2.

染色体多态亚组和对照组一般情况比较

Comparison of baseline characteristics between couples with chromosomal polymorphisms and the control group

Factors	Chromosomal polymorphism group			Control group	P
	Inv (1, 9), Y group	D/G genomes group	(1, 9, 16)qh+ group
No. of cycles	39	61	39	1006
Female age (year)	31.51±4.51	31.72±3.83	31.82±3.66	31.06±3.94	0.352
Female BMI (kg/m2)	21.90±2.83	20.98±2.91	21.92±2.69	21.23±2.77	0.173
Infertility duration	3.54±2.84	4.61±3.34	3.97±2.48	3.89±2.86	0.230
Type of infertility					0.137
Primary infertility	21 (53.8%)	20 (51.3%)	43 (70.5%)	563 (56.0%)
Secondary infertility	18 (46.2%)	19 (48.7%)	18 (29.5%)	443 (44.0%)
Basal FSH (U/L)	5.54±1.17	5.41±1.33	5.74±2.10	5.63±1.55	0.676
Cause of infertility					0.845
Female factor	20(51.3%)	30 (49.2%)	21 (53.8%)	505 (50.2%)
Male factor	10 (25.6%)	11 (18.0%)	10 (25.6%)	217(21.6%)
Multiple factor	9 (23.1%)	20 (32.8%)	8 (20.6%)	284 (28.2%)