Forest plot of risk ratios for exacerbations per patient per year treated with macrolides compared with the control.

<p>Forest plot of risk ratios for exacerbations per patient per year treated with macrolides compared with the control.</p

Forest plot assessing risk ratio of hospitalization among COPD patients treated with macrolides compared with the control.

<p>Forest plot assessing risk ratio of hospitalization among COPD patients treated with macrolides compared with the control.</p

Forest plot of risk ratios for total number of patients with one or more exacerbations treated with macrolides compared with the control.

<p>Forest plot of risk ratios for total number of patients with one or more exacerbations treated with macrolides compared with the control.</p

Forest plot of odds ratios for drug adverse effects in COPD patients treated with macrolides compared with the control.

<p>Forest plot of odds ratios for drug adverse effects in COPD patients treated with macrolides compared with the control.</p

Forest plot of comparing the mean differences (MD) in change of SGRQ total score among COPD patients treated with macrolides compared with the control.

<p>Forest plot of comparing the mean differences (MD) in change of SGRQ total score among COPD patients treated with macrolides compared with the control.</p