著者

Akemi Kurisu Aya Sugiyama Tomoyuki Akita Ichiro Takumi Hitoshi Yamamoto Koji Iida Junko Tanaka

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20220316, (Released:2023-02-25)

参考文献数

17

被引用文献数

2

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Introduction: The burden of epilepsy is thought to be high but is difficult to measure. Very few studies in Japan have attempted to estimate prevalence and incidence rates of epilepsy in Japan.Methods: This retrospective cohort study used commercially collected nationwide insurance claims data from a cohort of 10M persons between 2012 and 2019 among those aged 0 to 74 years. Using the claims data, cases were identified, and incidence and prevalence rates were estimated.Results: A total of 9,864,278 persons were included. The average age was 34.5 (± SD 18.5) years. A total of 77,312 persons were diagnosed with epilepsy over the 8-year observation period with a prevalence rate of 6.0 per 1,000 with almost no difference by gender. The highest rates were seen among those aged 70-74 years; prevalence rates tended to rise with calendar year (5.4/1,000 in 2012, 6.0/1,000 in 2019). The incidence rate of epilepsy was 72.1 per 100,000 person-years with slightly higher rates seen among females. Incidence rates were highest at ages less than 12 months (199.8/100,000 person-years), followed by the eldest age group (70-74 years, 179.4/100,000 person-years)Conclusions: Understanding the magnitude of disease burden is the basis of determining health policies. In this study, the prevalence and incidence of epilepsy in Japan was shown based on the analysis results of a large-scale general population insurance claims data covering all over Japan.

著者

Eiko Saito Shiori Tanaka Sarah Krull Abe Mayo Hirayabashi Junko Ishihara Kota Katanoda Yingsong Lin Chisato Nagata Norie Sawada Ribeka Takachi Atsushi Goto Junko Tanaka Kayo Ueda Megumi Hori Tomohiro Matsuda Manami Inoue

出版者

National Center for Global Health and Medicine

雑誌

Global Health & Medicine (ISSN:24349186)

巻号頁・発行日

pp.2023.01001, (Released:2023-05-04)

参考文献数

34

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Controlling avoidable causes of cancer may save cancer-related healthcare costs and indirect costs of premature deaths and productivity loss. This study aimed to estimate the economic burden of cancer attributable to major lifestyle and environmental risk factors in Japan in 2015. We evaluated the economic cost of cancer attributable to modifiable risk factors from a societal perspective. We obtained the direct medical costs for 2015 from the National Database of Health Insurance Claims and Specific Health Checkups of Japan, and estimated the indirect costs of premature mortality and of morbidity due to cancer using the relevant national surveys in Japan. Finally, we estimated the economic cost of cancer associated with lifestyle and environmental risk factors. The estimated cost of cancer attributable to lifestyle and environmental factors was 1,024,006 million Japanese yen (\) (8,460 million US dollars [$]) for both sexes, and \673,780 million ($5,566 million) in men and \350,226 million ($2,893 million) in women, using the average exchange rate in 2015 ($1 = \121.044). A total of \285,150 million ($2,356 million) was lost due to premature death in Japan in 2015. Indirect morbidity costs that could have been prevented were estimated to be \200,602 million ($1,657 million). Productivity loss was highest for stomach cancer in men (\28,735 million/$237 million) and cervical cancer in women (\24,448 million/$202 million). Preventing and controlling cancers caused by infections including Helicobacter pylori, human papillomavirus and tobacco smoking will not only be life-saving but may also be cost-saving in the long run.

著者

山野 則子 田中 淳子 杉岡 利沙 浅野 真弓 Norikok Yamano Junko Tanaka Risa Sugioka Mayumi Asano

出版者

大阪府立大学人間社会学部社会福祉学科

雑誌

社会問題研究 (ISSN:09124640)

巻号頁・発行日

vol.62, no.141, pp.13-25, 2013-02

著者

Kanon Abe Aya Sugiyama Noriaki Ito Kei Miwata Yoshihiro Kitahara Mafumi Okimoto Ulugbek Mirzaev Akemi Kurisu Tomoyuki Akita Ko Ko Kazuaki Takahashi Tatsuhiko Kubo Toshiro Takafuta Junko Tanaka

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

pp.JE20230103, (Released:2023-08-12)

参考文献数

44

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BackgroundSymptoms after COVID-19 recovery by SARS-CoV-2 strains are unspecified.MethodsThis self-administered questionnaire-based study was conducted to investigate symptoms after COVID-19 recovery at one of the main hospitals for COVID-19 treatment in Hiroshima, Japan, from September 2020 to March 2022 for patients who visited follow-up consultations after COVID-19. Study subjects were divided into four groups (Wild-type, Alpha, Delta, and Omicron periods) according to COVID-19 onset date. Hierarchical cluster analysis was performed to determine symptom clusters and investigate risk factors for each symptom cluster using multivariate analysis.ResultsAmong 385 patients who enrolled in this study, 249 patients had any persistent symptoms at a median of 23.5 [IQR, 20-31] days after COVID-19 onset. Among patients with any persistent symptoms, symptom clusters including olfactory or taste disorders, respiratory symptoms, and cardiac symptoms were found. Respiratory symptoms were more frequent among patients infected in the Omicron period compared to the Wild-type period (AOR, 3.13; 95% CI, 1.31-7.48; p=0.0101). Compared to patients who recovered from mild COVID-19, patients who needed for oxygen or ventilation support suffered fewer post-COVID-19 respiratory symptoms (AOR, 0.46; 95% CI, 0.22-0.97; p=0.0415) but more post-COID-19 cardiac symptoms among them (AOR, 2.67; 95% CI, 1.26-5.65; p=0.0103). Olfactory or taste disorders were fewer among patients infected in the Omicron period compared to the Wild-type period (AOR, 0.14; 95% CI, 0.04-0.46; p=0.0011).ConclusionThis study revealed that symptoms after COVID-19 may vary depending on the infected strain.

