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Fig. 3 | Respiratory Research

Fig. 3

From: Sputum sample positivity for Haemophilus influenzae or Moraxella catarrhalis in acute exacerbations of chronic obstructive pulmonary disease: evaluation of association with positivity at earlier stable disease timepoints

Fig. 3

Risk ratio values for Haemophilus influenzae presence at exacerbation. Shown as risk ratio for H. influenzae presence at first exacerbation, given H. influenzae presence or absence at a the screening visit or b any stable visit within 90 days before the first exacerbation. c Risk ratio for H. influenzae presence at second exacerbation given H. influenzae presence or absence at any stable visit within 90 days before the second exacerbation (Full cohort, Year 1 and Year 2). a p-value < 0.001 for culture and PCR; b p-value < 0.0001 for culture and PCR; c p-value < 0.001 for PCR. Other p-values not statistically significant. 95% CI, 95% confidence interval

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