0829 A LARGE CROSS-SECTIONAL STUDY OF THE ASSOCIATIONS BETWEEN NEIGHBORHOOD AND INDIVIDUAL SOCIOECONOMIC STATUS AND SLEEP AND NAPPING

Abstract

Socioeconomic conditions at the individual and neighborhood levels have been recognized as important players in shaping people’s health behaviors and outcomes. Previous studies have linked individual-level indicators of low socioeconomic status (SES), such as racial and ethical minorities, low education and poverty, with sleep problems. Some studies also suggest that disadvantaged neighborhood environment may also be associated with extreme sleep duration and poor sleep quality. In the NIH-AARP diet and Health study, a large cohort of over 300,000 middle-to-old aged Americans, we examined the relationship between neighborhood and individual SES in relation to the duration of night-time sleep and day-time napping. At baseline (1995–1996), participants reported habitual sleep duration and daytime napping. Participants also reported their home addresses, which was linked to the 2000 US Census. Demographic variables at census tract level were used to generate a socioeconomic deprivation index by principle component analysis. Individual-level demographic factors were also reported at baseline and we focused on race/ethnicity and education. Multinomial logistic regression with robust variance estimation was used to estimate the odds ratios of each sleep and napping category in relation to quintiles of neighborhood SES and categories of individual-level SES indicators. Low SES at both the individual and neighborhood level was associated with short sleep duration (<5 hr) and excessive napping (1+ hr). Compared to Whites, Blacks are almost four times more likely to report <5hr of sleep (OR (95% CI), 3.95 (3.63, 4.28)), and 3.5 times more likely to report 1+ hr of napping (3.61 (3.40, 3.82)). Compared to college grads, people with less than high school education were more likely to be short sleepers (4.16 (3.85, 4.50) and excessive nappers (2.84 (2.69, 3.00). Compared to the highest quintile of neighborhood SES, the lowest quintile was also associated with short sleep (2.90 (2.68, 3.13)) and excessive napping (2.81 (2.69, 2.94). Long sleep (9+ hr) was not associated with SES in our study. Both neighborhood and individual SES are associated with sleep and napping. The research is supported by the intramural research funding at the National Cancer Institute