Relative and absolute wealth mobility since birth in relation to health and human capital in middle adulthood: An analysis of a Guatemalan birth cohort

• Type of Material: Article
• Authors: Jithin S Varghese, Emory University; Shivani Patel, Emory University; Reynaldo Martorell, Emory University; Manuel Ramirez-Zea, Institute of Nutrition of Central America and Panama (INCAP); Aryeh Stein, Emory University
• Language: English
• Date: 2021-06-23
• Publisher: ELSEVIER SCI LTD
• Publication Version: Final Published Version
• Copyright Statement: © 2021 The Authors
• License: Creative Commons Attribution 4.0 International
• Final Published Version (URL): http://dx.doi.org/10.1016/j.ssmph.2021.100852
• Title of Journal or Parent Work: SSM-POPULATION HEALTH
• Volume: 15
• Start Page: 100852
• End Page: 100852
• Grant/Funding Information: This work was supported by the Bill & Melinda Gates Foundation (Opp1164114). The sponsor had no involvement in conduct of research and preparation of article.
• Keywords: Social mobility; GROWTH; LIFE; POPULATION; Latent class analysis; Conditional wealth; Life Sciences & Biomedicine; Public, Environmental & Occupational Health; Science & Technology; SOCIOECONOMIC POSITION; NUTRITION; INCOME INEQUALITY; CHILDHOOD; SOCIAL-MOBILITY; COUNTRIES; Life course socio-economic position; FOLLOW-UP
• Research Categories: Health Sciences, Public Health

Abstract

Background: Wealth mobility, as both relative (positional) and absolute (material) wealth acquisition, may counteract negative consequences of early life adversities on adult health. Methods: We use longitudinal data (1967–2018) from the INCAP birth cohort, Guatemala (n = 1386). Using wealth as a measure of socio-economic position, we assess the association of life course relative mobility using latent class analysis and absolute material gains using conditional wealth measures. We estimate associations of wealth mobility with indicators of human capital, specifically height, weight status (BMI in kg/m2), psychological distress (WHO SRQ-20 score) and fluid intelligence (Ravens Progressive Matrices score; RPM) in middle adulthood. Results: We identified four latent classes of relative mobility – Stable Low (n = 498), Stable High (n = 223), Downwardly Mobile (n = 201) and Upwardly Mobile (n = 464). Attained schooling (years) was positively associated with membership in Upwardly Mobile (odds ratio; 1.50, 95%CI: 1.31, 1.71) vs Stable Low, and inversely with membership in Downwardly Mobile (0.65, 95%CI: 0.54, 0.79) vs Stable High. Being Upwardly Mobile (vs Stable Low) was positively associated with height (1.88 cm, 95%CI: 1.04, 2.72), relative weight (1.32 kg/m2, 95%CI: 0.57, 2.07), lower psychological distress (−0.82 units, 95%CI: 1.34, −0.29) and fluid intelligence (0.94 units, 95%CI: 0.28, 1.59). Being Downwardly Mobile (vs Stable High) was associated with lower fluid intelligence (−2.69 units, 95%CI: 3.69, −1.68), and higher psychological distress (1.15 units, 95%CI: 0.34, 1.95). Absolute wealth gains (z-scores) from early to middle adulthood were positively associated with relative weight (0.62 kg/m2, 95%CI: 0.28, 0.96), lower psychological distress (−0.37 units, 95%CI: 0.60, −0.14) and fluid intelligence (0.50 units, 95%CI: 0.21, 0.79). Conclusions: Higher attained schooling provided a pathway for upward relative mobility and higher absolute wealth gains as well as protection against downward relative mobility. Upward mobility was associated with lower psychological distress and higher fluid intelligence but also higher weight status.