Table 4.

Unadjusted analysis of duration of operation and postoperative hospital stay

	≤65 years			>65 years			p
	Mean-STD	Mean	Mean + STD	Mean-STD	MW	Mean + STD
Duration of operation [min]	33.1	51.0	78.6	33.6	52.2	81.2	<0.001
Post-op. hospital stay [days]	1.0	1.6	2.6	1.1	1.8	3.1	<0.001