The presence or absence of a corpus luteum was based on endometrial
preparation protocols; that is, natural and ovulation induction cycles
were considered to mean the formation of a corpus luteum, and a hormone
replacement therapy cycle was regarded as meaning the absence of a
corpus luteum.
CP, clinical pregnancy; FET, frozen-thawed embryo transfer; LB, live
birth
a P -value < 0.05 compared with
phenotype A
b P -value < 0.05 compared with
phenotype B
c P -value < 0.05 compared with
phenotype C
d P -value < 0.05 compared with
phenotype D
e P -value < 0.05 compared with
control group
Table 3 Crude and adjusted ORs of various PCOS phenotypes for
abortion and premature delivery