The two studies in other cohorts, however, included
women with preeclampsia, preterm birth and SGA or
LGA offspring. The magnitude of the differences between
BMI categories may have important implications for
risk-related levels of high blood pressure for women of
different BMIs and at different gestational ages. For
example, for nulliparous obese women, values of SBP over
140mmHg were well within the 95% reference range
across the whole of pregnancy, whereas for normal weight
women, the 95% reference range remains below
135mmHg for much of pregnancy