ABSTRACT
BACKGROUND: Inadequate sleep hygiene may result in difficulties in daily functioning; therefore, reliable scales for measuring sleep hygiene are important. OBJECTIVES: The purpose of this study was to assess the psychometric properties of the Persian version of the Sleep Hygiene Index (SHI). MATERIALS AND METHODS: From April 2014 to May 2015, 1280 subjects, who were selected by cluster random sampling in Kermanshah province, filled out the SHI, Pittsburgh sleep quality index (PSQI), Epworth sleepiness scale (ESS), and insomnia severity index (ISI). A subset of the participants (20%) repeated the SHI after a four to six-week interval to measure test-retest reliability. Then, we computed the Pearson product-moment correlation coefficients of SHI against PSQI, ESS and ISI, to demonstrate the construct validity of the SHI. The factor structure of the SHI was evaluated by explanatory factor analysis. RESULTS: The interclass correlation coefficient was 0.89, and SHI was found to have good test-retest reliability (r = 0.89, P < 0.01). The SHI was positively correlated with the total score of the PSQI (r = 0.60, P < 0.01), ESS (r = 0.62, P < 0.01) and ISI (r = 0.60, P < 0.01). Exploratory factor analysis extracted three factors, namely "sleep-wake cycle behaviors" (four items), "bedroom factors" (three items), and "behaviors that affect sleep" (six items). CONCLUSIONS: The Persian version of the SHI can be considered a reliable tool for evaluating sleep hygiene in the general population.
ABSTRACT
BACKGROUND: Cancer is usually accompanied by considerable stress for the sufferer, and the stress has destructive effects on Chemotherapy treatment process. Therefore, the current research deals with the effect of yoga laughter on the cancer patients' stress before chemotherapy. METHODS: In this research, as the first step, 37 cancer sufferers , who had been hospitalized in Shohada Tajrish Hospital (Behnam Daneshpoor Charity Organization) and had the requirements necessary for being taken as research samples, were selected for data collection. The mentioned patients were classified randomly in experimental and control groups. Collected data were analyzed by the multi-variable covariance analysis test. RESULTS: The results show there is a meaningful difference in the stress average before and after interference in the test group (p<0.05). CONCLUSION: Laughter yoga can decrease the stress in cancer sufferers before chemotherapy.
