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Fig. 4 | Respiratory Research

Fig. 4

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. 4

Risk ratio values for Moraxella catarrhalis presence at exacerbation. Shown as risk ratio for M. catarrhalis presence at first exacerbation, given M. catarrhalis presence or absence at a the screening visit or b any stable visit within 90 days before the first exacerbation. c Risk ratio for M. catarrhalis presence at second exacerbation, given M. catarrhalis presence or absence at any stable visit within 90 days before the second exacerbation (Full cohort, Year 1 and Year 2). a p-value = 0.03 for PCR; b p-value < 0.01 for PCR; c p-value = 0.03 for culture. Other p-values not statistically significant. 95% CI, 95% confidence interval

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