The modeling of medical expenditure data from a longitudinal survey using the generalized method of moments (GMM) approach

Statistics in Medicine
Zachary HassHuiping Xu

Abstract

Medical expenditure data analysis has recently become an important problem in biostatistics. These data typically have a number of features making their analysis rather difficult. Commonly, they are heavily right-skewed, contain a large percentage of zeros, and often exhibit large numbers of missing observations because of death and/or the lack of follow-up. They are also commonly obtained from records that are linked to large longitudinal data surveys. In this manuscript, we suggest a novel approach to modeling these data through the use of generalized method of moments estimation procedure combined with appropriate weights that account for both dropout due to death and the probability of being sampled from among the National Long Term Care Survey (NLTCS) subjects. This approach seems particularly appropriate because of the large number of subjects relative to the length of observation period (in months). We also use a simulation study to compare our proposed approach with and without the use of weights. The proposed model is applied to medical expenditure data obtained from the 2004-2005 NLTCS-linked Medicare database. The results suggest that the amount of medical expenditures incurred is strongly associated with higher numb...Continue Reading

References

Aug 1, 2002·Western Journal of Nursing Research·Shawn M Kneipp, Hossein N Yarandi
Sep 17, 2002·Biometrics·Heejung Bang, Anastasios A Tsiatis
Mar 12, 2004·The Journals of Gerontology. Series B, Psychological Sciences and Social Sciences·Mitchell P LaPlanteCharlene Harrington
Mar 23, 2004·Biometrics·Shou-En LuWei-Chung Joe Shih
Feb 8, 2006·Journal of the American Geriatrics Society·Laura P SandsKenneth E Covinsky
Jun 19, 2009·Medical Care·Anirban Basu, Willard G Manning
Jun 19, 2009·Medical Care·Yijian Huang
Aug 28, 2010·Health Economics·Borislava MihaylovaSimon G Thompson
Apr 21, 2011·International Journal for Quality in Health Care : Journal of the International Society for Quality in Health Care·Dario GregoriEva Pagano
May 17, 2012·Journal of the American Geriatrics Society·Huiping XuLaura P Sands
Oct 2, 2012·Statistics in Medicine·Huiping XuLaura Sands
Jan 1, 2012·Medicare & Medicaid Research Review·Laura P SandsMichael Weiner
Apr 3, 2015·The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences·Shuang HeLaura P Sands

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