Table 2.

Unadjusted and multivariate analyses of outcomes stratified by health care-associated infection (HCAI) and community-acquired infection (CAI) (n = 1,096)

Outcome	Unadjusted analysis			Multivariate analysisa
	HCAI (n = 534)	CAI (n = 562)	P value
Hospital length of stay (days)				2.11 (0.75-3.48)b
Median (IQR)	5 (1, 73)	4 (1, 103)	<0.0001c
Mean ± SD	8.11 ± 8.46	6.39 ± 9.71	<0.0001d
No. (%) of patients with in-hospital mortality	15 (2.8)	6 (1.1)	<0.05e	1.58 (0.58–4.29)f
No. (%) of patients with readmission/death within 30 days	136 (25.5)	67 (11.9)	<0.05e	1.08 (0.66–1.76)f

^aAdjusted for variables in Table 1.

^bRegression mean difference (95% CI); P < 0.05; smearing retransformed mean = 2.24 (0.87–3.61).

^cWilcoxon rank sum test.

^dt test on log-transformed length of stay.

^eChi-square test.

^fAdjusted odds ratio (95% CI).