0240 Greenspace in Relation to Sleep Health among a Racially and Ethnically Diverse Cohort of US Women

Abstract Introduction Exposure to greenspace has been associated with better sleep health by potentially supporting salubrious activities (e.g., physical activity), buffering noise, improving air quality, and promoting mental health. However, most prior studies have included few dimensions or lacked racial/ethnic diversity. Further, access is not equitably distributed across groups due structural racism, including environmental justice issues. Methods To investigate cross-sectional associations between health, overall race/ethnicity, we used data collected at enrollment (2003-2009) from women in the Sister Study (n=1,575 Hispanic/Latina, n=4,421 non-Hispanic (NH)-Black, n=41,628 NH-White). Participants’ home addresses (X-Y coordinates) were linked NASA’s Moderate Resolution Imaging Spectroradiometer Normalized Difference Vegetation Index (250m resolution) during July of year capture tertiles proximity greenspace. Participants reported multiple short duration (< 7 hours), insomnia symptoms, frequent napping, debt (≥2-hour difference average longest shortest a week). Adjusting for both individual- neighborhood-level sociodemographic characteristics, log Poisson regression robust variance estimated prevalence ratios (PRs) low/moderate vs. high poor sleep, race/ethnicity. Results Among participants (mean±SD age=55.7±9.0 years), Hispanic/Latina NH-Black comprised 8% population greenspace, 15% shorter poorer quality compared NH-White participants. After adjustment neighborhood disadvantage, density, was an higher napping (PR=1.08 [95% CI:1.02-1.15]). Low/moderate also marginally (PR=1.01 [0.98-1.05]), symptoms (PR=1.03 [0.99-1.07]), comorbid (PR=1.04 [0.99-1.10]) but debt. Associations did vary Conclusion Low moderate groups, as beneficial all. Although replication longitudinal objective measures warranted, interventions may improve health; equitable help address disparities. Support (if any) NIEHS (Z1AES103325[CLJ] Z01ES044005[DPS]):