Associations between vigorous exercise during first trimester and infant’s birth weight according hypertensive disorder status
| Per 1 MET*hours/week increase | Adjusted model A*† | Adjusted model B‡§ | ||||
| Estimate | 95% CI | p Value | Estimate | 95% CI | p Value | |
| Pre-eclampsia (n=77) | −20.57 | −36.50 to -4.65 | 0.011 | −19.76 | −35.24 to -4.28 | 0.012 |
| Gestational hypertension (n=116) | −0.28 | −13.64 to 13.08 | 0.967 | 1.63 | −11.50 to 14.76 | 0.808 |
| No hypertensive disorder (n=1720) | −2.19 | −5.82 to 1.44 | 0.238 | −1.69 | −5.23 to 1.86 | 0.350 |
*Adjusted for gestational age at delivery, infant’s sex, study centre, maternal prepregnancy BMI, age, education, ethnicity, parity, drug use, smoking, paternal weight, history of diabetes prior to pregnancy, third trimester sleep score, physical activity prior to pregnancy, interaction between hypertensive disorder and physical activity, and history of hypertension prior to pregnancy.
†p=0.025 for the interaction between first trimester vigorous physical activity and pre-eclampsia status.
‡Adjusted for gestational age at delivery, infant sex, study centre, maternal prepregnancy BMI, age, education, ethnicity, parity, drug use, smoking, paternal weight, history of diabetes prior to pregnancy, third trimester sleep score, physical activity prior to pregnancy, interaction between hypertensive disorder and physical activity, history of hypertension prior to pregnancy and gestational weight gain.
§p=0.023 for the interaction between first trimester vigorous physical activity and pre-eclampsia status.
MET, metabolic equivalent of task.