Relativity study on sleep quality and mental status for 65 to 80 years old people

Abstract

Objective To investigate the mental health status and sleep quality in elderly inpatients, and probe into the relationship between them. Methods A total of 300 elderly inpatients were selected from the Fourth Affiliated Hospital of Harbin Medical University from October 2005 to October 2007. Pittsburgh sleep quality index (PSQI) was used to assess the sleep quality, and Pittsburgh sleep quality index more than 8 was used as the judging standard of sleep disorder. The 300 patients were divided into the group of PSQI less than 5 (n = 70), the group of PSQI from 5 to 8 (n = 80), and the group of PSQI more than 8 (n = 146) according to their PSQI index. The symptom checklist 90 (SCL-90) was used to assess the influence of mental status. The objective and significance were explained to the patients before the test. The patients were asked to finish the questionnaires within 1 to 2 hours independently. The analysis of variance (ANOVA) was made to compare the means of scores for SCL-90, and correlation analysis based on Spearman was used to make the correlation test between the mental health status and sleep quality. Results According to the intention, all the 300 patients were analyzed in the result.① The scores of somatization, compulsion, depression, anxiety and psychoticism and the total score in the group of PSQI more than 8 were significantly higher than those in the groups of PSQI from 5 to 8 and less than 4. The higher the score of PSQI was, the higher the score of factors and the total score of SCL-90 were. ② The scores of somatization, compulsion, depression, anxiety and psychoticism and the total score were in a highly positive correlation with the sleep quality, wherein the scores of others, somatization and compulsion were in a significantly positive correlation with the scores of sleep, time for falling asleep, time of sleep and efficiency of sleep. The scores of depression and anxiety and the total score of SCL-90 were in a highly positive correlation with the score of efficiency of sleep. Conclusions The poorer the sleep quality in eider inpatients is, the higher the scores of depression and anxiety are, so they axe in a remarkable positive correlation. The poor sleep quality causes the emotional disorder such as depression and anxiety. Our results indicate that sleeplessness is not only a kind of physical order, but also a kind of mental order. Key words: Sleep quality; Mental status; Age; Relativity