Takashi Yorifuji

Summary

Affiliation: Okayama University
Country: Japan

Publications

  1. ncbi request reprint Breastfeeding and behavioral development: a nationwide longitudinal survey in Japan
    Takashi Yorifuji
    Department of Human Ecology, Okayama University Graduate School of Environmental and Life Science, Okayama, Japan Electronic address
    J Pediatr 164:1019-1025.e3. 2014
  2. ncbi request reprint Health impact assessment of particulate matter in Tokyo, Japan
    Takashi Yorifuji
    Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Hygiene and Preventative Medicine, Okayama University, Japan
    Arch Environ Occup Health 60:179-85. 2005
  3. doi request reprint Regional impact of exposure to a polychlorinated biphenyl and polychlorinated dibenzofuran mixture from contaminated rice oil on stillbirth rate and secondary sex ratio
    Takashi Yorifuji
    Department of Human Ecology, Okayama University Graduate School of Environmental and Life Science, 3 1 1 Tsushima naka, Kita ku, Okayama 700 8558, Japan
    Environ Int 59:12-5. 2013
  4. doi request reprint What has methylmercury in umbilical cords told us? - Minamata disease
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2 5 1 Shikata cho, Kita ku, Okayama 700 8558, Japan
    Sci Total Environ 408:272-6. 2009
  5. doi request reprint Diesel vehicle emission and death rates in Tokyo, Japan: a natural experiment
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
    Sci Total Environ 409:3620-7. 2011
  6. doi request reprint Critical appraisal of the 1977 diagnostic criteria for Minamata disease
    Takashi Yorifuji
    Department of Human Ecology, Okayama University Graduate School of Environmental and Life Science, Okayama, Japan
    Arch Environ Occup Health 68:22-9. 2013
  7. doi request reprint Long-term exposure to methylmercury and psychiatric symptoms in residents of Minamata, Japan
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kita ku, Okayama, 700 8558, Japan
    Environ Int 37:907-13. 2011
  8. ncbi request reprint Regional disparities in compliance with tobacco control policy in Japan: an ecological analysis
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
    Tob Control 20:374-9. 2011
  9. doi request reprint Residential proximity to major roads and preterm births
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
    Epidemiology 22:74-80. 2011
  10. doi request reprint Associations of particulate matter with stroke mortality: a multicity study in Japan
    Takashi Yorifuji
    Department of Human Ecology, Okayama University Graduate School of Environmental and Life Science, Kita ku, Okayama, Japan
    J Occup Environ Med 55:768-71. 2013

Collaborators

Detail Information

Publications47

  1. ncbi request reprint Breastfeeding and behavioral development: a nationwide longitudinal survey in Japan
    Takashi Yorifuji
    Department of Human Ecology, Okayama University Graduate School of Environmental and Life Science, Okayama, Japan Electronic address
    J Pediatr 164:1019-1025.e3. 2014
    ..To prospectively examine the prolonged effect of breastfeeding on behavioral development...
  2. ncbi request reprint Health impact assessment of particulate matter in Tokyo, Japan
    Takashi Yorifuji
    Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Hygiene and Preventative Medicine, Okayama University, Japan
    Arch Environ Occup Health 60:179-85. 2005
    ..This assessment shows that guidelines for long-term exposure, especially for PM2.5, should be recommended in Japan...
  3. doi request reprint Regional impact of exposure to a polychlorinated biphenyl and polychlorinated dibenzofuran mixture from contaminated rice oil on stillbirth rate and secondary sex ratio
    Takashi Yorifuji
    Department of Human Ecology, Okayama University Graduate School of Environmental and Life Science, 3 1 1 Tsushima naka, Kita ku, Okayama 700 8558, Japan
    Environ Int 59:12-5. 2013
    ..483 (95% confidence interval: 0.457 to 0.508) in the first 10years after exposure. Exposure to a mixture of PCBs and PCDFs affected stillbirth and sex ratio for a decade and a half after the exposure. ..
