Marginal costing methods highlight the contributing cost of comorbid conditions in Medicare patients: a quasi-experimental case–control study of ischemic stroke costs

Table 2 Rehabilitation services Medicare costs for 2004 stroke cohort and Matched controls ^†

	Overall	2004 Stroke	2004 Controls
	(n = 8928)	(n = 5952)	(n = 2976)	p-value*
Total Medicare payments	21,220 (28267)	27,329 (23913)	18,165 (29745)	<0.0001
Estimated total Medicare payments^#		27,330	18,276	<0.0001
1-year marginal cost of stroke services		$9,054
Total rehabilitation services payments	1,968 (5887)	3,735 (8245)	1,084 (3958)	<0.0001
1-year marginal cost of stroke rehabilitation services		$2,651

^†All payments are in 2004 US$ and are reported as mean (SD); payments have been rounded to the nearest dollar.
*p-values for univariate comparisons were calculated using non-parametric Wilcoxon Scores for continuous measures.
^#p-values for estimated payments were calculated using multivariable Log linked Gamma Distributed Generalized Linear Model.

ISSN: 1478-7547