GP supply and obesity
We investigate the relationship between area general practitioner (GP) supply and individual body mass index (BMI) in England. Individual level BMI is regressed against area whole time equivalent GPs per 1000 population plus a large number of individual and area level covariates. We use instrumental variables (area house prices and age weighted capitation) to allow for the endogeneity of GP supply. We find that that a 10% increase in GP supply is associated with a mean reduction in BMI of around 1Â kg/m2 (around 4% of mean BMI). The results suggest that reduced list sizes per GP can improve the management of obesity.
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- Hugh Gravelle & Matthew Sutton & Stephen Morris & Frank Windmeijer & Alastair Leyland & Chris Dibben & Mike Muirhead, 2003. "Modelling supply and demand influences on the use of health care: implications for deriving a needs-based capitation formula," Health Economics, John Wiley & Sons, Ltd., vol. 12(12), pages 985-1004.
- Moulton, Brent R, 1990. "An Illustration of a Pitfall in Estimating the Effects of Aggregate Variables on Micro Unit," The Review of Economics and Statistics, MIT Press, vol. 72(2), pages 334-338, May.
- Stephen Morris & Hugh Gravelle, 2006.
"GP supply and obesity,"
013cherp, Centre for Health Economics, University of York.
- Loureiro, Maria L. & Nayga, Rodolfo Jr, 2006. "Obesity, weight loss, and physician's advice," Social Science & Medicine, Elsevier, vol. 62(10), pages 2458-2468, May.
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