  4. doi request reprint What has methylmercury in umbilical cords told us? - Minamata disease
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2 5 1 Shikata cho, Kita ku, Okayama 700 8558, Japan
    Sci Total Environ 408:272-6. 2009
    ..Furthermore, the temporal and spatial distributions of the methylmercury concentrations in the umbilical cords tell us the history of the Minamata disease incident...
  5. doi request reprint Diesel vehicle emission and death rates in Tokyo, Japan: a natural experiment
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
    Sci Total Environ 409:3620-7. 2011
    ..This natural experiment in Tokyo suggests that emission controls improved air quality. Although suggestive, further data are needed to conclusively demonstrate an impact on mortality rates...
  6. doi request reprint Critical appraisal of the 1977 diagnostic criteria for Minamata disease
    Takashi Yorifuji
    Department of Human Ecology, Okayama University Graduate School of Environmental and Life Science, Okayama, Japan
    Arch Environ Occup Health 68:22-9. 2013
    ..The current diagnostic criteria as well as the official certification system substantially underestimate the incidence of Minamata disease...
  7. doi request reprint Long-term exposure to methylmercury and psychiatric symptoms in residents of Minamata, Japan
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kita ku, Okayama, 700 8558, Japan
    Environ Int 37:907-13. 2011
    ..g., impairment of intelligence and mood and behavioral dysfunction) is still limited-excluding cases of fetal Minamata disease patients...
  8. ncbi request reprint Regional disparities in compliance with tobacco control policy in Japan: an ecological analysis
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
    Tob Control 20:374-9. 2011
    ..The slow progress of tobacco control policy in Japan reflects the tension among the interests of the Finance Ministry (which remains the majority shareholder of Japan Tobacco, Inc), the Health Ministry, tobacco growers and consumers...
  9. doi request reprint Residential proximity to major roads and preterm births
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
    Epidemiology 22:74-80. 2011
    ..We evaluated the association between proximity to major roads (as an index for air pollution) and preterm births, classified by gestational age and specific clinical manifestations...
  10. doi request reprint Associations of particulate matter with stroke mortality: a multicity study in Japan
    Takashi Yorifuji
    Department of Human Ecology, Okayama University Graduate School of Environmental and Life Science, Kita ku, Okayama, Japan
    J Occup Environ Med 55:768-71. 2013
    ..Evidence linking short-term exposure to outdoor air pollution with hemorrhagic stroke is inconclusive...
  11. doi request reprint The role of medicine in the decline of post-War infant mortality in Japan
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
    Paediatr Perinat Epidemiol 25:601-8. 2011
    ..Furthermore, the post-War history of Japan illustrates that improvement in infant mortality is attributable to the influence of medical care, even in the absence of rapid economic development...
  12. ncbi request reprint Age standardized cancer mortality ratios in areas heavily exposed to methyl mercury
    Takashi Yorifuji
    Hygiene and Preventive Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2 5 1 Shikata cho, Okayama, 700 8558, Japan
    Int Arch Occup Environ Health 80:679-88. 2007
    ..Therefore, we explored this association using the age standardized mortality ratio (ASMR) in an ecologic study over a wide area allowing for a long empirical induction period...
  13. ncbi request reprint Long-term exposure to methylmercury and neurologic signs in Minamata and neighboring communities
    Takashi Yorifuji
    Department of Hygiene and Preventive Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
    Epidemiology 19:3-9. 2008
    ..However, in contrast to Iraq, there have been few sound epidemiologic studies in Minamata. We evaluated the effect of methylmercury on neurologic signs using data from a 1971 population-based study...
  14. ncbi request reprint Total mercury content in hair and neurologic signs: historic data from Minamata
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
    Epidemiology 20:188-93. 2009
    ..That study leaves open the possibility of more subtle effects at lower exposure levels...
  15. doi request reprint Long-term exposure to traffic-related air pollution and the risk of death from hemorrhagic stroke and lung cancer in Shizuoka, Japan
    Takashi Yorifuji
    Department of Human Ecology, Okayama University Graduate School of Environmental and Life Science, 1 1 1 Tsushima naka, Okayama 700 8530, Japan
    Sci Total Environ 443:397-402. 2013
    ....
