著者 Kobayashi, Tomoko| Suzuki, Etsuji| Oksanen, Tuula| Kawachi, Ichiro| Takao, Soshi|
発行日 2014-01-31
出版物タイトル PLoS ONE
9巻
1号
資料タイプ 学術雑誌論文
著者 Kishimoto, Yoko| Suzuki, Etsuji| Iwase, Toshihide| Doi, Hiroyuki| Takao, Soshi|
発行日 2013-12-17
出版物タイトル BMC Public Health
13巻
資料タイプ 学術雑誌論文
著者 Kasai, Yosuke| Suzuki, Etsuji| Iwase, Toshihide| Doi, Hiroyuki| Takao, Soshi|
発行日 2013-10-17
出版物タイトル PLoS ONE
8巻
10号
資料タイプ 学術雑誌論文
JaLCDOI 10.18926/AMO/49254
フルテキストURL 67_1_25.pdf
著者 Ika, Katsuhiko| Suzuki, Etsuji| Mitsuhashi, Toshiharu| Takao, Soshi| Doi, Hiroyuki|
抄録 The purpose of this study was to examine the association between shift work and diabetes mellitus by separating shift workers according to the intensity of their shift work (seasonal shift work and continuous shift work). Between May and October 2009, we collected data from annual health checkups and questionnaires at a manufacturing company in Shizuoka, Japan. Questionnaires were returned by 1,601 workers (response rate:96.2%, men/women=1,314/287). Diabetes mellitus was defined as hemoglobin A1c≥6.5% and fasting blood sugar≥126mg/dl. After exclusions, which included all the women and clerical workers because they did not work in shifts, we analyzed 475 skilled male workers. After adjusting for age, smoking status, frequency of alcohol consumption, and cohabitation status, odds ratios for diabetes mellitus were 0.98 (95% confidence interval [CI]:0.28-4.81) and 2.10 (95% CI:0.77-5.71) among seasonal shift workers and continuous shift workers, respectively, compared with non-shift workers. In an age-stratified analysis (<45 years vs.≥45 years), the association between continuous shift work and diabetes mellitus was more pronounced among older participants. Compared with non-shift workers, the risk of diabetes mellitus was increased among continuous shift workers, whereas its effect is limited among seasonal shift workers.
キーワード cross-sectional study diabetes mellitus intensity Japan shift work
Amo Type Original Article
発行日 2013-02
出版物タイトル Acta Medica Okayama
67巻
1号
出版者 Okayama University Medical School
開始ページ 25
終了ページ 33
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2013 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 23439506
Web of Sience KeyUT 000316829900004
関連URL http://ousar.lib.okayama-u.ac.jp/metadata/50693
JaLCDOI 10.18926/AMO/48689
フルテキストURL 66_4_343.pdf
著者 Fujiwara, Takeo| Takao, Soshi| Iwase, Toshihide| Hamada, Jun| Kawachi, Ichiro|
抄録 Little is known about the association between social capital and child behaviors. This study aims to investigate that association. A complete population-based, cross-sectional survey was conducted for all the caregivers with preschool children in a rural town in Okayama prefecture in Japan. Two dimensions of individual-level social capital and unhealthy child behaviors were reported by parent-administered questionnaire. We analyzed 354 preschool children (57.6% of all children for whom questionnaires were completed). Children whose main caregiver had high cognitive social capital were 89% less likely to miss breakfast (odds ratio [OR]=0.11;95% confidence interval [CI]:0.01-1.03). Children whose caregiver had high structural social capital were 71% less likely to wake up late (OR=0.29;95% CI:0.12-0.71) and 78% less likely to skip tooth brushing more than once per day (OR=0.22;95% CI:0.05-0.93). Both cognitive and structural social capital were negatively associated with unhealthy child behaviors. A further intervention study is needed to confirm the impact of social capital on child behavior.
