Preoperative hospital length of stay as a modifiable risk factor for mediastinitis after cardiac surgery

Table 3 Incidence and risk of mediastinitis according to preoperative length of stay

Covariate	N	Cases of mediastinitis (%)	Adjusted OR (95% CI)
Preoperative length of stay:
0-3 days	5080	71 (1.4)	Reference
4-7 days	876	17 (1.9)	1.39 (0.81-2.37)
>7days	589	20 (3.3)	2.43 (1.47-4.02)

ISSN: 1749-8090