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Table 1 Demographic and intraoperative characteristics

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

variables Group TAP (n = 40) Group Control (n = 42) P value
Mean age, year 51.4 ± 7.4 52.1 ± 8.4  
Gender, male: female 18:22 22:20  
BMI (kg/m2) 23.6 ± 2.7 23.8 ± 2.6  
ASA I / II / III 8/28/4 7/33/2 0.903
Operation time (min) 162.7 ± 33.4 164.3 ± 30.4 0.820
Type of operation    0.995
 Right hemicolectomy 16 (40) 16 (38) /
 Left hemicolectomy 12 (30) 13 (31) /
 Anterior resection 6 (15) 7 (17) /
 Sigmoid colectomy 6 (15) 6 (14) /
Intraoperative sufentanil usage (ug) 37.7 ± 4.2 37.6 ± 4.3 0.941
Intraoperative remifentanil usage (mg) 1.0 ± 0.3 1.0 ± 0.3 0.979
  1. Note: Data are presented as mean ± SD or the number of cases or no. (%) of patients. ASA American Society of Anesthesiologists, BMI body mass index, Group TAP transversus abdominis plane block
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