concordance of hypertension between spouses in India? Identifying a critical knowledge gap from a nationally representative cross-sectional sample of 63,020 couples aged 15 + years
title_sort what causes concordance of hypertension between spouses in india identifying a critical knowledge gap from a nationally representative cross sectional sample of 63 020 couples aged 15 years
topic Concordance
Environment
Hypertension
Spouses
India
url https://doi.org/10.1186/s12889-023-16379-z
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