Body Mass Index and Pregnancy Outcome after Assisted Reproduction Treatment

Table 2

Odds ratios (OR) and their 95% confidence intervals (CI) for the association of BMI with positive pregnancy outcome.

Studied factor	Positive pregnancy women	Negative pregnancy women	OR	95% CI	𝑃-trend
Body mass index (kg/m^2)*					0.04
<25	17	34	1.00	Ref.
25–<30	37	147	0.50	0.25–0.99
≥30	21	93	0.45	0.21–0.95
Body mass index (kg/m^2)^†
<25	17	34	1.00	Ref.
25–<30	37	147	0.50	0.25–0.99
≥30	21	93	0.45	0.20–0.99

∗Unadjusted model.
^†Model adjusted by age groups, type of infertility, number of embryo transfer, HCG days endometrial thickness, and hormonal profiles.