Article citationsMore>>
Rubenstein, L., Kahn, K., Reinisch, E., Sherwood, M., Rogers, W., Karnberg, Draper, D. and Brook, R. (1990) Changes in quality of care for five diseases measured by implicit review. Journal of the American Medical Association, 264(15), 1981-1986.
has been cited by the following article:
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TITLE:
Estimating the effect of early discharge policy on readmission rate. An instrumental variable approach
AUTHORS:
Eugenia Amporfu
KEYWORDS:
Instrument; Length of Stay; Early Discharge; Endogeneity;Instrumental Variable Estimation
JOURNAL NAME:
Health,
Vol.2 No.5,
May
27,
2010
ABSTRACT: Early discharge policy, common in the developed countries, refers to the reduction of hospital length of stay as a way of reducing the cost of care. The effect of the policy on quality of care has received a lot of attention in the literature. Some of the earlier papers have ignored the endogeneity of length of stay in the readmission equation, an approach that could lead to inconsistent estimation. This study develops a statistical technique for the consistent estimation of the effect of the early discharge policy. An instrument that can be used extensively across different diagnostic groups is provided, hence solving the difficult problem of finding an instrument for length of stay. The exogeneity test in Gorgger (1990), the test for weak instruments in Staiger and Stock (1997) as well as the Hensen (1982) for over identification confirmed respectively that length of stay is endogenous the instrument is strong and the valid.
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