Figure 3. Adjusted risk ratios of ischemic placental disease and its components in singleton autologous (a) and donor (b) IVF pregnancies by two-day increases in βhCG.

Note: Data presented as risk ratio and 95% CI. Adjusted for maternal age and parity. IPD: ischemic placental disease; SGA: small for gestational age.

Autologous: <100% (n=210), 100–≤150% (n=267), 150–≤200% (n=173), >200% (n=66).

Donor: ≤150% (n=63), >150% (n=39).

Adjusted models for autologous placental abruption and donor cycles for preeclampsia and placental abruption did not converge.