Table 1.

Characteristics of the study group.

	THA	TKA
Sex
Male	90	32
Female	145	120
Laterality (L/R)	120/115	72/80
ASA score
ASA 1	14	10
ASA 2	154	94
ASA 3	67	48

ASA = American Society of Anesthesiologists; L = left; R = right; THA = total hip arthroplasty; TKA = total knee arthroplasty.