Tung-Ping Su, Chairman (Correspondence)
Prevalence and risk factors of insomnia in community-dwelling Chinese elderly: a Taiwanese urban area survey
Article first published online: 24 AUG 2004
Australian and New Zealand Journal of Psychiatry
Volume 38, Issue 9, pages 706–713, September 2004
How to Cite
Su, T.-P., Huang, S.-R. and Chou, P. (2004), Prevalence and risk factors of insomnia in community-dwelling Chinese elderly: a Taiwanese urban area survey. Australian and New Zealand Journal of Psychiatry, 38: 706–713. doi: 10.1111/j.1440-1614.2004.01444.x
Department of Psychiatry, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan. Email: email@example.com
Shuang-Ruang Huang, assistant; Pesus Chou, Director and Professor
Community Medicine Research Center and Institute of Public Health, National Yang-Ming University, Taipei, Taiwan
- Issue published online: 24 AUG 2004
- Article first published online: 24 AUG 2004
- Received 1 May 2003; revised 4 June 2004; accepted 7 June 2004.
- prevalence rate;
- risk factor.
Objective: To determine the prevalence of and risk factors for self-reported sleep complaints in the elderly.
Method: A cross-sectional interview study was conducted in a total of 2045 non-institutionalized older individuals aged 65 years or above of an urban community of Taiwan.
Results: The prevalence of one-month insomnia was 6% overall with a higher rate in elderly women (8%) than men (4.5%). Frequent use of hypnotics over the past month was 8.4%. Among specific sleep complaints, poor sleep quality was the most commonly reported symptom, followed by difficulty falling asleep and difficulty maintaining sleep or early morning awakenings. Increasing age did not correlate with an increased rate of insomnia and female gender was not an independent risk factor. Factors associated with insomnia for both genders were nocturnal micturation (OR = 20.6) and regular use of hypnotics (OR = 3.2). Pulmonary disease (OR = 2.7), not married (OR = 2.3), excessive daytime sleepiness (OR = 2.4), and mental illness (OR = 8.6) were risk factors for men while lack of education (OR = 1.8) and body pain (OR = 2.6) were risk factors for women. Depression (OR = 2.2) was strongly associated with insomnia in the elderly women as well.
Conclusions: There was a low insomnia prevalence rate in the urban elderly community. Identified insomniacs required treatment of physical and mental problems, particularly in gender-specific risk factors. For those who complained of putative poor sleep quality symptom, early intervention may halt their progress of sleep disturbance and avoid unnecessary benzodiazepine use. Future longitudinal studies to investigate causes of insomnia, as well as its detrimental effects on mood and health, are warranted.