Table 2

Diagnostic value of high Shock Index >95th centile for serious illness, n=5622

OR
(95% CI)
aOR*
(95% CI)
Sensitivity
(95% CI)
Specificity
(95% CI)
Positive LR
(95% CI)
Negative LR
(95% CI)
Number needed to detect a disease (N)
SBI, n=4611.9 (1.6 to 2.3)1.6 (1.3 to 1.9)0.10 (0.07 to 0.13)0.95 (0.94 to 0.95)1.8 (1.4 to 2.5)0.95 (0.93 to 0.98)20
IBI, n=462.6 (1.7 to 3.4)1.5 (0.6 to 2.4)0.13 (0.05 to 0.26)0.95 (0.94 to 0.95)2.4 (1.1 to 5.1)0.92 (0.82 to 1.03)12.5
ILSI, n=2033.1 (2.7 to 3.5)2.5 (2.0 to 2.9)0.15 (0.10 to 0.20)0.95 (0.94 to 0.95)2.8 (2.0 to 4.0)0.90 (0.85 to 0.95)10
ICU admission, n=692.6 (1.9 to 3.3)2.2 (1.4 to 2.9)0.13 (0.06 to 0.23)0.95 (0.94 to 0.95)2.4 (1.3 to 4.5)0.92 (0.84 to 1.01)12.5
  • *Adjusted for age, sex, referral, comorbidity and temperature.

  • aOR, adjusted OR; IBI, invasive bacterial infection; ICU, intensive care unit; ILSI, immediate life-saving intervention; LR, likelihood ratio; SBI, serious bacterial infection.