Table 5.
Analyses contrasting those above and those below the median change in BMI from pregnancy to follow-up.
| Linear Regression Model, Systolic Blood Pressure | ||||
| Above median change in BMI, N=162* | ||||
| B** | S.E. | β*** | P value | |
| Previous pre-eclampsia | −1.17 | 1.85 | −0.05 | 0.529 |
| Mean prior systolic BP**** | 0.23 | 0.07 | 0.279 | 0.001 |
| Current age | 0.17 | 0.09 | 0.13 | 0.072 |
| Current BMI | 0.31 | 0.14 | 0.18 | 0.028 |
| Below median change in BMI, N=167 | ||||
| Previous pre-eclampsia | 6.26 | 1.93 | 0.24 | 0.001 |
| Mean prior systolic BP | 0.13 | 0.05 | 0.21 | 0.008 |
| Current age | 0.26 | 0.11 | 0.18 | 0.016 |
| Current BMI | 0.12 | 0.14 | 0.07 | 0.393 |
| Linear Regression Model, Diastolic Blood Pressure | ||||
| Above median change in BMI, N=162 | ||||
| Previous pre-eclampsia | −0.62 | 1.43 | −0.03 | 0.664 |
| Mean prior diastolic BP | 0.20 | 0.07 | 0.24 | 0.003 |
| Current age | 0.06 | 0.07 | 0.07 | 0.387 |
| Current BMI | 0.25 | 0.10 | 0.19 | 0.015 |
| Below median change in BMI, N=167 | ||||
| Previous pre-eclampsia | 3.10 | 1.29 | 0.18 | 0.018 |
| Mean prior diastolic BP | 0.19 | 0.05 | 0.29 | 0.001 |
| Current age | 0.13 | 0.07 | 0.13 | 0.063 |
| Current BMI | 0.11 | 0.09 | 0.09 | 0.222 |
| Logistic Regression Model (Subsequent hypertension as outcome) | ||||
| Above median change in BMI, N=162 | ||||
| OR | 95% CI | |||
| Previous pre-eclampsia | 2.67 | 1.06 − 6.70 | 0.036 | |
| Mean prior systolic BP | 1.04 | 1.01 − 1.07 | 0.041 | |
| Current age | 1.07 | 1.02 − 1.13 | 0.006 | |
| Current BMI | 0.99 | 0.92 − 1.07 | 0.800 | |
| Below median change in BMI, N=167 | ||||
| Previous pre-eclampsia | 4.22 | 1.76 − 10.1 | 0.001 | |
| Mean prior systolic BP | 1.02 | 0.99 − 1.03 | 0.277 | |
| Current age | 1.10 | 1.04 − 1.15 | 0.001 | |
| Current BMI | 1.04 | 0.98 − 1.11 | 0.201 | |
| Logistic Regression Model (Subsequent hypertension as outcome) | ||||
| Additive model, N=329 | ||||
| Additive risk score***** | 1.55 | 1.16 − 2.06 | 0.003 | |
| Mean prior systolic BP | 1.03 | 1.01 − 1.05 | 0.009 | |
| Current age | 1.08 | 1.05 − 1.12 | 0.001 | |
| Current BMI | 1.00 | 0.96 − 1.05 | 0.994 | |
*
N= the number of participants with available covariates for a particular analysis
**
Unstandardized regression coefficient
***
Standardized regression coefficient
****
Mean systolic blood pressure, one year pre-pregnancy through 20 weeks gestation
*****
0=no PE, below median BMI increase (v BMI), 1=no PE, above median BMI increase (^BMI), 2= +PE, v BMI, 3= +PE, ^BMI