Comparison between Tramadol and Butorphanol for Treating Postoperative Catheter-Related Bladder Discomfort: A Randomized Controlled Trial

Table 1

Descriptive variables for the tramadol control group and butorphanol group.

	Group butorphanol (n = 30)	Group control (n = 30)	value
Age	58.1 ± 16.5	61.4 ± 12.7	0.380
Weight (kg)	66.0 ± 12.1	64.8 ± 9.4	0.666
Height (cm)	156.8 ± 33.3	166.8 ± 6.0	0.116
BMI (kg/m^2)	22.3 ± 3.6	23.2 ± 2.6	0.932
Time length of anesthesia (min)	89.1 ± 31.7	80.7 ± 24.4	0.259
ASA (I/II)	21/9	19/11	0.206