1055 A Preliminary Validation Study of a Composite Sleep Health Index: Associations with Psychological Distress, Obesity, and Physical Functioning

Abstract Introduction Individual sleep dimensions, such as sleep duration or quality, have been linked to numerous physical and mental health conditions. However, scant research has examined how sleep dimensions may act independently, additively, or synergistically to influence health. The current study investigates associations of five sleep dimensions (duration, satisfaction, efficiency, timing, and regularity), independently and as part of a composite sleep health index, with psychological distress, body mass index, and physical functioning in a high-risk sample of African American adults. Methods We constructed a composite Sleep Health (SH) score by summing a set of binary scores, representing “better” versus “worse” ranges of the following sleep measures: actigraphy-assessed sleep timing, duration, regularity, and efficiency and self-reported sleep quality. Outcomes included self-reported psychological distress, physical functioning and measured BMI. Participants included 740 low-income African Americans (78% female). Results We found statistically significant associations between the SH score as well as specific combinations of sleep dimensions and psychological distress (p’s