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. Author manuscript; available in PMC: 2009 Apr 1.
Published in final edited form as: Anesthesiology. 2008 Apr;108(4):703–713. doi: 10.1097/ALN.0b013e318167af46

Table 2.

Population Data, Perineural Catheter Details, and Surgical Information

Ropivacaine
Group
(n = 25)
Placebo
Group
(n = 25)
Age, yr 66 (60–70) 64 (60–69)
Sex, F/M 14/11 15/10
Height, cm
  Male patients 180 (175–188) 179 (175–183)
  Female patients 163 (157–170) 169 (158–170)
Weight, kg
  Male patients 108 (82–115) 88 (75–119)
  Female patients 82 (73–87) 73 (68–87)
Body mass index, kg/m2 31 (27–33) 28 (24–32)
ASA physical status II (II–II) II (II–II)
Minimum needle current, mA 0.28 (0.20–0.31) 0.30 (0.24–0.31)
Intraoperative fentanyl (µg) 250 (100–250) 250 (175–250)
Intraoperative morphine, mg 5 (2–10) 5 (2–8)
Catheter insertion to randomization, h 23 (21–23) 23 (21–23)
Surgery duration, min 107 (100–132) 116 (112–134)
Tourniquet duration, min 100 (96–112) 108 (102–120)

Values are reported as median (25th–75th percentiles).

ASA = American Society of Anesthesiologists.