University of Maribor Faculty of Health Sciences, Maribor, Slovenia.
College of Health Sciences, University of Delaware, Newark, Delaware, USA.
Int J Older People Nurs. 2022 Jan;17(1):e12411. doi: 10.1111/opn.12411. Epub 2021 Aug 9.
Poor sleep quality predicts poor quality of life, poor self-rated health, and chronic diseases and mental disorders among older adults. The Pittsburgh Sleep Quality Index (PSQI) is the most widely used self-report measure of sleep quality in older adults.
This study aimed to assess internal reliability, face validity, content validity and internal consistency of the Slovenian version of the PSQI (PSQI-SLO) for sleep quality in older adults.
A cross-sectional study was used to evaluate content and face validity as well as reliability (ɑ, ω and item-total correlations). Residents of 13 nursing homes and community-dwelling older adults from all regions of Slovenia were sampled. A total of 831 participants aged 65 years and older participated in the study between March and August 2019.
All items were successfully translated to Slovenian. A minor cultural adaptation was made to improve the clarity of the meaning of all items. None of the items had an item content validity index (I-CVI) score lower than 0.50. Kappa indices were excellent for half of the items and good for the remainder. Internal consistency agreed with prior research (ɑ = 0.74). Intraclass correlation coefficient for global PSQI-SLO was 0.62 (p < 0.001). The total score of PSQI-SLO (8.09 ± 3.64 (95%, CI = 7.85-8.34)) was expected and comparable. Fifty-eight and four tenths' per cent (95%, CI = 55%-62%) had at least one chronic disease and 40% (95%, CI = 37%-42%) lived in a nursing home.
PSQI-SLO showed adequate internal consistency and test-retest reliability, and adequate construct and criterion validity. The instrument can be important in assessing older adults' subjective sleep quality in nursing homes, home environment and clinical settings.
睡眠质量差可预测老年人生活质量差、自我健康评估差、慢性疾病和精神障碍。匹兹堡睡眠质量指数（PSQI）是最常用于评估老年人睡眠质量的自我报告工具。
本研究旨在评估 PSQI 斯洛文尼亚语版本（PSQI-SLO）在评估老年人睡眠质量方面的内部信度、表面效度、内容效度和内部一致性。
采用横断面研究评估内容和表面效度以及可靠性（α、ω和项目总分相关性）。从斯洛文尼亚所有地区的 13 家养老院和社区居住的老年人中抽取样本。共有 831 名年龄在 65 岁及以上的参与者于 2019 年 3 月至 8 月参加了这项研究。
所有项目都成功翻译成斯洛文尼亚语。对所有项目的含义进行了细微的文化调整，以提高其清晰度。没有一个项目的项目内容效度指数（I-CVI）得分低于 0.50。半数项目的 Kappa 指数为优，其余项目为良。内部一致性与先前的研究结果一致（α=0.74）。PSQI-SLO 的总体信度 ICC 为 0.62（p<0.001）。PSQI-SLO 的总分（8.09±3.64（95%置信区间=7.85-8.34））是可预期的，并且是可比的。58.4%（95%置信区间=55%-62%）至少患有一种慢性病，40%（95%置信区间=37%-42%）居住在养老院。
PSQI-SLO 显示出足够的内部一致性和重测信度，以及足够的结构效度和效标效度。该工具可用于评估养老院、家庭环境和临床环境中老年人的主观睡眠质量。
