Evening intake of alcohol, caffeine, and nicotine: night-to-night associations with sleep duration and continuity among African Americans in the Jackson Heart Sleep Study.

ABSTRACT:

Study objectives

We examined the night-to-night associations of evening use of alcohol, caffeine, and nicotine with actigraphically estimated sleep duration, sleep efficiency, and wake after sleep onset (WASO) among a large cohort of African American adults.

Methods

Participants in the Jackson Heart Sleep Study underwent wrist actigraphy for an average of 6.7 nights and completed concurrent daily sleep diary assessments to record any consumption of alcohol, caffeine, and nicotine within 4 hours of bedtime. Linear mixed-effect models were fit and adjusted for age, sex, educational attainment, body mass index, depression, anxiety, stress, and having work/school the next day.

Results

Eligible participants (n = 785) were an average of 63.7 years (SD: 10.6), and were predo

SUBMITTER: Spadola CE 

PROVIDER: S-EPMC6802565 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature