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. 2022 Nov 28;12:20473. doi: 10.1038/s41598-022-24649-w

Table 3.

Univariable and Multivariable logistic regression (EP vs Eutopic pregnancy) in IUI, IVF/ICSI.

Variable Univariable Multivariable
OR (95% CI) p value OR (95% CI) p value
Female age 1.01 (0.97–1.06) 0.543
Female BMI 0.98 (0.93–1.03) 0.457
Smoking 1.20 (0.85–1.70) 0.299
Years of infertility 1.00 (0.98–102) 0.829
Primary infertility 0.45 (0.32–0.65)  < 0.001
Previous ectopic pregnancies 0.63 (0.23–1.72) 0.370
Basal FSH 0.91 (0.84–0.98) 0.012 0.90 (0.84–0.97) 0.010
Basal AMH 0.93 (0.85–1.02) 0.124
AFC 0.98 (0.95–1.01) 0.119
Positive history for pelvic adhesionsa 2.26 (1.52–3.37)  < 0.001 2.24 (1.50–3.37)  < 0.001
Uterine fibroids 1.47 (0.97–2.25) 0.072
Indication to treatment
Male factor 0.70 (0.49–1.01) 0.059
Tubal factor 1.37 (0.86–2.18) 0.181
Endometriosis 2.04 (1.09–3.82) 0.026
Unexplained 1.14 (0.70–1.86) 0.611
Male and female factor 0.89 (0.52–1.50) 0.658
Ovulation disorder 0.99 (0.36–2.70) 0.984
Diminished ovarian reserve 0.92 (0.49–1.72) 0.798
Multiple female factors 1.35 (0.55–3.33) 0.518
Procedures
Fresh ET 1
Frozen ET 0.73 (0.48–1.10) 0.133
Frozen oocytes 0.75 (0.23–2.39) 0.628
IUI 1.35 (0.70–2.62) 0.374

A minus symbol in multivariable column indicates a variable entered in the analysis and then removed for lack of significance. Multivariable results are corrected by years.

IUI: intrauterine insemination; BMI: body mass index; FSH: follicular stimulating hormone; AMH: anti Müllerian hormone; AFC: antral follicular count; ET: embryo transfer.

ai.e. pelvic infections, endometriosis, pelvic adhesions and frozen pelvis.