Table 2.

Subgroup analysis of polypectomy group.

Parameter	FET after next menses(n = 137)	FET after 2 or 3 menstrual cycles(n = 40)	FET after >3 menstrual cycles(n = 29)	p value
Age (years)	33.00 [29.00, 38.00]	32.00 [30.00, 35.00]	30.00 [29.00, 35.00]	0.237
BMI (kg/m2)	23.70 [22.00, 26.70]	24.10 [22.00, 26.10]	22.90 [21.30, 25.70]	0.405
Gravidity	1.00 [0.00, 2.00]	1.00 [0.00, 2.00]	1.00 [0.00, 2.00]	0.739
OPU cycle
Peak E2(nmol/l)	136445.48 ± 6843.75	145739.58 ± 7109.47	14116.33 ± 6903.57	0.527
Oocyte no. retrieved	10.632 ± 6.13	11.255 ± 6.68	12.347 ± 7.93	0.425
Endometrial preparation				0.872
Natural cycle	45.98% (63/137)	47.50% (19/40)	41.38% (12/29)
Artificial cycle	54.01% (74/137)	52.5% (21/40)	58.62% (17/29)
Endometrial thickness	10.43 ± 2.54	9.80 ± 2.04	9.75 ± 2.62	0.891
ET no. Of embryoes	2.000[1.000, 2.000]	2.000 [1.000, 2.000]	2.00 [1.000, 2.000]	0.624
Development stage of the embryo				0.989
D3	71.96% (154/214)	71.18% (42/59)	71.11% (32/45)
D5	28.04% (60/214)	28.81% (17/59)	28.89% (13/45)
Good embryo no.	2.00 [1.00, 2.00]	2.00 [1.00, 2.00]	2.00 [1.00, 2.00]	0.405

Baseline characteristics of patients undergoing FET cycles after hysteroscopic polypectomy, stratified by number of menstrual cycles.