Table 2.

Demographics of the included patients ^a

	TKA (n = 129)	THA (n = 77)
Age	65 ± 10.53	64 ± 13.82
BMI	30.7 ± 5.7	28.5 ± 7.2
Spinal anesthesia	61%	57%
General anesthesia	39%	43%
ASA grading
I	0%	1%
II	15%	21%
III	79%	73%
IV	6%	5%

ASA, American Society of Anesthesiologists Physical Status; BMI, body mass index; THA, total hip arthroplasty; TKA, total knee arthroplasty.

^aData are expressed as mean ± SD.