  16. doi request reprint Long-term exposure to traffic-related air pollution and mortality in Shizuoka, Japan
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2 5 1 Shikata cho, Kita ku, Okayama City, Okayama Pref 700 8558, Japan
    Occup Environ Med 67:111-7. 2010
    ..Therefore, we evaluated the health effects of long-term exposure to traffic-related air pollution in Shizuoka, Japan...
  17. doi request reprint Oseltamivir and abnormal behaviors: true or not?
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
    Epidemiology 20:619-21. 2009
    ..A correct analysis (based on person-time) shows a rate ratio of 1.57 (95% confidence interval = 1.34-1.83). This example clearly illustrates the importance of person-time in the analysis of cohort studies...
  18. ncbi request reprint Does open-air exposure to volatile organic compounds near a plastic recycling factory cause health effects?
    Takashi Yorifuji
    Department of Human Ecology, Okayama University Graduate School of Environmental and Life Science, Japan
    J Occup Health 54:79-87. 2012
    ..Therefore, we conducted an exposure assessment and a population-based epidemiological study in 2006...
  19. doi request reprint Residential proximity to major roads and placenta/birth weight ratio
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2 5 1 Shikata cho, Kita ku, Okayama 700 8558, Japan
    Sci Total Environ 414:98-102. 2012
    ..Impaired placental oxygen and nutrient transport function might be a mechanism for explaining the observed association between air pollution and low birth weight as well as preterm birth...
  20. doi request reprint Associations of outdoor air pollution with hemorrhagic stroke mortality
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2 5 1 Shikata cho, Kita ku, Okayama, 700 8558, Japan
    J Occup Environ Med 53:124-6. 2011
    ..Evidence linking short-term exposure to outdoor air pollution with hemorrhagic stroke is inconsistent...
  21. pmc Trends of preterm birth and low birth weight in Japan: a one hospital-based study
    Takashi Yorifuji
    Department of Human Ecology, Okayama University Graduate School of Environmental and Life Science, 3 1 1 Tsushima naka, Kita ku, Okayama, 700 8530, Japan
    BMC Pregnancy Childbirth 12:162. 2012
    ..birth weight less than 2500 g at delivery) have been rising in developed countries. We sought to examine the factors contributing to the rise in Japan, with particular focus on the effects of obstetric interventions...
  22. doi request reprint Physical activity and mortality risk in the Japanese elderly: a cohort study
    Kazumune Ueshima
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
    Am J Prev Med 38:410-8. 2010
    ..Physical activity recommendations for older adults with poor health needs to be understood...
  23. doi request reprint Green tea consumption and mortality among Japanese elderly people: the prospective Shizuoka elderly cohort
    Etsuji Suzuki
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700 8558, Japan
    Ann Epidemiol 19:732-9. 2009
    ..To investigate the association between green tea consumption and mortality from all causes, cancer, and cardiovascular disease (CVD) among elderly people...
  24. doi request reprint Application of land use regression to regulatory air quality data in Japan
    Saori Kashima
    Department of International Health, Okayama University Graduate School of Environmental Science, Okayama, Japan
    Sci Total Environ 407:3055-62. 2009
    ..11). The present study showed that even if we used regulatory monitoring air quality data, we could estimate NO2 moderately well. This result could encourage the wide use of LUR models in Asian countries...
  25. doi request reprint Effects of traffic-related outdoor air pollution on respiratory illness and mortality in children, taking into account indoor air pollution, in Indonesia
    Saori Kashima
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700 8558, Japan
    J Occup Environ Med 52:340-5. 2010
    ..To evaluate the effects of outdoor air pollution, taking into account indoor air pollution, in Indonesia...
  26. doi request reprint Sleep duration, sleep quality and cardiovascular disease mortality among the elderly: a population-based cohort study
    Etsuji Suzuki
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2 5 1 Shikata cho, Kita ku, Okayama 700 8558, Japan
    Prev Med 49:135-41. 2009
    ..To investigate the associations between sleep duration and mortality in the elderly by controlling for sleep quality...
