Table 3

Diagnostic performance of the prediction model for different risk thresholds for invasive bacterial infection

Risk
thresholds (%)
N below threshold (%)N above threshold (%)Sensitivity
(95% CI)
Negative LR
(95% CI)
Specificity
(95% CI)
Positive LR
(95% CI)
0.15495 (33.8)10 773 (66.2)0.97 (0.93 to 0.99)0.09 (0.03 to 0.23)0.34 (0.33 to 0.35)1.5 (1.4 to 1.5)
0.28461 (52.0)7807 (48.0)0.93 (0.87 to 0.96)0.14 (0.08 to 0.26)0.52 (0.52 to 0.53)1.9 (1.9 to 2.1)
0.259416 (57.9)6852 (42.1)0.90 (0.84 to 0.95)0.17 (0.10 to 0.28)0.58 (0.58 to 0.59)2.2 (2.0 to 2.3)
0.512 200 (75.0)4068 (25.0)0.76 (0.67 to 0.83)0.32 (0.24 to 0.44)0.75 (0.75 to 0.76)3.1 (2.8 to 3.4)
1.014 224 (87.4)2044 (12.6)0.59 (0.50 to 0.67)0.47 (0.39 to 0.58)0.88 (0.87 to 0.88)4.8 (4.1 to 5.6)
2.015 279 (93.9)989 (6.1)0.48 (0.39 to 0.57)0.55 (0.47 to 0.65)0.94 (0.94 to 0.95)8.4 (6.9 to 10)
515 831 (97.3)437 (2.7)0.36 (0.37 to 0.45)0.65 (0.57 to 0.74)0.98 (0.97 to 0.98)15 (12 to 19)
  • LR, likelihood ratio.