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Table 5 Reproductive and neonatal outcomes for overweight and obese patients versus normal patients

From: Effects of pre-pregnancy body mass index on pregnancy and perinatal outcomes in women with PCOS undergoing frozen embryo transfer

 Overweight vs. normal weightObesity vs. normal weight
Adjusted Odds Ratio (95% CI)Adjusted Odds Ratio (95% CI)
Clinical pregnancy rate0.93 (0.83–1.04)0.47 (0.05–3.57)
Miscarriage rate0.59 (0.15–2.35)1.33 (0.88–1.98)
Ongoing pregnancy rate0.96 (0.82–1.12)0.96 (0.53–1.72)
Live-birth rate1.05 (0.92–1.21)0.62 (0.18–2.49)
PTD1.36 (0.57–3.21)0.93 (0.57–1.53)
Very PTD1.13 (0.80–1.60)0.81 (0.33–2.04)
LBW1.15 (0.86–1.53)0.67 (0.22–1.96)
Very LBW0.92 (0.56–1.51)1.08 (0.84–1.36)
  1. PTD (preterm delivery:< 37 weeks of gestation), very PTD (very preterm delivery:< 32 weeks of gestation), LBW (low birth weight: birth weight < 2500 g);VLBW (very low birth weight: birth weight < 1500 g)
  2. Analyses were adjusted for maternal age, infertility duration, duration of cryopreservation, endometrial thickness, embryo quality, means of preparing the endometrium, number of embryo transferred as well as embryo developmental stage