著者

Aya Sugiyama Fumie Okada Kanon Abe Hirohito Imada Serge Ouoba Bunthen E Md Razeen Ashraf Hussain Masayuki Ohisa Ko Ko Shintaro Nagashima Tomoyuki Akita Shinichi Yamazaki Michiya Yokozaki Eisaku Kishita Junko Tanaka

出版者

The Japanese Society for Hygiene

雑誌

Environmental Health and Preventive Medicine (ISSN:1342078X)

巻号頁・発行日

vol.27, pp.30, 2022 (Released:2022-07-07)

参考文献数

49

被引用文献数

3

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Background: This longitudinal study aimed to determine chronological changes in the seroprevalence of prior SARS-CoV-2 infection, including asymptomatic infections in Hiroshima Prefecture, Japan.Methods: A stratified random sample of 7,500 residents from five cities of Hiroshima Prefecture was selected to participate in a three-round survey from late 2020 to early 2021, before the introduction of the COVID-19 vaccine. The seroprevalence of anti–SARS-CoV-2 antibodies was calculated if at least two of four commercially available immunoassays were positive. Then, the ratio between seroprevalence and the prevalence of confirmed COVID-19 cases in Hiroshima was calculated and compared to the results from other prefectures where the Ministry of Health, Labour and Welfare conducted a survey by using the same reagents at almost the same period.Results: The numbers of participants in the first, second, and third rounds of the survey were 3025, 2396, and 2351, respectively and their anti-SARS-CoV-2 antibodies seroprevalences were 0.03% (95% confidence interval: 0.00–0.10%), 0.08% (0.00–0.20%), and 0.30% (0.08–0.52%), respectively. The ratio between the seroprevalence and the prevalence of confirmed COVID-19 cases in Hiroshima was 1.2, which was smaller than that in similar studies in other prefectures.Conclusions: The seroprevalence of anti–SARS-CoV-2 antibodies in Hiroshima increased tenfold in a half year. The difference between seroprevalence and the prevalence of confirmed COVID-19 cases in Hiroshima was smaller than that in other prefectures, suggesting that asymptomatic patients were more actively detected in Hiroshima.

著者

Ko Ko Tomoyuki Akita Masahiro Satake Junko Tanaka

出版者

National Center for Global Health and Medicine

雑誌

Global Health & Medicine (ISSN:24349186)

巻号頁・発行日

pp.2021.01069, (Released:2021-08-13)

参考文献数

33

被引用文献数

4

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Although HCV infection was the main cause of HCC in Japan contributing 70% over two decades after its first cloning in 1989, it was markedly decreased to 49% in 2013 and expected to decrease continuously. Based on blood donor national database, the new incident cases were 0.4/100,000 person-years, the prevalence was 0.13% and the total number was 890,902-1,302,179 in 2015. Establishment of blood donor screening with anti-HCV measurement and nucleic acid test introduced by Japanese Red Cross as pioneer, high-level medical and surgical care, and the government's policy under the Basic Act on Hepatitis Control have changed its epidemiology and outbreak trend and also enforced the disruption of potential transmission cascades. HCV prevalence among the younger generation was extremely low in all regions, and the predominant age for HCC has shifted to over 60 years old population. Considering such changes, HCV induced HCC occurrence is supposed to be ultimately suppressed in the near future. However, taking into account society changes, regulating intravenous drugs users and monitoring high-risk groups such as tattoos, and men who have sex with men are indeed required in Japan. Understanding the epidemiological changes in HCV is important in assigning, modifying, and designating effective response systems. Selective or national action plans, strategic approaches, and cooperation between government sectors have a positive impact on HCV prevention and control. A dramatic decrease in total number of HCV carriers, increase in number of people treated with highly effective DAA, and subsequent high SVR indicates Japan might achieve WHO's target of HCV elimination by 2030.

著者

Masaya MIYAZONO Katsunori TORII Mayu YAMAMOTO Junko TANAKA Masahiro TANAKA

出版者

Osaka Odontological Society

雑誌

Journal of Osaka Dental University (ISSN:04752058)

巻号頁・発行日

vol.53, no.2, pp.179-186, 2019-10-25 (Released:2020-01-25)

参考文献数

22

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We attempted to clarify how the impressions imparted on observers are affected by smiles with exposed teeth. Sixty young adults participated in the study, 23 men and 37 women, who had a mean age of 23±2 years. Impressions of composite (average) male and female faces were rated to eliminate individual bias. Ten facial photos were processed for each of 10 adult males with a mean age of 25±2 years and 10 adult females with a mean age of 26±1 years. Three stimulus images were used for each gender: a neutral face (teeth hidden), a smiling face (teeth hidden), and a grinning face (teeth exposed). The average male faces were rated by 30 subjects and the average female faces by the other 30. The semantic differential method was used to rate the impressions. Group ratings were then subjected to factor analysis. The two common factors having the greatest explanatory power were: “Sociable" and “Active" for the male stimulus images and “Friendly" and “Elegant" for the females. Significant differences between stimuli were observed for scores on both the first and second factors. In all cases, the grin was rated highest, followed by the smile and neutral face. We found that when smiling with the teeth exposed, male faces give a strong impression of sociability and activity, while females give a strong impression of friendliness and elegance. (J Osaka Dent Univ 2019; 53: 179‐186)