Drivers of hospitalization cost after craniotomy for tumor resection: creation and validation of a predictive model

Table 2 Inflation-adjusted cost data

a.
Total				Derivation cohort				Validation cohort
Intracranial tumors
Mean	95% CI	Median	IQR	Mean	95% C.I.	Median	IQR	Mean	95% C.I.	Median	IQR
31,780	31,518-32,041	24,504	4,265-44,743	32,073	31,697-32,450	24,693	4,258-45,128	31,486	31,122-31,849	24,327	4,210-44,444
b.
Unfavorable discharge cohort				Favorable discharge cohort				P value
Mean	95% C.I.	Median	IQR	Mean	95% C.I.	Median	IQR
41,446	40,898-41,993	31,208	21,403-47,662	26,504	26,292-26,716	21,735	15,514-31,481	<0.0001

95% CI: 95% confidence intervals; IQR: interquartile range.
All cost values are inflation adjusted and have been converted to 2010 price values based on the consumer index.

ISSN: 1472-6963