Table 2.

Primary and Secondary Outcomes of Allylestrenol versus Dydrogesterone after PSM

Variables	Dydrogesterone (N = 989)	Allylestrenol (N = 989)	P-value
ART outcomes (%)
Clinical pregnancy	526 (53.2)	529 (53.5)	0.928
Non-pregnancy	346 (35.0)	397 (40.1)	0.020*
Biochemical pregnancy	117 (11.8)	63 (6.4)	< 0.001*
Pregnancy outcomes (%)
Live birth	422 (42.67)	416 (42.06)	0.820
Abortion	34 (3.44)	36 (3.64)	0.903
Embryonic demise	55 (5.56)	59 (5.97)	0.772
Labor induction	15 (1.52)	18 (1.82)	0.725
Ectopic pregnancy (%)	5 (0.5)	9 (0.9)	0.284
Multiple gestations (%)	111 (26.3)	70 (16.8)	0.001*

ART assisted reproductive techniques, PSM propensity score matching

^*P < 0.05