Social Epidemiology Of Influential Factors Of Insomnia In The Elderly In China

Background: It is reported that approximately 10%-50% of elderly people experience insomnia. A significant correlation has been observed among the elderly between insomnia and mental disorders, including depression and/or anxiety, which impair their quality of life.Objective: This study aimed to investigate the prevalence and sociodemographic and clinical risk factors of insomnia in the Chinese elderly.Methods: Participants were recruited from the inpatients at The First Affiliated Hospital of Chongqing Medical University aged 60 years or older who lived there from January 2013 to December 2014. A questionnaire on sleep status was provided to each patient to for a comprehensive geriatric assessment. Insomnia was assessed according to sociodemographic and clinical status. A multivariate logistic regression model was used to illustrate the significant risk factors correlated with insomnia.Results: Of the 599 participants, 55.4%(332) suffered from insomnia,with the condition being chronic in 93.1% of those. The prevalence of insomnia in men and women was 48.1 and 63.3%, respectively. Coronary heart disease, hyperlipidemia, dizziness, depression, and cognitive decline were identified as risk factors associated with the condition. Age,hypertension, diabetes, headache, anorexia, malnutrition, education level,and chronic pain were not observed to be significantly associated with insomnia.Conclusions: Women are more likely to experience insomnia than men, and the condition is more common in the elderly. Coronary heart disease, hyperlipidemia, dizziness, depression, and cognitive decline increase the risk of insomnia.