Table 1.

Profile of the two groups

Characteristic	Group 1 (n = 100)	Group 2 (n = 100)
Op. (unilateral/bilateral)	91/9	79/21
Gender (male/female)	13/87	11/89
Age (years)*	58.5 ± 9.1 (39–80)	59.2 ± 8.4 (42–78)
Body weight (kg)*	47.1 ± 6.4 (38–74)	48.3 ± 5.7 (40–71)
Preoperative Hb (g/dl)*	10.8 ± 1.2 (8.3–14.4)	10.2 ± 1.6 (7.9–14.7)
Preoperative PT (s)*	11.7 ± 0.8 (10.5–12.8)	11.6 ± 0.8 (10.4–13.2)

* Values given as mean ± standard deviation (range)