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. 1993 Feb;17(1):25-36.
doi: 10.1007/BF01000584.

Development of a scalar hospital-specific severity of illness measure

M D Rosko  1 , C E Carpenter
Affiliations

Development of a scalar hospital-specific severity of illness measure

M D Rosko et al. J Med Syst. 1993 Feb.

Abstract

Cost-function analysis of hospitals has been criticized for not including severity adjustments. We tested a scalar hospital-specific severity index, derived from Admission MedisGroup Scores. Alternative versions (i.e., linear/nonlinear) of the index were evaluated by estimating cost functions on a sample of 201 Pennsylvania hospitals. The scalar index was a strong predictor of costs. The results also suggest that the omission of a severity variable in a hospital cost function may cause a specification error.

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