Fig. 4
From: Healthcare exposures and associated risk of endocarditis after open-heart cardiac valve surgery
Hazard ratios for PVE based on multivariable Cox regression model. Hazard ratios for PVE after invasive procedures calculated for 90 day after the invasive procedure. n = 23,720. Bonferroni corrected critical p-value for multiple comparisons was 0.0022, and 95% confidence interval was Bonferroni adjusted. Index surgery after 2008 indicates after July 2008 (at the time of change in Australian antibiotic prescribing guidelines). CABG, coronary artery bypass surgery; COPD, chronic obstructive pulmonary disease; NA, not applicable; PVE, post cardiac valve surgery endocarditis