Table 2.

Calculated Mortality Risk for Survivors Versus Nonsurvivors for the Risk Indices Analyzed Including 30-Day VASQIP Calculator, 6-Month MMRI-R, and Four-Year Mortality Index.^a

Study	Survivor (n = 37)	Nonsurvivor (n = 10)	P Value
VASQIP	4.3 (5.5)	10.4 (5.4)	P < .003
MMRI-R	14.7 (9.5)	35.8 (15.4)	P < .001
Four-Year	48.9 (24.4)	60.9 (16.9)	P < .09

Abbreviations: VASQIP, Veterans Affairs Surgical Quality Improvement Program; MMRI-R, Minimum Data Set Mortality Risk Index-Revised.

^a Values of P < .05 indicate statistical significance.