  27. ncbi request reprint Does habitual physical activity prevent insomnia? A cross-sectional and longitudinal study of elderly Japanese
    Sachiko Inoue
    Dept of Human Ecology, Okayama University, Okayama, Japan
    J Aging Phys Act 21:119-39. 2013
    ..For elderly people with sufficient mobility and no preexisting disease, high-frequency physical activity (e.g., 5 or more days/wk) may help reduce insomnia...
  28. doi request reprint Breastfeeding and obesity among schoolchildren: a nationwide longitudinal survey in Japan
    Michiyo Yamakawa
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
    JAMA Pediatr 167:919-25. 2013
    ..Most of the participants in the previous studies were children in Western developed countries, so studies in a different context are awaited...
  29. pmc Social cohesion and mortality: a survival analysis of older adults in Japan
    Sachiko Inoue
    Sachiko Inoue, Soshi Takao, and Hiroyuki Doi are with the Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan Sachiko Inoue is also with and Ichiro Kawachi is with the Department of Society, Human Development, and Health, Harvard School of Public Health, Boston, MA Takashi Yorifuji is with the Department of Human Ecology, Okayama University Graduate School of Environmental and Life Science, Okayama, Japan
    Am J Public Health 103:e60-6. 2013
    ..We examined the association between social cohesion and mortality in a sample of older adults in Japan...
  30. doi request reprint Long-term exposure to methylmercury and its effects on hypertension in Minamata
    Takashi Yorifuji
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2 5 1 Shikata cho, Okayama 700 8558, Japan
    Environ Res 110:40-6. 2010
    ..1-1.9), respectively. Furthermore, dose-response trends with hair mercury content were observed for both hypertension outcomes. The present finding supports the causal relationship between methylmercury exposure and hypertension...
  31. ncbi request reprint Frequency of antenatal care visits and neonatal mortality in Indonesia
    Juliani Ibrahim
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2 5 1 Shikata cho, Okayama City, Okayama, Japan
    J Trop Pediatr 58:184-8. 2012
    ..To examine the relationship between frequency of antenatal care visits, as a whole and in each trimester, and neonatal mortality in Indonesia...
  32. ncbi request reprint Who is at risk of inadequate weight gain during pregnancy? Analysis by occupational status among 15,020 deliveries in a regional hospital in Japan
    Sachiko Inoue
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2 5 1 Shikata cho, Kita ku, Okayama, 700 8558, Japan
    Matern Child Health J 17:1888-97. 2013
    ..Japanese women from higher socioeconomic backgrounds appear to be at greater risk for inadequate weight gain. This result may contribute to enhancing prenatal education on pregnancy-related weight gain in Japan. ..
  33. ncbi request reprint Cardiovascular emergency hospital visits and hourly changes in air pollution
    Takashi Yorifuji
    From the Department of Human Ecology, Graduate School of Environmental and Life Science T Y, and Department of Epidemiology, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences E S, Okayama University, Okayama, Japan and Department of Public Health and Health Policy, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan S K
    Stroke 45:1264-8. 2014
    ..Few studies have examined the effect of hourly changes in air pollution on cardiovascular disease morbidity. We evaluated the associations between hourly changes in air pollution and the risks of several types of cardiovascular disease...
  34. doi request reprint Association of birth length and risk of hospitalisation among full-term babies in Japan
    Tsuguhiko Kato
    Department of Human Ecology, Okayama University Graduate School of Environmental and Life Science, Japan
    Paediatr Perinat Epidemiol 27:361-70. 2013
    ..However, the literature on birth length is considerably more sparse compared with birthweight. We, therefore, examined the relationship between birth length and hospitalisation early in life among Japanese children...
  35. ncbi request reprint Is There Any Association between TV Viewing and Obesity in Preschool Children in Japan?
    Ayako Sasaki
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700 8558, Japan
    Acta Med Okayama 64:137-42. 2010
    ..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...
  36. pmc Visual evoked potentials in children prenatally exposed to methylmercury
    Takashi Yorifuji
    Department of Human Ecology, Okayama University Graduate School of Environmental and Life Science, Okayama 700 8530, Japan
    Neurotoxicology 37:15-8. 2013
    ..However, this association was apparent only after adjustment for n-3 PUFA status...
