Association between Intraoperative Early Warning Score and Mortality and In-Hospital Stay in Lower Gastrointestinal Spontaneous Perforation

Table 4

Multivariate logistic regression analysis of the preoperative SOFA score and intraoperative BE and the lactate level for in-hospital death and the length of hospital stay.

	In-hospital death		Length of hospital stay
	Crude OR (95% CI), value	Adjusted OR (95% CI), value	Crude linear regression coefficient (95% CI), value	Adjusted linear regression coefficient (95% CI), value
Preoperative SOFA score^b	1.17 (1.03–1.34),	1.18 (1.00–1.35),	5.61 (3.04–8.18),	5.60 (2.86–8.34),
Start BE^a	0.85 (0.75–0.96),	0.80 (0.67–0.96),	−0.77 (−3.53–1.99),	0.85 (−1.95–3.65),
End BE^a	0.85 (0.71–1.02),	0.83 (0.68–1.02),	−0.24 (−3.55–3.07),	0.93 (−2.28–4.16),
Minimum BE^a	0.77 (0.66–0.92),	0.69 (0.54–0.89),	−1.03 (−4.36–2.29),	0.48 (−2.8–3.79),
Start-to-end delta BE^a	1.26 (1.02–1.56),	1.30 (1.01–1.68),	2.35 (−3.11–7.81),	0.55 (−6.01–4.90),
Start lactate^a	1.25 (1.03–1.53),	1.29 (1.03–1.61),	5.44 (−0.22 to −11.10),	3.18 (−2.57–8.95),
End lactate^a	1.04 (0.95–1.14),	1.03 (0.93–1.15),	2.42 (0.12–4.71),	1.41 (−0.89–3.71),
Max lactate^a	1.00 (0.95–1.06),	0.99 (0.94–1.05),	1.19 (0.19–2.11),	0.72 (−0.25–1.69),
Start-to-end delta lactate^a	0.89 (0.60–1.30),	0.85 (0.52–1.39),	2.33 (−0.56–5.22),	−1.29 (−1.54–4.12),

^aAdjusted for age, sex, preoperative SOFA score, and Charlson comorbidity index. ^bAdjusted for age, sex, and Charlson comorbidity index. SOFA, sepsis-related organ failure assessment; OR, odds ratio; 95% CI, 95% confidence interval; BE, base excess.