【中图分类号】R36【文献标识码】A DOI：10.12114/j.issn.1007-9572.2024.0567

    【Abstract】BackgroundWith thepopularizationof digitalmedia，screen-based electronics notonlyaddconvenience tolifebutalsohaveadverseefectsonsleep.Sleepiscloselyrelatedtohealth，butthereisalackofresearchontheimpactof scren time onsleepqualityamong patients withmultimorbidity.ObjectiveTo explorethe efectof screentimeonsleepquality among patients withmultimorbidityandseek measures to improve their sleepquality.MethodsUsing thedatafromthe Fourth Adult Chronic DiseaseandRiskFactor Surveillncein Guangzhouin2018，6177patients with multimorbidityaged 35and above wereselectedasstudysubjects.The Pitsburgh Sleep Quality Indexscale was used to assesssleepquality.Calculated the averagedilyusagetimeof television，computers，andmobilephonesamong surveyrespondents.Theaveragedailyscreentime of the respondents inthis study was 4h.Propensityscore matching was used to match patients with multimorbidity who had ?4 hours of daily screen time and gt;4 hours of daily screen time，and the matched data were analyzed by univariate and multivariate Logisticrgressionanalyses toexploretherelationshipbetweenscreen timeandslepqualityamong patients withmultiorbidity. ResultsAmong 6 177 study subjects ......