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Table 2 Comparison of clinical outcomes between the groups

From: Analgesic efficacy of postoperative bilateral, ultrasound-guided, posterior transversus abdominis plane block for laparoscopic colorectal cancer surgery: a randomized, prospective, controlled study

  Group TAP (n = 40) Group Control (n = 42) P value
Tramadol consumption within 24 h after surgery (mg) a 0 (0, 87.5) 100 (100, 200) < 0.001
Time to first requirement of rescue tramadol muscular injection (min)a 1440(285,1440.00) 50(30, 90) < 0.001
time to flatus (h) 32.4 ± 6.2 39.0 ± 8.7 < 0.001
time to mobilization (h) 27.9 ± 7.8 33.9 ± 8.2 0.001
length of hospital stay (d) 3.4 ± 0.5 4.0 ± 0.6 < 0.001
  1. Note: Data are presented as mean ± SD, unless otherwise indicated. aData are presented as median and quartiles, and analyzed by Mann-Whitney U test. Group TAP = transversus abdominis plane block
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