Is Mothers’ Work Related to Childhood Weight Changes in the United States?
Taking family structure, father’s work intensity, and children’s developmental stages into consideration, this study examined the effect of a mother’s previous and contemporaneous work (employment and weekly work hours) on their children’s weight and their likelihood of having weight problems such as obesity, overweight, and underweight. Using data from the Early Childhood Longitudinal Study-Kindergarten Class of 1998–1999 (ECLS-K), this study adopted a fixed effect model and found that for 3rd to 5th graders, an increase in mothers’ previous work hours among two-parent families below the federal poverty level (FPL) increased the risk of the child being obese, while the current employment of single mothers below the FPL reduced the risk of the child being obese. Surprisingly, the employment of single mothers below the FPL increased the risk of the child being underweight, especially for 1st to 3rd graders.
KeywordsMothers’ employment and work hours Body mass index Childhood weight changes Single mothers Married mothers
Compliance with Ethical Standards
Conflict of interest
Haeil Jung and Chaeyoung Chang declare that they have no conflict of interest, nor financial disclosures to report. This study relied on secondary data from the Early Childhood Longitudinal Study-Kindergarten Class of 1998–1999 (ECLS-K). No consent forms or Institutional Review Board approval was sought for this reason.
- Bureau of Labor Statistics (2012). BLS Report: women in the labor force. http://www.bls.gov/cps/wlf-databook-2012.pdf
- Cawley, J., & Liu, F. (2007). Maternal employment and childhood obesity: A search for mechanisms in time use data (Working Paper No. 13600). National Bureau of Economic Research. Retrieved from http://www.nber.org/papers/w13600
- Center for Disease Control and Prevention (2014). Basics about childhood obesity. Retrieved from http://www.cdc.gov/obesity/childhood/basics.html
- Chia, Y. F. (2008). Maternal labour supply and childhood obesity in Canada: Evidence from the NLSCY. Canadian Journal of Economics/Revue Canadienne D’économique, 41, 217–242. Retrieved from http://www.jstor.org/stable/25478273.
- Daniels, S. R. (2006). The consequences of childhood overweight and obesity. The Future of Children, 16, 47–67. Retrieved from http://muse.jhu.edu/journals/future_of_children/v016/16.1daniels.html
- Dietz, W. H. (1998). Health consequences of obesity in youth: childhood predictors of adult disease. Pediatrics, 101(Supplement 2), 518–525.Google Scholar
- Guo, S. S., Wu, W., Chumlea, W. C., & Roche, A. F. (2002). Predicting overweight and obesity in adulthood from body mass index values in childhood and adolescence. The American Journal of Clinical Nutrition, 76(3), 653–658.Google Scholar
- Story, M., Kaphingst, K. M., & French, S. (2006). The role of child care settings in obesity prevention. The Future of Children, 16, 143-168. Retrieved from http://www.jstor.org/stable/3556554
- United States Census Bureau (2014). Poverty. Retrieved from https://www.census.gov/hhes/www/poverty/data/threshld/
- Wooldridge, J. M. (2009). Introductory econometrics: a modern approach. Madison: South-Western Cengage Learning.Google Scholar