ArticleJournal of Korean biological nursing science2026
Effects of a non-pharmacological multicomponent intervention on delirium, sleep quality, and total sleep time among emergency intensive care unit patients in South Korea: a non-equivalent control group time-series study.
Article in Journal of Korean biological nursing science, 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
purposeThis study examined the effects of a non-pharmacological multicomponent intervention on delirium, sleep quality, and total sleep time in patients admitted to an emergency intensive care unit (EICU).
methodsA non-equivalent control group time-series design was used. Data were collected from the EICU of a tertiary hospital in South Korea between October 2025 and March 2026. A total of 48 patients were included, with 24 each in the experimental and control groups. The 2-day intervention comprised delirium prevention, sleep promotion, and intervention adherence management. Delirium was assessed using the Korean Nursing Delirium Screening Scale, sleep quality using the Korean version of the Richards-Campbell Sleep Questionnaire, and total sleep time was measured using a wearable device. Data were analyzed using generalized estimating equations, analysis of covariance (ANCOVA), and two-way repeated-measures ANCOVA using SPSS version 26.0 program.
resultsDelirium scores were significantly lower in the experimental group than in the control group, with significant group (χ2 = 5.21, p = .022), time (χ2 = 12.86, p = .005), and group-by-time interaction effects (χ2 = 10.76, p = .013). Adjusted post-test sleep quality was significantly higher in the experimental group than in the control group (F = 16.15, p < .001, partial η2 = .26). Total sleep time showed significant main effects of group and time, whereas the group-by-time interaction was not significant (F = 2.61, p = .113, partial η2 = .05).
conclusionThe intervention helped prevent increases in delirium scores and improved sleep quality among EICU patients. This intervention may provide a feasible nursing strategy for critical care settings without the need for specialized equipment.
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