An approach to understanding sleep and depressed mood in adolescents: person-centred sleep classification

作者:Shochat Tamar*; Barker David H; Sharkey Katherine M; Van Reen Eliza; Roane Brandy M; Carskadon Mary A
来源:Journal of Sleep Research, 2017, 26(6): 709-717.
DOI:10.1111/jsr.12550

摘要

Depressive mood in youth has been associated with distinct sleep dimensions, such as timing, duration and quality. To identify discrete sleep phenotypes, we applied person-centred analysis (latent class mixture models) based on self-reported sleep patterns and quality, and examined associations between phenotypes and mood in high-school seniors. Students (n = 1451; mean age = 18.4 +/- 0.3 years; 648 M) completed a survey near the end of high-school. Indicators used for classification included school night bed-and rise-times, differences between non-school night and school night bed- and rise-times, sleep-onset latency, number of awakenings, naps, and sleep quality and disturbance. Mood was measured using the total score on the Center for Epidemiologic Studies-Depression Scale. One-way ANOVA tested differences between phenotype for mood. Fit indexes were split between 3-, 4-and -phenotype solutions. For all solutions, between phenotype differences were shown for all indicators: bedtime showed the largest difference; thus, classes were labelled from earliest to latest bedtime as 'A' (n = 751), 'B' (n = 428) and 'C' (n = 272) in the 3-class solution. Class B showed the lowest sleep disturbances and remained stable, whereas classes C and A each split in the 4-and -class solutions, respectively. Associations with mood were consistent, albeit small, with class B showing the lowest scores. Person-centred analysis identified sleep phenotypes that differed in mood, such that those with the fewest depressive symptoms had moderate sleep timing, shorter sleep-onset latencies and fewer arousals. Sleep characteristics in these groups may add to our understanding of how sleep and depressed mood associate in teens.

  • 出版日期2017-12