Differential associations of total and context-specific sedentary time with depressive symptoms among adolescents: Results from Ireland’s CSPPA Study

Chloe Forte*, Cillian McDowell, Marie H Murphy, Catherine Woods, Mats Hallgren, Wesley O'Brien, Sarahjane Belton, Cormac Powell, Matthew Herring

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Background: Higher levels of sedentary behaviour (SB) and screen-time are associated with greater symptoms of depression in adolescents, but the effect of the type and context of SB and screen-time remains underexplored. As part of a nationally-representative observational study, the current cross-sectional study examined associations between SB, screen-time and depressive symptoms among 422 adolescents (13.5 ± 0.92 years; 125 female) in the Republic of Ireland.
Method: Participants completed the Quick Inventory of Depressive Symptomatology and self-reported weekly SB, categorised into mentally-active screen-time (e.g., computer use for fun), mentally-passive screen-time (e.g., television viewing) and mentally-active non-screen-based SB (e.g., reading). Mann–Whitney U tests and Kruskal–Wallis H tests examined differences in screen-time and depressive symptoms by relevant covariates. Linear regression quantified crude and adjusted associations between total SB and mentally-active and mentally-passive screen-time and SB, and depressive symptoms.
Results: Crude and adjusted linear regressions showed total SB was significantly, positively associated with depressive symptoms (unadjusted: β = 0.27, p = 0.002, adjusted: β = 0.27, p = 0.002). When type and context were examined in the same model, only mentally-active screen-time was positively associated with depressive symptoms (unadjusted: β = 0.37, p = 0.009, adjusted: β = 0.39, p = 0.007).ConclusionDifferential associations between total SB and mentally-active screen-time and SB, versus mentally-passive screen-time, and depressive symptoms among Irish adolescents were observed. Findings highlight the importance of investigating the context and type of SB and screen-time in adolescents.
Original languageEnglish
JournalInternational journal of behavioral medicine
Early online date5 Oct 2022
DOIs
Publication statusE-pub ahead of print - 5 Oct 2022

Keywords / Materials (for Non-textual outputs)

  • cross-sectional study
  • depression
  • screen-time
  • sedentary behaviour

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