Singleton Pregnancy Outcomes after In Vitro Fertilization with Fresh or Frozen-Thawed Embryo Transfer and Incidence of Placenta Praevia

Table 5

Multivariate analysis using logistic regression showing connection of abnormal placentation to background parameters in 99 women.

Parameter	𝑃	Odds ratio (OR)	95% confidence interval (CI)
Maternal age	0.846	0.995	0.943–1.050
Multiparity	0.293	0.751	0.459–1.235
Previous uterine surgery; (including myomectomy, caesarean section, reconstructive surgery, or septum resection)	0.490	1.132	0.718–1.784
BMI
Extremely low (under 18.5)	0.402	0.538	0.126–2.290
High (above 30)	0.544	0.764	0.320–1.823
Supernumerary embryos developed in IVF cycle	0.275	1.269	0.827–1.946
Transfer of 2 embryos	0.043	1.952	0.020–3.735
Spontaneous cycle ET	0.064	0.417	0.150–1.164