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Table 1.

Characteristics of the randomized controlled trials in this review.

Study Country THA approach Sample size (n(M)) Age (mean ± SD)
T C T C
Aliste et al. (9) Chile PA 20 (7) 20 (7) 56.8 ± 13.0 59.6 ± 9.2
Bravo et al. (27) Chile PLA 30 (8) 30 (13) 60.6 ± 11.1 59.5 ± 10.0
Carella et al. (28) Belgium PLA 51 (24) 51 (21) 68.2 ± 10.5 64.8 ± 12.7
Choi et al. (29) South Korea PA 27 (14) 27 (16) 60.5 ± 18.4 61.9 ± 14.9
Domagalska et al. (14) Poland PA 239 (140) 237 (122) 66.0 ± 5.8 66.0 ± 5.1
Et et al. (12) Turkey PLA 30 (13) 29 (13) 68.8 ± 11.1 68.5 ± 13.1
Iglesias et al. (30) Argentina PLA 20 (9) 20 (12) 60.6 ± 10.4 61.9 ± 8.8
Kukreja et al. (15) USA PA 56 (26) 56 (22) 58.5 ± 14.8 62.1 ± 11.3
Vamshi et al. (11) India PA 30 (20) 30 (22) 43.2 ± 13.6 41.0 ± 12.7
Ye et al. (13) China PLA 40 (21) 40 (19) 52.1 ± 10.8 52.3 ± 12.8
Zheng et al. (5) South Korea PLA 25 (15) 27 (16) 60.0 ± 10.9 63.0 ± 11.7

C, control group; GA, general anesthesia; M, male; PA, posterior approach; PAI, the periarticular anesthetic infiltration; PCA, patient-controlled analgesia; PENG, the pericapsular nerve group block; PLA, posterolateral approach; SA, spinal anesthesia; SFIB, the suprainguinal fascia iliaca block; T, treatment group; THA, total hip arthroplasty.