| フルテキストURL | fulltext.pdf |
|---|---|
| 著者 | Suzuki, Etsuji| Shinozaki, Tomohiro| Yamamoto, Eiji| |
| キーワード | bias causal inference causality confounding directed acyclic graphs |
| 発行日 | 2020-04-05 |
| 出版物タイトル | Journal of Epidemiology |
| 巻 | 30巻 |
| 号 | 4号 |
| 出版者 | Japan Epidemiological Association |
| 開始ページ | 153 |
| 終了ページ | 162 |
| ISSN | 0917-5040 |
| NCID | AA10952696 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | English |
| OAI-PMH Set | 岡山大学 |
| 著作権者 | © 2020 Etsuji Suzuki et al. |
| 論文のバージョン | publisher |
| PubMed ID | 32009103 |
| DOI | 10.2188/jea.JE20190192 |
| Web of Science KeyUT | 000519689100002 |
| 関連URL | isVersionOf https://doi.org/10.2188/jea.JE20190192 |
| JaLCDOI | 10.18926/AMO/45264 |
|---|---|
| フルテキストURL | 65_2_63.pdf |
| 著者 | Mizoguchi, Yoshinori| Suzuki, Etsuji| Tsuchida, Hiroaki| Tsuda, Toshihide| Yamamoto, Eiji| Nakase, Katsumi| Doi, Hiroyuki| |
| 抄録 | There have been only 2 reports of a large-scale foodborne outbreak arising from Salmonella enterica serotype Braenderup infection worldwide. On August 9, 2008, an outbreak originating in boxed lunches occurred in Okayama, Japan. We conducted a cohort study of 786 people who received boxed lunches from a particular catering company and collected 644 questionnaires (response rate:82%). Cases were defined as those presenting with diarrhea (≧4 times in 24h) or fever (≧38℃) between 12 am on August 8 and 12 am on August 14. We identified 176 cases (women/men:39/137);younger children (aged＜10 years) appeared to more frequently suffer severe symptoms. Three food items were significantly associated with higher risk of illness;tamagotoji (soft egg with mixed vegetables and meat) (relative risk (RR):11.74, 95% confidence interval (CI):2.98-46.24), pork cooked in soy sauce (RR:3.17, 95% CI:1.24-8.10), and vinegared food (RR:4.13, 95% CI:1.60-10.63). Among them, only the RR of tamagotoji was higher when we employed a stricter case definition. Salmonella Braenderup was isolated from 5 of 9 sampled cases and 6 food handlers. It is likely that unpasteurized liquid eggs contaminated by Salmonella Braenderup and used in tamagotoji caused this outbreak. |
| キーワード | boxed lunch cohort study foodborne diseases Salmonella Braenderup unpasteurized liquid eggs |
| Amo Type | Original Article |
| 発行日 | 2011-04 |
| 出版物タイトル | Acta Medica Okayama |
| 巻 | 65巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 63 |
| 終了ページ | 69 |
| 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 | 21519363 |
| Web of Science KeyUT | 000289818800001 |
| JaLCDOI | 10.18926/AMO/52406 |
|---|---|
| フルテキストURL | 68_2_101.pdf |
| 著者 | Izutsu, Masato| Suzuki, Etsuji| Izutsu, Yukako| Doi, Hiroyuki| |
| 抄録 | The aim of this study was to examine trends in the geographic distribution of nursing staff in Japan from 2000 to 2010. We examined time trends in the rates of nursing staff per 100,000 population across 349 secondary health service areas. Using the Gini coefficient as a measure of inequality, we separately analyzed the data of 4 nursing staff types:public health nurses (PHN), midwives (MW), nurses (NS), and associate nurses (AN). Then, using multilevel Poisson regression models, we calculated the rate ratios (RRs) and their 95% confidence intervals (CIs) for each type of nursing staff per 1-year change. Overall, the distribution of PHN, MW, and NS improved slightly in terms of the Gini coefficient. After adjusting for prefectural capital and population density, PHN, MW, and NS significantly increased;the RRs per 1-year increment were 1.022 (95% CI:1.020-1.023), 1.021 (95% CI:1.019-1.022), and 1.037 (95% CI:1.037-1.038), respectively. In contrast, AN significantly decreased;the RR per 1-year increment was 0.993 (95% CI:0.993-0.994). Despite the considerable increase in the absolute number of nursing staff in Japan (excluding AN), this increase did not lead to a sufficient improvement in distribution over the last decade. |
| キーワード | health policy inequality Japan multilevel Poisson model nursing staff |
| Amo Type | Original Article |
| 発行日 | 2014-04 |
| 出版物タイトル | Acta Medica Okayama |
| 巻 | 68巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 101 |
| 終了ページ | 110 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | English |
| 著作権者 | CopyrightⒸ 2014 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 24743785 |
| Web of Science KeyUT | 000334652700005 |
| 関連URL | http://ousar.lib.okayama-u.ac.jp/metadata/52523 |
| JaLCDOI | 10.18926/AMO/53023 |
|---|---|
| フルテキストURL | 68_6_339.pdf |
| 著者 | Nishie, Hiroyuki| Mizobuchi, Satoshi| Suzuki, Etsuji| Sato, Kenji| Toda, Yuichiro| Matsuoka, Junji| Morimatsu, Hiroshi| |
