title: [Sleep quality and influencing factors of perimenopausal women in Ningbo region].
abstract: To investigate the sleep quality and influencing factors of perimenopausal women in Ningbo region.
  
  
  
  A total of 527 perimenopausal women who lived in Ningbo for more than 5 years were enrolled in the study. The subjects were surveyed by self-designed questionnaire and Pittsburgh sleep quality index (PSQI); PSQI > 7 was defined as the cut-off value for sleep quality. Data were analyzed by software SPSS 11.0.
  
  
  
  The mean PSQI score was 5.79 ± 3.08 and 23.6 % of perimenopausal women in the study showed poor sleep quality. The proportion of poor sleep in 55-60 age group was 40.2%, significantly higher than that of 40-44, 45-49 and 50-54 age groups (P < 0.05). The sleep quality was associated with physical exercise, social activity, sleep circumstance, anxiety and family income in perimenopausal women.
  
  
  
  The sleep quality of perimenopausal women and the influencing factors are associated with mental health, life style and social environment, which suggests that some interventions should be undertaken to improve the sleep quality of perimenopausal women.
authors.affiliation: Department of Pharmacology and Preventive Medicine, Medical School of Ningbo University, Ningbo 315211, China.
authors.forename: Xue-feng
authors.initials: XF
authors.lastname: Mao
authors.forename: Lu
authors.initials: L
authors.lastname: Shao
authors.forename: Xin
authors.initials: X
authors.lastname: Zhao
authors.forename: Xiao-qing
authors.initials: XQ
authors.lastname: Lu
authors.forename: Qian
authors.initials: Q
authors.lastname: Zheng
authors.forename: Jin-tang
authors.initials: JT
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.forename: Chang-zheng
authors.initials: CZ
authors.lastname: Dong
mesh_terms: D000328:Adult; D002681:China; D005260:Female; D006801:Humans; D008875:Middle Aged; D047648:Perimenopause; D011788:Quality of Life; D012890:Sleep; D011795:Surveys and Questionnaires