Yıldırım, Yasemin2024-11-042024-11-042022-05-051446-9235https://doi.org/10.1007/s41105-022-00389-2https://hdl.handle.net/11452/47331To investigate the psychometric characteristics of the modified Freedman Sleep Quality Questionnaire (mFSQQ) to assess sleep in Turkish intensive care unit (ICU) patients. This prospective cross-sectional study was conducted between December 2020 and August 2021 with patients older than 18 years, who stayed in the ICU for >= 24 h and were cooperative with a Glasgow Coma Scale score >= 10 in medical and surgical ICUs of a university hospital. During the adaptation of the items of the mFSQQ, language, content, and construct validity were examined, and the test-retest method and internal consistency were used to examine its reliability. The content validity index of the questionnaire was 0.82. The Kaiser-Meyer-Olkin measure of sampling adequacy was 0.71, which indicates adequate sampling; Bartlett's test of sphericity was chi(2) = 2868.97, p < 0.001. The Turkish version had three subscales. The factor loadings of the items were above 0.30, and the factors explained 60.59% of the total variance. The test-retest reliability coefficient was 0.85, indicating high consistency. The Cronbach alpha reliability coefficient was 0.80, indicating high reliability. The item-total correlations were found to be sufficient (between 0.25 and 0.78). The Turkish version of the mFSQQ showed good psychometric characteristics and can be used as a routine evaluation instrument to determine sleep quality by the ICU team and to promote sleep.eninfo:eu-repo/semantics/closedAccessIntensive-care-unitCritical illnessDeliriumDeprivationDisruptionCritical careValiditySleep deprivationScience & technologyLife sciences & biomedicineClinical neurologyNeurosciencesNeurosciences & neurologyArticle00079106100000245946520410.1007/s41105-022-00389-2