キーワード tooth brushing child health social capital skipping breakfast watching TV
Amo Type Original Article
発行日 2012-08
出版物タイトル Acta Medica Okayama
66巻
4号
出版者 Okayama University Medical School
開始ページ 343
終了ページ 350
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2012 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 22918207
Web of Sience KeyUT 000307918900007
著者 Yorifuji, Takashi| Tsuda, Toshihide| Inoue, Sachiko| Takao, Soshi| Harada, Masazumi|
発行日 2011-07
出版物タイトル Environment International
37巻
5号
資料タイプ 学術雑誌論文
JaLCDOI 10.18926/AMO/45268
フルテキストURL 65_2_97.pdf
著者 Tsuchihashi, Yuuki| Yorifuji, Takashi| Takao, Soshi| Suzuki, Etsuji| Mori, Shigeru| Doi, Hiroyuki| Tsuda, Toshihide|
抄録 Seasonal influenza infection is a major challenge in public health. The term "seasonal influenza" refers to the typical increase in the number of influenza patients in the winter season in temperature zones. However, it is not clear how environmental factors within a single flu season affect influenza infection in a human population. Therefore, we evaluated the effects of temperature and humidity in the 2006-7 flu season on the onset of seasonal influenza using a case-crossover study. We targeted patients who attended one pediatric clinic in Okayama city, Japan and who were diagnosed as being infected with the seasonal influenza virus. Using 2 references (time-stratified and symmetric bidirectional design), we estimated the effects of average temperature and relative humidity from the onset day (lag0) to 10 days before (lag10). The total number of subjects was 419, and their onset days ranged from 26 December 2006 to 30 April 2007. While the onset was significantly associated with lower temperature, relative humidity was not related. In particular, temperatures before the 3-day incubation period had higher-magnitude odds ratios. For example, the odds ratio and 95% confidence interval for average temperature at time lag 8 was 1.12 (1.08-1.17) per 1.0℃ decrease. Low environmental temperature significantly increased the risk of seasonal influenza onset within the 2006-7 winter season.
キーワード seasonal influenza in humans temperature humidity case-crossover study
Amo Type Original Article
発行日 2011-04
出版物タイトル Acta Medica Okayama
65巻
2号
出版者 Okayama University Medical School
開始ページ 97
終了ページ 103
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2011 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 21519367
Web of Sience KeyUT 000289818800005
JaLCDOI 10.18926/AMO/32854
フルテキストURL fulltext.pdf
著者 Sasaki, Ayako| Yorifuji, Takashi| Iwase, Toshihide| Komatsu, Hirokazu| Takao, Soshi| Doi, Hiroyuki|
抄録 <p>Obesity in children is a serious public health problem, and TV viewing is considered a potential risk factor. Since, however, no relevant association studies have been conducted in Japan, we evaluated the association between TV viewing and obesity using a population-based study conducted in a Japanese town. All 616 preschool children in the town were enrolled in February 2008, and a self-administered questionnaire to collect children's and parents' characteristics was sent to the parents. We dichotomized the time spent TV viewing and evaluated associations by logistic regression using a &#34;less than 2h&#34; category as a reference. The questionnaire was collected from 476 participants (77.3%), of whom 449 were available for the final analyses. Among them, 26.9% of preschool children reported 2 or more hours of TV viewing per day and 8.2% were defined as obese. In logistic regression analyses, there was no positive association in unadjusted (odds ratio [OR]1.11, 95% confidence interval [95% CI]:0.50-2.49) or adjusted models for exclusively breastfed status, sleep duration, or maternal factors (OR1.11, 95% CI:0.50-2.51). We also found no positive association between TV viewing and overweight status, possibly owing to the influence of social environment, low statistical power, or misclassification.</p>
キーワード TV viewing obesity preschool children
Amo Type Original Article
発行日 2010-04
出版物タイトル Acta Medica Okayama
64巻
2号
出版者 Okayama University Medical School
開始ページ 137
終了ページ 142
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 20424669
Web of Sience KeyUT 000276996900008
JaLCDOI 10.18926/AMO/31986
フルテキストURL fulltext.pdf
著者 Ochiai, Hirotaka| Ohtsu, Tadahiro| Tsuda, Toshihide| Kagawa, Haruko| Kawashita, Toshiaki| Takao, Soshi| Tsutsumi, Akizumi| Kawakami, Norito|
