Table 3 Univariable and multivariable regression analysis pre-pregnancy CMR parameters and uterine artery PI at 20 weeks gestation
| Â | N | Beta (95% CI) | P-value |
|---|---|---|---|
Univariable | |||
 Age at conception | 26 | −0.007 (− 0.044–0.030) | 0.687 |
 BMI (kg/m2) | 26 | − 0.018 (− 0.053–0.017) | 0.299 |
 Parity | 26 | −0.048 (− 0.370–0.284) | 0.788 |
 RV mass index (g/m2) | 26 | 0.002 (− 0.019–0.023) | 0.874 |
 RV EDVI (mL/m2) | 26 | 0.004 (− 0.003–0.010) | 0.270 |
 RV ESVI (mL/m2) | 26 | 0.008 (− 0.001–0.016) | 0.064 |
 RV cardiac output (L/min) | 25 | −0.026 (− 0.167–0.115) | 0.707 |
 RVEF (%) | 26 | − 0.021 (− 0.041 – − 0.001) | 0.037 |
 RV/LV volume ratio | 26 | − 0.267 (− 0.730–0.197) | 0.247 |
 LV mass index (g/m2) | 26 | 0.006 (− 0.013–0.025) | 0.509 |
 LV EDVI (mL/m2) | 26 | 0.015 (0.007–0.023) | 0.001 |
 LV ESVI (mL/m2) | 26 | 0.018 (0.007–0.030) | 0.003 |
 LV cardiac output (L/min) | 23 | − 0.047 (− 0.277–0.182) | 0.671 |
 LVEF (%) | 26 | − 0.019 (− 0.043–0.006) | 0.126 |
Multivariable | |||
 RVEF adjusted for age | 26 | −0.008 (− 0.042 – − 0.001) | 0.040 |
 RVEF adjusted for age and BMI | 26 | − 0.020 (− 0.041–0.001) | 0.057 |