Objective To explore the relationship between the sleep quality and mental health status in patients with insomnia, and to explore the significance of the quantitative analysis of polysomnograms in evaluating the objective and subjective situation of sleep in insomniacs. Methods 98 patients of insomnia and 98 normal controls were measured with Pittsburgh Sleep Quality Index （ PSQI ）, SCL-90 and the all-night polysomnography （PSG） recordings were conducted . The sleep latency , total sleep time and sleep efficiency were rated after getting up the next morning. Results There were significant differences in sleep quality and in total score of SCL- 90 ,factor-score of somatization,depression,anxiety and dyssomnia between the patients with insomnia and the normal controls. A prolonged sleep latency, decreased total sleep duration, increased awake frequency, low sleep efficiency, abnormal sleep architecture such as decreased REM sleep was found in patients with insomnia. The difference between subjective sleep and objective estimates of sleep was significant. Conclusion The insomnia patients not only have lower sleep quality , but also have more mental health situations. There are varying features of PSG parameters with patients insomnia. Observation and quantitative analysis of polysomnograms might distinguish subjective insomnia from objective insomnia. There are have differences between subjective and objective estimates of sleep in the insomniacs . The insomniacs presents a tendency to overestimate the sleep latency and underestimate the sleep time.
Chinese Journal of Behavioral Medical Science