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The effect of schooling on women’s overweight and obesity: a natural experiment in Nigeria

Barlow, Pepita (2021) The effect of schooling on women’s overweight and obesity: a natural experiment in Nigeria. Demography, 58 (2). 685 - 710. ISSN 0070-3370

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Identification Number: 10.1215/00703370-8990202

Abstract

An extensive social scientific literature has documented the importance of schooling in preventing overweight and obesity among women. However, prior quasi-experimental studies investigating the causal effect of schooling on women's overweight and obesity have focused almost exclusively on high-income countries (HICs). Schooling effects may differ in low- or middle-income countries (LMICs), where information about the harms of being overweight is often sparse and where larger body sizes can be socially valued. Here I evaluate the causal impact of schooling on women's probability of being overweight or obese in an LMIC, Nigeria, using data from the 2003, 2008, and 2013 Demographic Health Surveys. In 1976, the Nigerian government abolished primary school fees and increased funding for primary school construction, creating quasi-random variation in access to primary school according to an individual's age and the number of newly constructed schools in their state of residence. I exploit both sources of variation and use a two-stage instrumental variables approach to estimate the effect of increased schooling on the probability of being overweight or obese. Each additional year of schooling increased the probability of being overweight or obese by 6%, but this effect estimate was not statistically different from zero. This finding differs from the protective effect of schooling documented in several HICs, suggesting that contextual factors play an important role calibrating the influence of additional schooling on overweight or obesity. Furthermore, my findings contrast markedly with the positive correlation between schooling and overweight/obesity identified in previous studies in Nigeria, suggesting that studies failing to account for selection bias overestimate the causal effect of schooling. More robust causal research is needed to examine the effect of schooling on overweight and obesity in LMIC contexts.

Item Type: Article
Official URL: https://read.dukeupress.edu/demography
Additional Information: © 2021 The Author
Divisions: Health Policy
International Inequalities Institute
Subjects: H Social Sciences > HV Social pathology. Social and public welfare. Criminology
H Social Sciences > HQ The family. Marriage. Woman
Date Deposited: 02 Jun 2020 09:03
Last Modified: 20 Sep 2021 09:36
URI: http://eprints.lse.ac.uk/id/eprint/104668

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