844 Characteristics of patients that attend 7-10 days postpartum visit for blood pressure check

Abstract

To assess maternal characteristics that predict attendance of postpartum blood pressure visit in patients with hypertensive disorders of pregnancy (HDP). A retrospective case-control study of patients with HDP delivering at a single academic institution (2014-2018). Diagnosis of HDP included gestational hypertension, chronic hypertension, preeclampsia and superimposed preeclampsia. Univariable and multivariable analyses were used to determine maternal characteristics independently associated with attendance of 7-10 days postpartum blood pressure check. Of the 1,042 patients included in analysis, 603 (57.9%) attended the 7-10 days postpartum blood pressure check. Maternal sociodemographic, clinical and obstetric factors differed significantly between patients that attended the postpartum blood pressure visit and those that did not (Table). In univariable analyses, nulliparity, non-Hispanic black race and ethnicity, public insurance, HDP with severe features, cesarean birth, gestational age at delivery, receipt of magnesium, mild range blood pressures on day of discharge and initiation of antihypertensive medication were associated with attendance of the 7-10 days postpartum visit (Table). In multivariable analysis, factors significantly associated with higher odds of attending the blood pressure visit were nulliparity (aOR 1.58; 95% CI 1.14-2.17), severe HDP (aOR 1.94, 95% CI 1.44-2.61) and cesarean birth (aOR 1.92, 95%CI 1.43 – 2.59). In contrast, factors associated with lower odds of attendance were non-Hispanic black race and ethnicity compared with non-Hispanic white (aOR 0.68, 95% CI 0.47 – 0.97), and public insurance (aOR 0.65, 95% CI 0.45 – 0.93) compared with private insurance (Table). Clinical factors such as nulliparity, severe HDP and cesarean birth were associated with higher rates of postpartum blood pressure check attendance, whereas sociodemographic factors such as maternal non-Hispanic black race and ethnicity and public insurance were associated with lower odds of postpartum blood pressure check attendance.