Table 3 Predictive capacity of the three multiple binomial logistic regression analysis to predict 30-day mortality

Overall predictive capacity

85.4 %

82.3 %

76.0 %

Area under curve; p-value

0.79; p < 0.001

0.74; p < 0.001

0.59; p = 0.03

Sensitivity (95 % CI)

64 (43–82)

56 (35–76)

22 (9–42)

Specificity (95 % CI)

93 (84–98)

92 (83–97)

96 (89–99)

Positive likelihood ratio (95 % CI)

9.1 (3.7–22.2)

6.6 (2.9–15.4)

5.4 (1.5–20.1)

Negative likelihood ratio (95 % CI)

0.4 (0.2–0.7)

0.5 (0.3–0.8)

0.8 (0.7–1.0)

Positive predicted value (95 % CI)

76 (53–92)

70 (46–88)

67 (30–93)

Negative predicted value (95 % CI)

88 (78–94)

86 (76–93)

77 (67–85)