Table 4.

The predictors for pericardial effusion (comparison within groups).

P value	No. PE & intraoperative PE	No. PE & postoperative PE	Intraoperative PE & postoperative PE
Female sex	0.039	0.228	0.278
Hospital stay	0.039	0.161	0.012
Intraoperative time	0.024	0.338	0.115
Combined procedures	0.004	0.142	0.333
Changes in sinus rhythm	0.015	0.033	0.584
Retrieval	0.003	0.980	0.123