Quality of sleep and its related risk factors in hospitalized older patients in Kashan's Hospitals, Iran 2009

ABSTRACT

Sleep is an effective factor in the process recovery from diseases. Many variables affect the sleep quality of hospitalized older patients. This study was conducted to evaluate the quality of sleep and its related risk factors in hospitalized older patients in Kashan's hospitals, Iran 2009. Settings and design: a cross-sectional study was carried out on a sample of 400 hospitalized older adults in the hospital of Kashan, Iran. The Farsi Pittsburgh Sleep Quality Index [FPSQI] was used for gathering data. A global sum of 6 or greater indicates a poor quality of sleep. Statistical analysis used data were analyzed using the Chi-square test, t-test, ANOVA, and binary logistic regression at the multivariate model. The overall quality of sleep of the patients in this study was poor. In the final regression model, sex [OR = 0.342], level of education [OR = 0.470], type of ward [OR = 0.592], previous hospitalization experience [OR = 2.336], and use of hypnotics in hospital [OR = 3.633] were the most important predictors of sleep quality. The most prevalent sleep disturbing factors were worries and anxiety, environmental noises and pain. However, the most negative effects on the PSQI mean score were reported to be from dyspnea, environmental lights, and changes in the sleep habits. Quality of sleep also had significant relationship with sleep latency [P = 0.001] and having a respiratory disorder. The knowledge of sleep disturbing factors in hospitalized older adults might help in planning preventive strategies to improve quality of sleep.