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Table 2 Pooled likelihood ratios of sputum Gram stain in community-acquired pneumonia

From: Usefulness of sputum gram stain for etiologic diagnosis in community-acquired pneumonia: a systematic review and meta-analysis

Microorganism

Positive LR (95% CI)

Negative LR (95% CI)

S. pneumoniae

4.60 (2.72–7.79)

0.39 (0.29–0.52)

H. influenzae

21.08 (8.32–53.40)

0.23 (0.13–0.41)

S. aureus

16.27 (2.48–106.86)

0.40 (0.30–0.56)

Gram-negative bacilli

37.49 (8.83–159.16)

0.45 (0.17–1.17)

  1. Abbreviations: LR likelihood ratio, CI confidence interval
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BMC Infectious Diseases

ISSN: 1471-2334

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