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Table 3 Overall results of the meta-analysis

From: Effects of transversus abdominis plane block versus quadratus lumborum block on postoperative analgesia: a meta-analysis of randomized controlled trials

Outcomes WMD/RR (95%CI) P I2
Morphine consumption (mg)
 Overall 3.893 (2.053, 5.733) < 0.001 72.7
 Operation types
  Abdominal surgery 2.400 (1.825, 2.975) < 0.001 NA
  Pelvic surgery 4.731 (2.634, 6.829) < 0.001 44.5
 Quality
  High-quality 3.205 (1.283, 5.127) 0.001 76.2
  Low-quality 6.443 (0.098, 12.788) 0.047 72.2
Fentanyl consumption (μg)
 Overall 23.815 (15.521, 32.109) < 0.001 96.0
 Operation types
  Abdominal surgery 14.077 (7.412, 20.742) < 0.001 92.3
  Pelvic surgery 34.808 (14.079, 55.537) 0.001 96.5
 Quality
  High-quality 26.576 (13.594, 39.558) < 0.001 96.9
  Low-quality 16.264 (7.527, 25.000) < 0.001 73.3
Operative time
 Overall 0.324 (−0.805, 1.454) 0.573 0.0
Duration of anesthesia (min)
 Overall -2.139 (−14.423, 10.146) 0.733 80.8
VAS score at 24 h postoperatively
 Overall 0.459 (0.118, 0.801) 0.008 94.8
 Operation types
  Abdominal surgery 0.224 (−0.033, 0.480) 0.088 80.1
  Pelvic surgery 0.671 (0.103, 1.240) 0.021 95.4
 Quality
  High-quality 0.576 (0.048, 1.104) 0.032 96.3
  Low-quality 0.218 (−0.019, 0.455) 0.071 66.1
Duration of postoperative analgesia
 Overall -21.882 (−59.774, 16.010) 0.258 100.0
 Operation types
  Abdominal surgery -3.400 (−4.038, −2.762) < 0.001 NA
  Pelvic surgery −31.125 (−78.851, 16.600) 0.201 100.0
Number of patients requiring analgesia postoperatively
 Overall 2.618 (2.040, 3.361) < 0.001 13.2
Adverse reactions
Dizziness
 Overall 2.691 (1.653, 4.382) < 0.001 0.0
Nausea and vomiting
 Overall 1.918 (0.805, 4.571) 0.141 50.9
 Quality
  High-quality 4.100 (1.932, 8.699) < 0.001 0.0
  Low-quality 0.417 (0.054, 3.239) 0.403 70.9
  1. CI confidence interval, RR, risk ratio, WMD weighted mean difference, VAS visual analog scal, NA unavailable