Nutan Kumari, Channabasappa Noolvi, Jyoti S Hallad
{"title":"Geospatial mapping of consanguineous marriage in India: Evidence from a cross-sectional study.","authors":"Nutan Kumari, Channabasappa Noolvi, Jyoti S Hallad","doi":"10.1080/19485565.2026.2717343","DOIUrl":null,"url":null,"abstract":"<p><p>Consanguineous marriage remains a culturally embedded practice in many parts of India. This study examines the spatial distribution and socio-demographic correlates of consanguineous marriage across districts in India. Data were derived from the fifth round of the National Family Health Survey (NFHS-5), conducted in 2019-2021. Moran's Index and Univariate Local Indicator of Spatial Association (LISA) were used for analysis. The prevalence of consanguineous marriage decreased from 14.4% in 1992-93 to 10.8% in 2019-21. Out of 707 districts, 97 districts have high consanguineous marriages above 20 percent; among these, the top five districts are from Karnataka and Tamil Nadu. The regression model revealed that education, caste, religion, place of residence, and wealth index have a significant association with consanguineous marriage in India. Consanguineous marriage exhibits strong spatial clustering across India, driven by underlying socio-demographic characteristics.</p>","PeriodicalId":45428,"journal":{"name":"Biodemography and Social Biology","volume":" ","pages":"1-14"},"PeriodicalIF":1.4000,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biodemography and Social Biology","FirstCategoryId":"90","ListUrlMain":"https://doi.org/10.1080/19485565.2026.2717343","RegionNum":4,"RegionCategory":"社会学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"DEMOGRAPHY","Score":null,"Total":0}
引用次数: 0
Abstract
Consanguineous marriage remains a culturally embedded practice in many parts of India. This study examines the spatial distribution and socio-demographic correlates of consanguineous marriage across districts in India. Data were derived from the fifth round of the National Family Health Survey (NFHS-5), conducted in 2019-2021. Moran's Index and Univariate Local Indicator of Spatial Association (LISA) were used for analysis. The prevalence of consanguineous marriage decreased from 14.4% in 1992-93 to 10.8% in 2019-21. Out of 707 districts, 97 districts have high consanguineous marriages above 20 percent; among these, the top five districts are from Karnataka and Tamil Nadu. The regression model revealed that education, caste, religion, place of residence, and wealth index have a significant association with consanguineous marriage in India. Consanguineous marriage exhibits strong spatial clustering across India, driven by underlying socio-demographic characteristics.
期刊介绍:
Biodemography and Social Biology is the official journal of The Society for the Study of Social Biology, devoted to furthering the discussion, advancement, and dissemination of knowledge about biological and sociocultural forces affecting the structure and composition of human populations. This interdisciplinary publication features contributions from scholars in the fields of sociology, demography, psychology, anthropology, biology, genetics, criminal justice, and others. Original manuscripts that further knowledge in the area of social biology are welcome, along with brief reports, review articles, and book reviews.