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CME Credit Offered
CME Credit Offered
Abstract Award
Abstract Award
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Poster Session 4

(980) Comparison of various community level social indices and their associations with adverse pregnancy outcomes

Friday, January 31, 2025
4:00 PM – 6:00 PM  
Objective: The social vulnerability (SVI), maternal vulnerability (MVI), and area deprivation (ADI) indices measure community-level resilience to stressors, vulnerability to adverse maternal health outcomes, and socioeconomic disadvantage, respectively. Prior work has shown that ADI, SVI, and MVI can identify those at risk for preterm birth. The objective of this study was to compare the three indices and their associations with adverse pregnancy outcomes.

Study Design: This is a nested case control study within a prospective cohort study of singleton pregnancies from 2017 to 2020. The parent study excluded non-English speaking patients and IVF pregnancies. The primary outcome for this analysis was composite adverse obstetric outcomes (Table 1). These outcomes were compared between patients with low SVI, MVI, and ADI (< 75th percentile, representing higher resilience/less vulnerable/prosperity) versus high SVI, MVI, and ADI (≥75th percentile, representing lower resilience/more vulnerable/deprivation) and stratified by race.

Results: Among 1260 birthing people, patients with high SVI and ADI were more likely to have composite obstetric adverse outcomes compared to those with lower SVI and ADI, respectively (aOR 1.86, 95% CI [1.43, 2.42] and aOR 1.36, 95%CI [1.04, 1.78]). High MVI was not associated with adverse outcomes.  In the stratified analysis, race did not modify the association between SVI, MVI, ADI and adverse outcomes (P for interaction > 0.05 for all three).

Conclusion: Among the three indices, SVI and ADI might be the most reliable indices to capture community-level determinants of obstetric outcomes. Social vulnerability and community-level deprivation, independent of race, are associated with adverse pregnancy outcomes.