TABLE 3.

Depression scores of each article included in this meta-analysis.

Author	Hamilton depression rating score	Edinburgh postnatal depression scale	Postpartum depression screening scale	Patient health questionnaire-9	Depressive patients	Visual analogue scale score	Brain-derived neurotrophic factor (ng/ml)	Complication
Akira	9.9 ± 4.1/14.4 ± 3.8/4.8 ± 1.6 (1 day)	—	—	—	—	—	—	—
Liu	—	6.0 ± 3.7/4.3 ± 3.1 (3 days)	—	—	8/2	—	—	5/3
Lv	—	4.0 ± 2.8/6.4 ± 2.1 (3 days)	—	—	2/9	—	—	3/5
Zhang	—	—	57.07 ± 13.97/71.57 ± 30.49 (4 days)	—	2/9	—	—	—
Min	—	—	—	2.68 + 0.73/3.37 + 0.4 (1 day); 2.28 + 0.61/2.92 + 0.63 (5 days)	—	2.17 ± 0.24/3.75 ± 0.42 (1 day); 1.12 ± 0.87/1.88 ± 0.01 (5 days)	26.85 ± 0.74/25.31 ± 0.51 (1 day); 27.12 ± 0.60/25.67 ± 0.74 (5 days)	8/8
Zhou	7.67 ± 2.53/10.48 ± 2.48 (5 days); 7.96 ± 2.61/11.24 ± 2.74 (10 days)	—	52.58 ± 13.36/71.34 ± 15.19 (5 days); 53.73 ± 13.28/73.41 ± 15.37 (10 days)	—	3/11	—	—	2/10
Dai	—	—	—	1.7 ± 1.6/3.2 ± 2.0 (5 days)	2/9	—	—	—
Xu	12.25 ± 4.50/18.64 ± 3.83 (1 day); 10.64 ± 4.33/16.27 ± 4.45 (3 days); 13.45 ± 5.21/17.36 ± 6.25 (7 days)	—	—	—	—	—	—	14/17
Yang	—	7.2 ± 3.9/7.2 ± 4.2 (3 days); 5.6 ± 3.9/5.7 ± 4.3 (6 weeks)	—	—	41/46 (3 days); 26/29 (6 weeks)	—	—	33/14
Mashour	—	—	—	—	24/22/18	—	—	—
Li	—	—	—	—	17/18 (1 day); 15/22 (3 days)	—	—	—
Peirong	13.2 ± 2.50/16.4 ± 2.0 (3 days); 10.5 ± 2.9/11.2 ± 3.6 (7 days); 9.5 ± 2.9/11.0 ± 3.8 (1 month); 7.5 ± 3.2/7.5 ± 3.0 (3 months)	—	—	—	—	3.4 ± 0.7/4.0 ± 0.8 (1 day); 2.7 ± 0.6/3.2 ± 0.7 (3 days); 1.3 ± 0.2/1.3 ± 0.2 (7 days)	23.1 ± 1.2/21.6 ± 1.5 (3 days); 23.5 ± 1.2/21.5 ± 1.6 (7 days); 24.1 ± 1.4/23.0 ± 1.2 (1 month); 27.1 ± 1.5/26.9 ± 1.5 (3 months)	37/40
Wang	—	—	47.44 ± 5.06/40.51 ± 4.46 (1 day)	—	—	2.5 ± 0.55/4.78 ± 1.34 (1 day)	—	0/5