Table 2.

Comparison of two groups

Characteristic	P group (n = 18)	L group (n = 12)	p value
Age (years)	69.7 ± 7.3	72.4 ± 10.2	0.305
Sex (M, F)	11, 7	6, 6	0.632
Height (cm)	160.8 ± 9.3	158.7 ± 9.5	0.662
Body weight (kg)	63.5 ± 13.1	60.9 ± 9.7	0.415
Body mass index (kg/m2)	24.6 ± 3.6	24.2 ± 3.5	0.787
Blood loss (ml)	69.0 ± 83.8	32.4 ± 35.0	0.095
Pre-ope Hb (g/dl)	13.6 ± 1.9	14.2 ± 1.1	0.439
First post-ope Hb (g/dl)	12.1 ± 2.1	12.6 ± 1.5	0.545
Change in Hb pre-ope to first post-ope (g/dl)	− 1.6 ± 1.0	− 1.6 ± 0.9	0.983
Time in operating room (min)	111.9 + 25.0	77.5 + 22.2	< 0.01
Length of stay (days)	16.0 + 4.2	16.8 + 5.1	0.573

All values are in mean ± standard deviation

pre-ope preoperative, post-ope postoperative