Table 1.

Results of tests of normality on the descriptive variable data

Outcome	Kolmogorov-Smirnov			Shapiro-Wilk
	Statistic	df	Sig.	Statistic	df	Sig.
Age (years)
Survived	0.074	176	0.021 (S)	0.980	176	0.011 (S)
Expired	0.104	37	0.200 (NS)	0.959	37	0.187 (NS)
Time to presentation (h)
Survived	0.060	176	0.200 (NS)	0.976	176	0.004 (S)
Expired	0.156	37	0.023 (S)	0.949	37	0.088 (NS)
PRISM-III score
Survived	0.152	176	0.000 (S)	0.955	176	0.000 (S)
Expired	0.168	37	0.010 (S)	0.924	37	0.015 (S)
Duration to laparotomy (h)
Survived	0.212	176	0.000 (S)	0.573	176	0.000 (S)
Expired	0.265	37	0.000 (S)	0.713	37	0.000 (S)
Operative duration (min)
Survived	0.069	176	0.038 (S)	0.987	176	0.094 (NS)
Expired	0.098	37	0.200 (NS)	0.974	37	0.531 (NS)

df, degree of freedom; NS, not significant; S, significant; PRISM-III, Pediatric Risk of Mortality III