Table 1.

Hormones and pregnancy in different body mass index groups in natural cycle pregnancy patients ≤35 years old

Grouping	Number of cases	HCG day E2	HCG day LH	HCG day P	Pregnancy condition
					Not pregnant	Pregnant
Normal weight	440	1105.50 (808.83 ~ 1426.75)	34.34 (19.34 ~ 54.48)	2.42 (1.70 ~ 3.16)	376 (85.45%)	64 (14.55%)
Overweight	178	1017.00 (695.93 ~ 1347.08)	29.42 (16.96 ~ 50.87)	2.23 (1.72 ~ 3.03)	159 (89.33%)	19 (10.67%)
Obesity	197	927.30 (696.10 ~ 1201.00)*	25.32 (14.14 ~ 43.05)*	2.29 (1.67 ~ 2.91)	168 (85.28%)	29 (14.72%)
Statistic quantity		H = 16.571	H = 17.903	H = 1.534	χ2 = 1.812
Parameters		p < 0.001	p < 0.001	p = 0.464	p = 0.404

*P < 0.05