Factors | Odds ratio (95% confidence interval) | |
---|---|---|
Unadjusteda | Adjustedb | |
History of intrauterine adhesions | 3.68(1.43–9.49) | 7.93(2.35–26.81) |
History of clinical confirmed PAS | 3.85(1.92–7.74) | 6.99(2.85–17.18) |
Placenta location | Â | Â |
 Anterior(ref) | NA | NA |
 Posterior | 5.84(3.52–9.68) | 6.30(3.48–11.40) |
 bilateral/fundal | 2.01(0.80–5.03) | 2.64(0.90–7.69) c |
History of placenta previa | 1.91(0.80–4.54) | 3.41(1.18–9.82) |
Gravidity > 3 | 0.46(0.29–0.72) | 0.40(0.22–0.74) |
History of previous CD | 0.31(0.18–0.52) | 0.36(0.19–0.70) |
Placenta previa | 0.19(0.10–0.36) | 0.19(0.09–0.40) |