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0746 Two Year Follow-up of the SHIP (Sleep Health In Preschoolers) Randomized Trial: Trajectories Of Change

Sleep (New York, N.Y.), 2019-04, Vol.42 (Supplement_1), p.A299-A300 [Peer Reviewed Journal]

Sleep Research Society 2019. Published by Oxford University Press on behalf of the Sleep Research Society. All rights reserved. For permissions, please e-mail journals.permissions@oup.com. ;ISSN: 0161-8105 ;EISSN: 1550-9109 ;DOI: 10.1093/sleep/zsz067.744

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  • Title:
    0746 Two Year Follow-up of the SHIP (Sleep Health In Preschoolers) Randomized Trial: Trajectories Of Change
  • Author: Garrison, Michelle M ; Ward, Teresa M
  • Subjects: Children & youth ; Intervention ; Sleep
  • Is Part Of: Sleep (New York, N.Y.), 2019-04, Vol.42 (Supplement_1), p.A299-A300
  • Description: Introduction While multiple interventions for behavioral sleep problems in young children show short-term effectiveness, less evidence is available demonstrating long-term impact. Methods The Sleep Health in Preschoolers (SHIP) study is a randomized, active-controlled trial of a behavioral sleep intervention for preschool-aged children (30-71 months) from community settings screening positive on the CSHQ. After a 3 month acute phase of weekly intervention contact, the monthly maintenance phase lasted 9 months. Assessments at each timepoint included parent report of the Child Sleep/Wake Scale (CSWS). Children with 3+ datapoints between baseline and 24-months were included in this analysis (N=346); t-tests compared CSWS between groups at each timepoint, trajectory analysis identified CSWS patterns over time agnostic of intervention assignment, and multinomial logistic regression examined the impact of intervention assignment on CSWS trajectory. Results Mean age at baseline was 43.5 months (SD 10.25), 46% female. Although CSWS total scores were equivalent at baseline (3.63 control and 3.64 intervention, SD 0.57), we see significant improvements in intervention vs. control at 3 months (Cohen’s D=0.80 SDs, p<0.001), 6 months (0.61 SDs), 12 months (0.74 SDs), 18 months (0.67 SDs), and 24 months (0.52 SDs), all p<0.01. Trajectory analysis shows three underlying patterns of CSWS over time — 1) a group (N=98) seeing quick improvement sustained over time, 2) a group (N=169) seeing gradual improvement over time, and 2) a group (N=79) seeing worsening followed by gradual improvement. In the multinomial logistic regression with the “gradual improvement” as the referent category (51% of the intervention group and 47% of controls), those randomly allocated to intervention were significantly more likely to show the “quick improvement” trajectory (RRR=3.28, 95%CI 1.75-6.18) and significantly less likely to show “early worsening” trajectory (RRR=0.20, 95%CI 0.10-0.39). Conclusion The SHIP intervention significantly improved child sleep, with initial effects visible by 3 months and continued impact through at least 2 years after study start. Support (If Any) This study is funded by a grant (5R01HD071937, PI: Garrison) from the Eunice Kennedy Shriver National Institute of Child Health & Human Development.
  • Publisher: Westchester: Oxford University Press
  • Language: English
  • Identifier: ISSN: 0161-8105
    EISSN: 1550-9109
    DOI: 10.1093/sleep/zsz067.744
  • Source: ProQuest One Psychology
    Alma/SFX Local Collection
    ProQuest Central
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