Changes in asset-based wealth across the life course in birth cohorts from five low- and middle-income countries
Background: Temporally-harmonized asset-based measures of wealth can be used to study the association of life-course wealth exposures in the same scale with health outcomes in low- and middle-income countries (LMICs). The within-individual longitudinal stability of asset-based indices of wealth in L...
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2021
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oai:doaj.org-article:5a639f5e9746450a83eed3265028f4452021-11-26T04:35:00ZChanges in asset-based wealth across the life course in birth cohorts from five low- and middle-income countries2352-827310.1016/j.ssmph.2021.100976https://doaj.org/article/5a639f5e9746450a83eed3265028f4452021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2352827321002512https://doaj.org/toc/2352-8273Background: Temporally-harmonized asset-based measures of wealth can be used to study the association of life-course wealth exposures in the same scale with health outcomes in low- and middle-income countries (LMICs). The within-individual longitudinal stability of asset-based indices of wealth in LMICs is poorly understood. Methods: Using data from five birth cohorts from three continents, we developed temporally-harmonized asset indices over the life course through polychoric principal component analysis of a common set of assets collected consistently over time (18 years in Brazil to 50 years in Guatemala). For each cohort, we compared the harmonized index to cross-sectional indices created using more comprehensive asset measures using rank correlations. We evaluated the rank correlation of the harmonized index in early life and adulthood with maternal schooling and own attained schooling, respectively. Results: Temporally-harmonized asset indices developed from a consistently-collected set of assets (range: 10 in South Africa to 30 in Philippines) suggested that mean wealth improved over time for all birth cohorts. Cross-sectional indices created separately for each study wave were correlated with the harmonized index for all cohorts (Brazil: r = 0.78 to 0.96; Guatemala: r = 0.81 to 0.95; India: 0.75 to 0.93; Philippines: r = 0.92 to 0.99; South Africa: r = 0.84 to 0.96). Maternal schooling (r = 0.15 to 0.56) and attained schooling (r = 0.23 to 0.53) were positively correlated with the harmonized asset index in childhood and adulthood respectively. Conclusions: Temporally-harmonized asset indices displayed coherence with cross-sectional indices as well as construct validity with schooling.Jithin Sam VargheseLinda S. AdairShivani A. PatelSonny Agustin BechaydaSantosh K. BhargavaDelia B. CarbaBernardo L. HortaNatalia P. LimaReynaldo MartorellAna M.B. MenezesShane A. NorrisLinda M. RichterManuel Ramirez-ZeaHarshpal Singh SachdevFernando C. WehrmeisterAryeh D. SteinElsevierarticleWealth indexLife course epidemiologySocial mobilityPublic aspects of medicineRA1-1270Social sciences (General)H1-99ENSSM: Population Health, Vol 16, Iss , Pp 100976- (2021) |
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Wealth index Life course epidemiology Social mobility Public aspects of medicine RA1-1270 Social sciences (General) H1-99 |
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Wealth index Life course epidemiology Social mobility Public aspects of medicine RA1-1270 Social sciences (General) H1-99 Jithin Sam Varghese Linda S. Adair Shivani A. Patel Sonny Agustin Bechayda Santosh K. Bhargava Delia B. Carba Bernardo L. Horta Natalia P. Lima Reynaldo Martorell Ana M.B. Menezes Shane A. Norris Linda M. Richter Manuel Ramirez-Zea Harshpal Singh Sachdev Fernando C. Wehrmeister Aryeh D. Stein Changes in asset-based wealth across the life course in birth cohorts from five low- and middle-income countries |
description |
Background: Temporally-harmonized asset-based measures of wealth can be used to study the association of life-course wealth exposures in the same scale with health outcomes in low- and middle-income countries (LMICs). The within-individual longitudinal stability of asset-based indices of wealth in LMICs is poorly understood. Methods: Using data from five birth cohorts from three continents, we developed temporally-harmonized asset indices over the life course through polychoric principal component analysis of a common set of assets collected consistently over time (18 years in Brazil to 50 years in Guatemala). For each cohort, we compared the harmonized index to cross-sectional indices created using more comprehensive asset measures using rank correlations. We evaluated the rank correlation of the harmonized index in early life and adulthood with maternal schooling and own attained schooling, respectively. Results: Temporally-harmonized asset indices developed from a consistently-collected set of assets (range: 10 in South Africa to 30 in Philippines) suggested that mean wealth improved over time for all birth cohorts. Cross-sectional indices created separately for each study wave were correlated with the harmonized index for all cohorts (Brazil: r = 0.78 to 0.96; Guatemala: r = 0.81 to 0.95; India: 0.75 to 0.93; Philippines: r = 0.92 to 0.99; South Africa: r = 0.84 to 0.96). Maternal schooling (r = 0.15 to 0.56) and attained schooling (r = 0.23 to 0.53) were positively correlated with the harmonized asset index in childhood and adulthood respectively. Conclusions: Temporally-harmonized asset indices displayed coherence with cross-sectional indices as well as construct validity with schooling. |
format |
article |
author |
Jithin Sam Varghese Linda S. Adair Shivani A. Patel Sonny Agustin Bechayda Santosh K. Bhargava Delia B. Carba Bernardo L. Horta Natalia P. Lima Reynaldo Martorell Ana M.B. Menezes Shane A. Norris Linda M. Richter Manuel Ramirez-Zea Harshpal Singh Sachdev Fernando C. Wehrmeister Aryeh D. Stein |
author_facet |
Jithin Sam Varghese Linda S. Adair Shivani A. Patel Sonny Agustin Bechayda Santosh K. Bhargava Delia B. Carba Bernardo L. Horta Natalia P. Lima Reynaldo Martorell Ana M.B. Menezes Shane A. Norris Linda M. Richter Manuel Ramirez-Zea Harshpal Singh Sachdev Fernando C. Wehrmeister Aryeh D. Stein |
author_sort |
Jithin Sam Varghese |
title |
Changes in asset-based wealth across the life course in birth cohorts from five low- and middle-income countries |
title_short |
Changes in asset-based wealth across the life course in birth cohorts from five low- and middle-income countries |
title_full |
Changes in asset-based wealth across the life course in birth cohorts from five low- and middle-income countries |
title_fullStr |
Changes in asset-based wealth across the life course in birth cohorts from five low- and middle-income countries |
title_full_unstemmed |
Changes in asset-based wealth across the life course in birth cohorts from five low- and middle-income countries |
title_sort |
changes in asset-based wealth across the life course in birth cohorts from five low- and middle-income countries |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://doaj.org/article/5a639f5e9746450a83eed3265028f445 |
work_keys_str_mv |
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