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1.
Nihon Rinsho ; 63(7): 1249-53, 2005 Jul.
Article in Japanese | MEDLINE | ID: mdl-16001791

ABSTRACT

Karoshi (death by overwork) is one of social medical terms, which used by survivors of victims who attacked with cardiovascular diseases such as stroke, myocardial infarction and sudden cardiac death. In Dec. 2000, Compensation Standard of cardiovascular diseases in Workers' Insurance was changed and admitted the relationship between chronic fatigue and cardiovascular attacks. As a result, compensation numbers of Karoshi attributed to three hundred and more from about 80 cases. The Ministry of Health, Labour and Welfare thinks that most of Karoshi caused by long working hours continuing for several months, especially without payment, so that the Labour Standard Inspector Office requests to decrease overtime work more than 45 hours per month to firm administrators.


Subject(s)
Death, Sudden , Work , Female , Humans , Male
2.
J Epidemiol ; 14(3): 83-93, 2004 May.
Article in English | MEDLINE | ID: mdl-15242064

ABSTRACT

BACKGROUND: Great public concern about health effects of dioxins emitted from municipal solid waste incinerators has increased in Japan. This paper investigates the association of adverse reproductive outcomes with maternal residential proximity to municipal solid waste incinerators. METHODS: The association of adverse reproductive outcomes with mothers living within 10 km from 63 municipal solid waste incinerators with high dioxin emission levels (above 80 ng international toxic equivalents TEQ/m3) in Japan was examined. The numbers of observed cases were compared with the expected numbers calculated from national rates adjusted regionally. Observed/expected ratios were tested for decline in risk or peak-decline in risk with distance up to 10 km. RESULTS: In the study area within 10 km from the 63 municipal solid waste incinerators in 1997-1998, 225,215 live births, 3,387 fetal deaths, and 835 infant deaths were confirmed. None of the reproductive outcomes studied here showed statistically significant excess within 2 km from the incinerators. However, a statistically significant peak-decline in risk with distance from the incinerators up to 10 km was found for infant deaths (p=0.023) and infant deaths with all congenital malformations combined (p=0.047), where a "peak" is detected around 1-2 km. CONCLUSION: Our study shows a peak-decline in risk with distance from the municipal solid waste incinerators for infant deaths and infant deaths with all congenital malformations combined. However, due to the lack of detailed exposure information to dioxins around the incinerators, the observed trend in risk should be interpreted cautiously and there is a need for further investigation to accumulate good evidence regarding the reproductive health effects of waste incinerator exposure.


Subject(s)
Air Pollutants/toxicity , Dioxins/toxicity , Environmental Exposure/adverse effects , Incineration , Industrial Waste , Pregnancy Outcome/epidemiology , Smoke/adverse effects , Carcinogens , Congenital Abnormalities/epidemiology , Congenital Abnormalities/etiology , Congenital Abnormalities/mortality , Female , Fetal Death/epidemiology , Fetal Death/etiology , Humans , Infant Mortality , Infant, Newborn , Japan/epidemiology , Male , Pregnancy , Residence Characteristics , Risk Assessment , Teratogens
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