Figure 2
From: Secular trend and risk factors of 30-day COPD-related readmission in Beijing, China
Gender-specific trends in 30-day COPD readmission rates during 2012–2017. ORs (95% CIs) for change in readmission rates per year were calculated using logistic regression models. Covariates included age, sex (for total population), hospital level, Charlson index, length of hospital stay, and use of mechanical ventilation at index admission.
