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Multivariable Analysis of the Effect of Maternal and Sonographic Factors on Correct Classification of Chorionicity
| Factor | Adjusted OR (95% CI) | P |
|---|---|---|
| 1st-trimester sonography | 0.47 (0.23–0.96) | .04 |
| Maternal age | 0.97 (0.92–1.03) | .35 |
| Maternal BMI | 1.02 (0.97–1.07) | .40 |
| Nulliparity | 1.11 (0.51–2.42) | .78 |
| Prior cesarean delivery | 1.10 (0.35–3.48) | .87 |
Each factor was adjusted for all other factors in the table.
