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The Influence of BMI, Obesity and Overweight on Medical Costs: A Panel Data Approach

  • Toni Mora
  • Joan Gil
  • Antoni Sicras-Mainar

This paper estimates the impact of the BMI, obesity and overweight on direct medical costs. We apply panel data econometrics and use a two-part model with a longitudinal dataset of medical and administrative records of patients in primary and secondary healthcare centres in Spain followed up over seven consecutive years (2004-2010). Our findings show a positive and statistically significant impact of the BMI, obesity and overweight on annual medical costs after accounting for data restrictions, different subsamples of individuals and various econometric approaches.

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File URL: http://documentos.fedea.net/pubs/dt/2012/dt-2012-08.pdf
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Paper provided by FEDEA in its series Working Papers with number 2012-08.

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Date of creation: Oct 2012
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Handle: RePEc:fda:fdaddt:2012-08
Contact details of provider: Web page: http://www.fedea.net

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  1. Buntin, Melinda Beeuwkes & Zaslavsky, Alan M., 2004. "Too much ado about two-part models and transformation?: Comparing methods of modeling Medicare expenditures," Journal of Health Economics, Elsevier, vol. 23(3), pages 525-542, May.
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  8. John Cawley & Chad Meyerhoefer, 2010. "The Medical Care Costs of Obesity: An Instrumental Variables Approach," NBER Working Papers 16467, National Bureau of Economic Research, Inc.
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  11. Duan, Naihua, et al, 1984. "Choosing between the Sample-Selection Model and the Multi-part Model," Journal of Business & Economic Statistics, American Statistical Association, vol. 2(3), pages 283-89, July.
  12. Tom Hertz, 2010. "Heteroskedasticity-robust elasticities in logarithmic and two-part models," Applied Economics Letters, Taylor & Francis Journals, vol. 17(3), pages 225-228, February.
  13. Chamberlain, Gary, 1980. "Analysis of Covariance with Qualitative Data," Review of Economic Studies, Wiley Blackwell, vol. 47(1), pages 225-38, January.
  14. Jeffrey M. Wooldridge, 2005. "Simple solutions to the initial conditions problem in dynamic, nonlinear panel data models with unobserved heterogeneity," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 20(1), pages 39-54.
  15. Mundlak, Yair, 1978. "On the Pooling of Time Series and Cross Section Data," Econometrica, Econometric Society, vol. 46(1), pages 69-85, January.
  16. Beate Sander & Rito Bergemann, 2003. "Economic burden of obesity and its complications in Germany," The European Journal of Health Economics, Springer, vol. 4(4), pages 248-253, December.
  17. Jones, A.M, 2010. "Models For Health Care," Health, Econometrics and Data Group (HEDG) Working Papers 10/01, HEDG, c/o Department of Economics, University of York.
  18. Duan, Naihua, et al, 1983. "A Comparison of Alternative Models for the Demand for Medical Care," Journal of Business & Economic Statistics, American Statistical Association, vol. 1(2), pages 115-26, April.
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