Insomnia in men - A 10-year prospective population based study

Study objectives: to prospectively analyze changes in the prevalence of ins omnia and the relationship between insomnia, aging, lifestyle, and medical disorders Design: a longitudinal population survey. Participants: a randomly selected population sample of 2,602 men (age 30-69 years) from Uppsala in Sweden. Intervention: all participants answered a questionnaire on sleep disturbanc es, lifestyle factors, and medical disorders in 1984 and again in 1994. Measurements and Results: The prevalence of INSOMNIA was 10.3% in 1984 and 12.8% in 1994. No significant correlation was found between age and insomni a in any of the two time periods, Insomnia in 1994 was independently relate d to having insomnia in 1984 (OR=6.45), being overweight (BMI> 27 kg/m(2)) (OR=1.35), physical inactivity (OR=1.42), alcohol dependence (OR=1.75), psy chiatric disorders (OR=8.27) and joint/low back disorders (OR=2.95). The nu mber of subject with reported insomnia in 1984 but not 1994 was 149. Subjec ts that quit smoking during the time period had an increased likeliness of remission (OR=2.70) while men who were overweight were less likely to remit (OR=0.43). Conclusions: We conclude that in men insomnia is related to lifestyle facto rs such as obesity, physical inactivity and alcohol dependency but not to a ging. Medical disorders such as joint and low back disorders and psychiatri c illnesses also increase the risk of reporting insomnia. This study demons trates the close relationship between quality of sleep and overall health s tatus.