Table 1.

Population Data and Procedural Information

	Ropivacaine (n = 15)	Placebo (n = 15)
Age (yr)	55 (28–65)	42 (20–58)
Sex (female/male)	4/11	6/9
Height (cm)	180 (165–185)	175 (161–183)
Weight (kg)	86 (80–100)	78 (54–104)
Minimum current via   needle (mA)	0.47 (0.38–0.65)	0.42 (0.30–0.56)
Minimum current via   catheter (mA)	0.28 (0.20–0.60)	0.30 (0.23–0.55)
Total fentanyl (µg)	250 (120–500)	200 (120–330)
Surgical   duration (min)	156 (60–242)	107 (59–168)

Values are reported as median (10th–90th percentiles) or number of subjects, as indicated.

There were no statistically significant differences between the two treatment groups.