Abstract 14750: Characteristics Associated With Postpartum Physical Activity Levels Among Women With Hypertensive Disorders of Pregnancy

Abstract

Background: Hypertensive disorders of pregnancy (HDP), such as preeclampsia, are associated with increased risk of CV disease. Postpartum interventions may mitigate this risk but have not been well studied in women with HDP. STEP UP Mom is a randomized clinical trial to increase physical activity (PA) in postpartum women with HDP using remote monitoring and social incentives (NCT04119232). We analyzed patient characteristics associated with daily step count prior to study randomization to understand factors associated with postpartum PA. Methods: Between October 2019 and May 2020, 168 women were enrolled. Participant characteristics were collected from surveys and chart abstraction. We used univariate and multivariable linear regression to identify characteristics associated with step count, as measured by wearable devices. We also compared women with low step count (defined as ≤ 4800 steps/day, the lowest step count quartile) vs. > 4800 steps per day using chi-square test. This analysis includes 137 participants with complete baseline data available at end of enrollment. Results: Mean daily baseline step count was 7444 (SD 3453). The associations between participant characteristics and baseline daily step count are presented in the Table. In multivariable regression, characteristics associated with higher baseline step count were self-reported health as good or better (2789 steps, p<0.001), tobacco use (2622 steps, p=0.03) high school education or less (1676 steps, p=0.019) and weeks since delivery (293 steps per week, p=0.011). Participants with low baseline step count (≤ 4800 steps/day) were more likely to enroll after the COVID-19 pandemic (34% vs. 18%, p=0.04) and be married (71% vs. 49%, p=0.029) compared to those with normal/high step count. Conclusion: Multiple patient characteristics impact postpartum PA levels, which may be helpful in planning lifestyle interventions in high-risk postpartum women.