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Using univariable and multivariable analysis, demographic, clinical and labor characteristics were compared between patients who had persistent hypertension 1-year postpartum, defined as 130 systolic or 80 diastolic, and those with normal blood pressures. RESULTS: Of the 421 patients included in this analysis, 189 (44.9%) had persistent hypertension at 1-year postpartum. In univariable analysis, patients who were older, multiparous, had mild-range BPs prior to discharge, discharged home after delivery on antihypertensive medications, and patients with elevated blood pressures at 6week postpartum visit, were more likely to have persistent hypertension at 1-year postpartum (Table 1). In multivariable logistic regression, nulliparity (aOR 0.57, 95% CI 0.35-0.92), mild range BPs on day of discharge after delivery (aOR 1.74, 95% CI 1.06-2.83), and elevated blood pressures at the 6-week postpartum visit (aOR 2.35, 95% CI 1.49-3.70) remained to be associated with persistent hypertension 1-year postpartum (Table 2). CONCLUSION: In this cohort, a high percentage of patients with a diagnosis of gestational hypertension or preeclampsia in their recent pregnancy had persistent hypertension at 1-year postpartum, using the 2017 ACC/AHA hypertension definition. Specific factors associated with persistent hypertension 1-year postpartum were nulliparity, elevated blood pressures prior to hospital discharge after delivery, and persistent hypertension at 6-week postpartum visit.
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