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OBJECTIVES Only a few prospective surveys have been performed to investigate the relationship between sleep complaints and coronary artery disease (CAD) mortality. This study was conducted to determine whether sleep complaints in a middle-aged population predicted total mortality and CAD mortality. DESIGN A population-based prospective study. Setting. The(More)
A new English instrument for screening mental health in children and adolescents, the Strengths and Difficulties Questionnaire (SDQ), was translated into Swedish and used for parental ratings of 900 children aged 6–10 years from the general population. The SDQ which comprises 25 items, divided into 5 subscales (prosocial, hyperactivity, emotional symptoms,(More)
Nineteen lightly sleep-deprived healthy volunteers were examined with H2(15)O and positron emission tomography (PET). Scanning was performed during wakefulness and after the subjects had fallen asleep. Sleep stage was graded retrospectively from electroencephalogram (EEG) recordings, and scans were divided into two groups: wakefulness or synchronized sleep.(More)
OBJECTIVE The aim of this study was to investigate the possible relationship among sleep complaints, sleep duration, and the development of diabetes prospectively over a 12-year period in a middle-aged Swedish population. RESEARCH DESIGN AND METHODS A random sample of 2,663 subjects aged 45-65 years living in mid-Sweden were sent a postal questionnaire(More)
To study the prevalence of reported sleep disturbances and the association between these complaints and psychological status, 529 randomly selected subjects aged 20-45 years were questioned about their sleep symptoms and psychological status by means of questionnaires. In this young population, feeling refreshed in the morning almost every day was reported(More)
The purpose of the study was to investigate the natural history of insomnia and its association with depression and mortality. In 1983, 1,870 randomly selected subjects aged 45-65 years answered a questionnaire on sleep and health. Of the 1,604 survivors in 1995, 1,244 (77.6%) answered a new questionnaire with almost identical questions. Mortality data were(More)
Associations between sleep and behaviour in 635 children, aged six to eight years, were investigated using parental responses to a sleep habits questionnaire, and to a behavioural screening form, the Strengths and Difficulties Questionnaire (SDQ). Global reports of sleep problems in 4.9% of the children were associated with a total SDQ score indicative of(More)
A random sample of 876 subjects aged 65-79 years were investigated by means of a questionnaire concerning sleep and related factors. Sleep problems were reported by 23.8% of females and 13.3% of males. Moderate or major complaints of maintaining sleep were reported by 43.5% of subjects, early morning awakening 33.4% and difficulties falling asleep 31.4%.(More)
OBJECTIVE To investigate the influence of hypnotic usage on all-cause and cause-specific mortality in a middle-aged population. METHODS A cohort of 1750 men and 1773 women aged 30-65 years who responded to a postal questionnaire in 1983. The questionnaire included questions about hypnotic usage, sleep duration, sleep complaints, medical conditions,(More)
OBJECTIVE To study the sleep pattern in ankylosing spondylitis, and to investigate gender differences in sleep, pain, and fatigue. METHODS Forty-three male and 27 female patients with ankylosing spondylitis completed a sleep questionnaire and the results were compared with earlier findings in 3,558 persons randomly selected from the general population. (More)