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Table 2 Characteristics of studies included in meta-analysis

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

Author Year Country Score Treatment TAPB_n (M/F) TAPB_age# (years) QLB_n (M/F) QLB_age# (years) Quality Outcomes
Baytar 2019 Turkey 4 TAPB vs QLB 53 (11/42) 48.12 ± 12.42 54 (15/39) 46.42 ± 16.57 HQ b f g
Yousef 2018 Egypt 5 TAPB vs QLB 30 (0/30) 50.70 ± 6.8 30 (0/30) 56.5 ± 6.97 HQ a b c d e f
Kumar 2018 India 4 TAPB vs QLB 35 (15/20) 38.34 ± 11.59 35 (15/19) 39.20 ± 11.64 HQ a b d f
Öksüz 2017 Turkey 3 TAPB vs QLB 25 (21/4) 3.02 ± 1.82 25 (21/4) 3.13 ± 0.20 LQ e f
Blanco 2016 Arab 3 TAPB vs QLB 38 (0/38) NA 38 (0/38) NA LQ a
Verma 2019 India 6 TAPB vs QLB 30 (0/30) 28 ± 3 30 (0/30) 30 ± 3 HQ b d f
Ipek 2019 Turkey 3 TAPB vs QLB 29 (19/10) 4.16 ± 2.55 35 (28/7) 3.89 ± 3.26 LQ e f g
Shan 2019 China 3 TAPB vs QLB 30 (0/30) 30 ± 3 30 (0/30) 29 ± 6 LQ c f
Deng 2019 China 6 TAPB vs QLB 34 (12/22) 53.5 ± 10.6 34 (14/20) 51.1 ± 13.8 HQ b c f
Fu 2019 China 4 TAPB vs QLB 30 (NA) 71.8 ± 5.8 30 (NA) 72.2 ± 6.9 HQ b f
Han 2017 China 4 TAPB vs QLB 38 (24/14) 27.8 ± 3.9 39 (20/19) 26.3 ± 3.2 HQ b c f
He 2018 China 2 TAPB vs QLB 36 (20/16) 67.3 ± 2.3 36 (19/17) 67.7 ± 2.1 LQ e f
Li G 2018 China 5 TAPB vs QLB 40 (0/40) 31 ± 4 40 (0/40) 30 ± 5 HQ b c f
Li N 2019 China 3 TAPB vs QLB 30 (0/30) 42.10 ± 5.26 30 (0/30) 41.07 ± 4.75 LQ b e f
Ma 2019 China 3 TAPB vs QLB 30 (17/13) 55. 2 ± 4. 4 30 (16/14) 53.1 ± 4.6 LQ e
Ren 2018 China 3 TAPB vs QLB 82 (44/38) 45.7 ± 15.2 78 (40/38) 46.3 ± 15.1 LQ b c
Xia 2018 China 4 TAPB vs QLB 30 (15/15) 48 ± 8 30 (12/18) 46 ± 11 HQ f
Yang 2019 China 3 TAPB vs QLB 30 (0/30) NA 30 (0/30) NA LQ a b
Yang 2019 China 5 TAPB vs QLB 30 (0/30) 38.5 ± 14.8 30 (0/30) 43.9 ± 15.04 HQ b c e f
Ye 2019 China 4 TAPB vs QLB 28 (12/16) 48.9 ± 2.1 30 (14/16) 50.3 ± 2.8 HQ c f
Zhu 2019 China 3 TAPB vs QLB 39 (20/19) 68.8 ± 3.4 39 (18/21) 69.1 ± 3.2 LQ e f
Zhu 2018 China 3 TAPB vs QLB 30 (0/30) 52 ± 6 30 (0/30) 51 ± 7 LQ b e f
  1. #: mean ± standard deviation
  2. TAPB transversus abdominis plane block, QLB quadratus lumborum block, VAS visual analog scale, HQ high-quality, LQ low-quality, NA unavailable
  3. a: morphine consumption; b: VAS score at 24 h postoperatively; c: fentanyl consumption; d: duration of postoperative analgesia; e: the number of patients requiring analgesia postoperatively; f: operative time; g: duration of anesthesia