From: A model for predicting bacteremia in patients with community-acquired pneumococcal pneumonia: a retrospective observational study
Number of risk factors
Bacteremia
No Bacteremia
Sensitivity
Specificity
0
8 (17.4%)
174 (50.7%)
1.00
–
≥ 1
38 (82.6%)
169 (49.3%)
0.83
0.50
≥ 2
33 (71.7%)
75 (21.9%)
0.74
0.78
≥ 3
11 (23.9%)
9 (2.6%)
0.24
0.97
4
2 (4.3%)
0.043