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Article type: Article
2014 Volume 19 Issue 1 Pages
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[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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[in Japanese], [in Japanese], [in Japanese], [in Japanese]
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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Ryuji FURIHATA, Chisato KONNO, Masahiro SUZUKI, Michiko KONNO, Sakae T ...
Article type: Article
2014 Volume 19 Issue 1 Pages
103-109
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Objective: Previous reports on sleep epidemiology have demonstrated that insomnia was more prevalent in women than in men. However, it remains to be elucidated whether similar female predominance may be true for different symptomatic subtypes of insomnia. We surveyed prevalence of insomnia subtypes among Japanese general adult population and examined the gender difference after adjusting for the confounding effect of sociodemographic factors. Methods: Cross-sectional surveys with a face-to-face interview were conducted in August and September, 2009, as part of the Nihon University Sleep and Mental Health Epidemiology Project (NUSMEP). Data from 2,559 people aged 20 years or older were analyzed (response rate 54.0%). Participants completed a questionnaire on sleep problems including the presence or absence of insomnia (i.e., difficulty initiating sleep (DIS), difficulty maintaining sleep (DMS), and early morning awakening (EMA)). Results: DIS occurring at least three nights per week was reported by 7.2% (men: 5.5%, women: 8.5%), DMS by 15.2% (men: 13.4%, women: 16.6%), EMA by 5.2% (men: 5.3%, women: 5.0%), giving the prevalence of 18.8% (men: 17.0%, women: 20.3%) regarding those who had any insomnia symptom. The overall prevalence of DIS, DMS, and any insomnia symptom was significantly higher in women than in men. Multiple logistic regression analyses revealed that only DIS was significantly associated with women after adjustment for the confounding effect of sociodemographic factors. Conclusions: This study has demonstrated that DIS played an important role in significance of gender difference of insomnia.
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Masahiro OTSUBO, Koichi IWASA, Takuya SUGAHARA, Mariko KIKUCHI, Fumita ...
Article type: Article
2014 Volume 19 Issue 1 Pages
110-116
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Bone mineral density (BMD) is lower in the patients with depressive and anxiety symptoms, but the cause is unclear. This study aimed to examine the factors affecting the decrease of BMD in postmenopausal women with mental illness retrospectively. The subjects were 165 women whose proximal femoral and lumbar spinal (L2-4) BMD were simultaneously measured using dual-energy X-ray absorptiometry. Age, menopause age, duration of exposure to estrogen, duration after menopause, height, weight, body mass index (BMI), times of delivery, habit of smoking or drinking, family history of bone fracture, and self-depression rating scale (SDS) were investigated. We selected 165 postmenopausal women aged from 40 to 59, including the cases with premature ovarian failure, and compared 72 women with mental illness (Group A) to 93 women without mental illness (Group B), using statistical analysis. Group A included 15 cases with depressive disorders, 12 cases with anxiety disorders, and 45 cases with adjustment disorders. The significant difference was not recognized in age, height, times of delivery, habit of smoking or drinking, and family history. The significant difference was recognized in menopause age, duration of exposure to estrogen, duration after menopause, weight, BMI. Both lumbar spinal BMD and proximal femoral BMD were significantly lower in Group A than Group B. Proximal femoral BMD was significantly lower than lumbar spinal BMD in both groups. Stepwise regression analysis selected postmenopausal period, body weight as explanatory variables for %YAM value of lumbar spine and proximal femur. As a result of analysis of covariance, there was no significant difference between the two groups on %YAM value, by adjusting the weight and postmenopausal period. It was suggested that loss of BMD in postmenopausal women was associated with low weight and prolonged postmenopausal period, but there was no association with mental illness.
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Mayuko ABE, Tadahiro YASUO, Masahiro OTSUBO, Miyoko WARATANI, Koichi I ...
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2014 Volume 19 Issue 1 Pages
117-122
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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2014 Volume 19 Issue 1 Pages
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