TABLE 2.

Results of pairwise meta-analysis.

Interven-tions	Included studies	OR/MD(95%CI)	P	Z	P	I2 (%)	Tau2
Ovulation rate
KT + LE vs LE	5	3.52(2.06, 6.04)	0.0000	4.59	0.94	0
ZZ + LE vs LE	2	8.30(2.76, 25.00)	0.0002	3.76	0.96	0
XJ + LE vs LE	1	20.24(2.55, 160.32)	0.004	2.85
YY + LE vs LE	1	1.80(0.39, 8.32)	0.45	0.75
DK + LE vs LE	3	4.06(2.09, 7.91)	0.0000	4.12	0.79	0
Pregnancy rate
KT + LE vs LE	9	2.41(1.80, 3.22)	0.0000	5.94	0.81	0
ZZ + LE vs LE	2	1.98(1.06, 3.72)	0.03	2.13	0.98	0
YY + LE vs LE	1	1.41(0.45, 4.45)	0.56	0.58
DK + LE vs LE	3	3.76(2.15, 6.60)	0.0000	4.62	0.99	0
Endometrial thickness on the follicular maturity day
KT + LE vs LE	14	2.27(1.70, 2.84)	0.0000	7.84	0.0000	94	0.97
ZZ + LE vs LE	1	2.23(1.56, 2.90)	0.0000	6.49
XJ + LE vs LE	2	3.35(3.08, 3.62)	0.0000	24.14	0.60	0	0.00
BL + LE vs LE	1	1.16(0.38, 1.94)	0.004	2.91
DK + LE vs LE	3	1.63(0.58, 2.68)	0.002	3.05	0.0000	91	0.77