| 抄録 | The main purpose of this study was to determine the relationships between Japanese individualsʼ interest in living wills and their preferred end-of-life care and death locations. Questionnaires were mailed to 1,000 individuals aged ｧ50 to measure these 2 factors. We examined the associations between the respondentsʼ characteristics and their preferred care and death locations by using multinomial logistic regression models. The response rate was 74%. Home was the most frequently preferred place for end-of-life care (64%), and a palliative care unit (PCU) was the most commonly preferred place to die (51%). Living will interest was associated with a preference for care (odds ratio [OR] 4.74, 95% confidence interval [CI] 1.95-12.1) and death (OR 2.75, 95% CI 1.70-4.47) in a PCU rather than a hospital, but it was not associated with the choice between receiving care or dying at home instead of a hospital. We must consider why Japanese people think home death is impracticable. The Japanese palliative care system should be expanded to meet patientsʼ end-of-life needs, and this includes not only facilitating home care but also increasing access to PCU care. |
| キーワード | advance healthcare directive living will end-of-life care palliative care unit place of death |
| Amo Type | Original Article |
| 発行日 | 2014-12 |
| 出版物タイトル | Acta Medica Okayama |
| 巻 | 68巻 |
| 号 | 6号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 339 |
| 終了ページ | 348 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | English |
| 著作権者 | CopyrightⒸ 2014 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 25519028 |
| Web of Science KeyUT | 000346882200004 |
| 関連URL | http://ousar.lib.okayama-u.ac.jp/metadata/53134 |
| 著者 | Tsuda, Toshihide| Tokinobu, Akiko| Yamamoto, Eiji| Suzuki, Etsuji| |
|---|---|
| 発行日 | 2015 |
| 出版物タイトル | Epidemiology |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/AMO/47265 |
|---|---|
| フルテキストURL | 65_6_395.pdf |
| 著者 | Harada, Sosuke| Sato, Shuhei| Suzuki, Etsuji| Okumura, Yoshihiro| Hiraki, Takao| Gobara, Hideo| Mimura, Hidefumi| Kanazawa, Susumu| Kaji, Mitsumasa| Fujiwara, Toshiyoshi| |
| 抄録 | The aim of the present study was to assess the diagnostic usefulness of Fluorine-18 fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) in the prediction of local recurrence of malignant lung tumors by analyzing the pre-radiofrequency ablation (RFA) maximal standardized uptake value (SUVmax). We performed a historical cohort study of consecutive malignant lung tumors treated by RFA from January 2007 to May 2008 at Okayama University Hospital. We selected only lung tumors examined by PET/CT within 90 days before RFA and divided them (10 primary and 29 metastatic) into 3 groups according to their tertiles of SUVmax. We calculated recurrence odds ratios in the medium group and the high group compared to the low group using multivariate logistic analysis. After we examined the relationship between SUVmax and recurrence in a crude model, we adjusted for some factors. Tumors with higher SUVmax showed higher recurrence odds ratios (medium group;1.84, high group;4.14, respectively). The tumor size also increased the recurrence odds ratio (2.67);we thought this was mainly due to selection bias because we excluded tumors less than 10mm in diameter. This study demonstrated the pre-RFA SUVmax in PET/CT may be a prognostic factor for local recurrence of malignant lung tumors. |
| キーワード | fluorodeoxyglucose (FDG) positron emission tomography (PET) standardized uptake value (SUV) radiofrequency ablation (RFA) lung |
| Amo Type | Original Article |
| 発行日 | 2011-12 |
| 出版物タイトル | Acta Medica Okayama |
| 巻 | 65巻 |
| 号 | 6号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 395 |
| 終了ページ | 402 |
| 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 | 22189480 |
| Web of Science KeyUT | 000298516900006 |
| 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 |
| 巻 | 65巻 |
| 号 | 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 Science KeyUT | 000289818800005 |
| 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 |
| 巻 | 67巻 |
| 号 | 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 Science KeyUT | 000316829900004 |
| 関連URL | http://ousar.lib.okayama-u.ac.jp/metadata/50693 |
| 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 |
| 巻 | 8巻 |
| 号 | 10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 |
| 巻 | 13巻 |
| 資料タイプ | 学術雑誌論文 |
| 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 |
| 巻 | 9巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |