ArticleBMC psychiatry2026
Joint effects of sleep duration and sleep difficulty on suicidal ideation: evidence from NHANES 2005-2018.
Article in BMC psychiatry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundThis research investigated the combined influence of sleep duration and sleep difficulty on suicidal ideation in the general populace.
methodsNational Health and Nutrition Examination Surveys (NHANES) datasets from 2005 to 2018 were utilized in a cross-sectional study. Details on sleep duration, sleep difficulty, and suicidal ideation were accumulated using sets of questions. Sleep duration was segmented into short (≤ 6 h), optimal (6–9 h), and long (≥ 9 h). Multiple logistic regression models were utilized to analyze the links between sleep duration, sleep difficulty, and suicidal ideation, with multiplicative and additive interactions being examined.
resultsAmong the 24,703 participants, the weighted percent suggested that 3.2% reported suicidal ideation. Outcomes of the fully-adjusted designs suggested: (1) A U-shaped organization was observed between sleep duration and suicidal ideation, with both short sleep duration (OR = 1.40, 95% CI: 1.17– 1.67) and longer sleep duration (OR = 1.99, 95% CI: 1.46– 2.72) showing a boosted probability of suicidal ideation, (2) self-reported sleep difficulty confers 2.6-fold greater probabilities of suicidal ideation independent of sleep duration (OR = 2.67, 95% CI: 2.17– 3.28), and (3) the co-occurrence of longer sleep duration and sleep difficulty interactively enhanced suicide ideation risk (RERI = 1.24; AP = 0.28), accounting for 28% of suicidal ideation cases.
conclusionsBoth quantitative (sleep duration) and qualitative (sleep difficulty) problems individually and jointly boost suicidal ideation danger. Our study suggests that incorporating multidimensional sleep health assessments could enhance suicide prevention protocols.
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