Table 3. Multivariable analysis adjusting for age, number of embryos transferred and stage of embryo development upon transfer on predictors of ART outcome, according to abnormal BMI categories in women undergoing 107.313 cycles of autologous FIV/ICSI
	Cancellation*	Nº oocytes retrieved †	Pregnancy ‡	Live birth ‡	Miscarriage ‡
Underweight BMI ≤18.4(kg/m2)	OR 1.00 (0.68 to 1.46) p=0.995	β -0.27 (-0.62 to 0.08) p=0.695	OR 1.03 (0.91 to 1.18) p=0.629	OR 1.04 (0.91 to 1.20) p=0.552	OR 0.94 (0.79 to 1.26) p=0.695
Overweight BMI 25-29.9(kg/m2)	OR 1.18 (1.05 to 1.32 p=0.005	β 0.20 (0.08 to 0.31) p=0.001	OR 1.00 (0.96 to 1.05) p=0.811	OR 1.0 (0.95 to 1.05) p=0.927	OR 1.0 (0.92 to 1.10) p=0.881
Obesity BMI ≥30(kg/m2)	OR 2.78 (2.58 to 3.01) p<0.0001	β -0.79 (-0.88 to 0.70) p<0.0001	OR 0.96 (0.93 to 1.00) p=0.025	OR 0.96 (0.93 to 0.99) p=0.039	OR 1.01 (0.95 to 1.09) p=0.693
* Results are adjusted for age and presented as odd ratios (95% confidence interval) and p-value. † Results are adjusted for age and presented as coefficient β of medians (95% confidence interval) and p-value. ‡ Results are adjusted for age, number of embryos transferred and embryo stage at embryo transfer and presented as odd ratios (95% confidence interval) and p-value.