抄録 <p>On February 13, 2002, a public health center in Hiroshima Prefecture, Japan, was notified that many individuals living at the Japan Maritime Self-Defence Force base had symptoms resembling those of food poisoning. Self-administered questionnaires requesting information regarding meal consumption and symptoms were distributed to all 281 members at the base. A case of the illness was defined as a member who had had watery or mucousy stool, or loose stool with abdominal cramps, more than twice a day after consuming dinner on February 12. Control of the illness was defined as a member with no symptoms. The dinner on February 12 was significantly associated with the illness (Mantel-Haenszel odds ratio: 3.59, 95% confidence interval: 1.06-12.20). A case-control study showed that, among the food supplied at dinner on February 12, the braised chop suey was significantly associated with the illness (odds ratio: 12.30, 95% confidence interval: 1.90-521.00). The braised chop suey had been stored in a chafing dish. An environmental investigation indicated that Clostridium perfringens (C. perfringens) in the chafing dish proliferated under an inappropriate heat-retention temperature, and the contaminated braised chop suey could have caused the food poisoning. This study demonstrated that the recommended heat-retention temperature (over 65 degrees C) should be confirmed thoroughly.</p>
キーワード outbreak Clostridium perfringens (C. perfringens) epidemiology food poisoning
Amo Type Article
発行日 2005-02
出版物タイトル Acta Medica Okayama
59巻
1号
出版者 Okayama University Medical School
開始ページ 27
終了ページ 32
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 15902996
Web of Sience KeyUT 000227263300004
JaLCDOI 10.18926/AMO/31853
フルテキストURL fulltext.pdf
著者 Komatsu, Hirokazu| Yorifuji, Takashi| Iwase, Toshihide| Sasaki, Ayako| Takao, Soshi| Doi, Hiroyuki|
抄録 <p>To investigate the effect of exclusive breastfeeding on the likelihood of Japanese preschool children being overweight, population-based cross-sectional survey data from M town in Japan were used. Using the population registry of this town, all 616 preschool children were identified, and a self-administered questionnaire was sent to their parents. The exposure variable of interest was exclusive breastfeeding from birth to 6 months, and the outcome variable of interest was the children being overweight at preschool age. Statistical analyses used included logistic regression and sensitivity analyses. In the final analyses, we included 448 preschool children. Although all point estimates indicated a protective effect, logistic regression analyses showed no significant reduction in being overweight due to exclusive breastfeeding in the unadjusted model (odds ratio (OR)0.70, 95% confidence intervals:0.30-1.64), the model adjusted for birth weight (OR0.70, 95% CI:0.30-1.63), the model adjusted for child lifestyle (OR0.71, 95% CI:0.30-1.67), or the model adjusted for parental factors (OR0.46, 95% CI:0.15-1.37). In sensitivity analyses, point estimates were not significant, but a protective effect was observed. In conclusion, our results suggest that breastfeeding might have a protective effect on Japanese preschool children against being overweight, although statistical significance was not observed due to the limitation of the statistical power of the findings.</p>
キーワード breastfeeding overweight preschool children
Amo Type Original Article
発行日 2009-02
出版物タイトル Acta Medica Okayama
63巻
1号
出版者 Okayama University Medical School
開始ページ 49
終了ページ 55
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 19247416
Web of Sience KeyUT 000263730300007
JaLCDOI 10.18926/AMO/30971
フルテキストURL fulltext.pdf
著者 Hamada, Jun| Takao, Soshi|
抄録 <p>We discuss the concept of social capital, which has received much attention recently. Social capital is important for the following 2 key reasons:(1) a highly democratic polity and a strong economic performance that attaches great importance to the public good can be achieved on the basis of high social capital;and (2) social capital can effect health status in the human population, and widening of income inequality harms human health through the erosion of social capital. In addition, there are 3 political implications of social capital for Japanese society:(1) social capital has implications for the political decision of whether Japanese society should adopt a “medium burden for medium welfare” or a “low burden for small welfare” model together with the concept of social overhead capital;(2) reciprocity, which is one of the primary components of social capital, is similar to the philosophy underlying the health care system of Japan;(3) Japanese society needs to change from a society that emphasizes the relationships between its members to a society that is open to outsiders and has sufficient opportunities.</p>
キーワード social capital trust norm of reciprocity network of civic engagements income inequality and health
Amo Type Review
発行日 2008-10
出版物タイトル Acta Medica Okayama
62巻
5号
出版者 Okayama University Medical School
開始ページ 275
終了ページ 283
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 18985087
Web of Sience KeyUT 000260391300001
著者 高尾 総司|
発行日 2000-08-31
出版物タイトル 岡山医学会雑誌
112巻
3-8号
資料タイプ 学術雑誌論文
著者 高尾 総司|
発行日 2000-03-31
出版物タイトル
資料タイプ 学位論文