Abstract:

Objective
To assess the  sleep quality of residents in Changchun city,investigate and analyze its relevant influencing factors,and  provide basis data of the sleep quality of  general population in Changchun city and scientific evidence for prevention and improvement of sleep quality.  Methods From September to November in 2008,3 285 residents in Changchun city  were surveyed as subjects with questionnaires through convenient cluster sampling method,including Chaoyang County,Luyuan County,Kuancheng County,Nanguan County,and Nong’an County; Pittsburgh Sleep Quality Index (PSQI) questionnaire was administered to evaluate the sleep quality.Those whose global score of PSQI over 8 were thought to have poor sleep quality and the prevalence was calculated; Self-designed questionnaire was used to investigate the sleep influencing factors,including demographic characteristics,physical and psychological health conditions.Univariate and multivariate analysis were carried out to explore the correlation between sleep quality and its relavant factors.Results The  mean global score of PSQI was 4.43±2.70 and 12.6 percent residents in Changchun city had poor sleep quality.Univariate factor analysis showed that sex,source(City/Town),occupation type,education level,marriage,abdomen fat,smoking habit were related with sleep quality（P<0.05）.Multivariate factor analysis found out that age,coronary heart disease,body pain,fatigue,low self-satisfaction,family conflict and bad mood were risk factors of sleep quality.BMI,drinking alcohol, hypertension,and diabetes had no significant correlation with sleep quality yet.Conclusion Poor sleep quality exists widely in Changchun residents.Female,rural,manual labor,and poor marriage population have high risk and should arouse genereal concern.Health physical and psychological conditions are advocated for good sl
eep quality.

Key words: sleep quality, Pittsburgh Sleep Qeality Index, correlation study