Table 7 Diagnostic value of general symptoms in a setting with high prevalence of pneumonia

From: Diagnostic value of signs, symptoms and diagnostic tests for diagnosing pneumonia in ambulant children in developed countries: a systematic review

Index test Study nr. Pneumonia prevalence Sensitivity Specificity PPV NPV
Ill appearance 6.2 14% 79.3 38.7 17.2 92.1
6.1 16% 33.3 77.9 21.7 86.4
Fever 12 14.4% 94 36 20 97
3 35.7% 47 68 45 70
Tachycardia 1 34% 35.6 77.3 45.1 69.6
3 35.7% 51 60 68 41
  1. PPV positive predictive value, NPV negative predictive value