  37. doi request reprint Short-term effect of severe exposure to methylmercury on atherosclerotic heart disease and hypertension mortality in Minamata
    Sachiko Inoue
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2 5 1 Shikata cho, Kita ku, Okayama, 700 8558, Japan
    Sci Total Environ 417:291-3. 2012
    ..38, CI; 1.06-1.80); but they decreased later. Although dilution is present in this ecological study, our study supports the notion that methylmercury exposure induces hypertension...
  38. ncbi request reprint [Causal Inference in Medicine Part II. Directed acyclic graphs--a useful method for confounder selection, categorization of potential biases, and hypothesis specification]
    Etsuji Suzuki
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Shikata cho, Kita ku, Okayama, Japan
    Nihon Eiseigaku Zasshi 64:796-805. 2009
    ..Finally, (3) we have briefly reviewed other approaches to causal inference, and illustrate how these models are connected...
  39. ncbi request reprint Impact of breastfeeding on body weight of preschool children in a rural area of Japan: population-based cross-sectional study
    Hirokazu Komatsu
    Department of Epidemiolgy, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700 8558, Japan
    Acta Med Okayama 63:49-55. 2009
    ....
  40. doi request reprint Minamata disease: catastrophic poisoning due to a failed public health response
    Toshihide Tsuda
    Department of Environmental Epidemiology, Okayama University Graduate School of Environmental Science, 1 1 Tsushima naka, 3 Chome, Kita ku, Okayama 700 8530, Japan
    J Public Health Policy 30:54-67. 2009
    ..The history of Minamata disease shows us the consequences when public health responses are not implemented. Minamata disease should be an invaluable lesson for future public health responses...
  41. ncbi request reprint Environmental factors and seasonal influenza onset in Okayama city, Japan: case-crossover study
    Yuuki Tsuchihashi
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700 8558, Japan
    Acta Med Okayama 65:97-103. 2011
    ..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...
  42. ncbi request reprint [Causal inference in medicine part I--counterfactual models--an approach to clarifying discussions in research and applied public health]
    Etsuji Suzuki
    Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Shikatacho, Kita ku, Okayama, Japan
    Nihon Eiseigaku Zasshi 64:786-95. 2009
    ..In addition, we show how understanding the counterfactual model can lay the foundation for correct interpretation of epidemiologic evidence...
  43. ncbi request reprint Does habitual physical activity prevent insomnia? A cross-sectional and longitudinal study of elderly Japanese
    Sachiko Inoue
    Dept of Epidemiology, Okayama University, Okayama, Japan
    J Aging Phys Act 21:119-39. 2013
    ..For elderly people with sufficient mobility and no preexisting disease, high-frequency physical activity (e.g., 5 or more days/wk) may help reduce insomnia...
  44. ncbi request reprint Industrial distributions of severe occupational injuries among workers in Thailand
    Michiyo Yamakawa
    Department of Epidemiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
    J Occup Health 55:415-21. 2014
    ..Therefore, we examined industrial distributions and risks of severe occupational injuries among workers in Thailand, which is one of the few industrializing countries that compiles nationwide data...
  45. ncbi request reprint Factors affecting appropriate management of patients with sexually transmitted infections in Japan
    Tomoe Kodama
    Department of Epidemiology, Okayama University Graduate School of Medicine, Detistry and Pharmaceucial Sciences, Okayama 700 8558, Japan
    Acta Med Okayama 64:171-9. 2010
    ..82). Physicians who diagnosed more than 20 STI patients tended not to provide appropriate management. These findings suggest the necessity for better physician management of patients for effective prevention of STIs...
  46. ncbi request reprint Inhibitory function and working memory in attention deficit/hyperactivity disorder and pervasive developmental disorders: does a continuous cognitive gradient explain ADHD and PDD traits?
    Akihito Takeuchi
    Department of Child Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama
    Acta Med Okayama 67:293-303. 2013
    ..AD/HD and PDD share neuropsychological features, though each disorder has a specific impairment pattern. Our findings partially support the idea that AD/HD and PDD are on a spectrum...