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This study is to calculate a risk of lung cancer in a cohort of 1411 sarcoidosis cases which were followed for a 3 year period from 1984 to 1987. The physicians were requested to answer the questionnaire about progress of the disease by mail. Excess death was investigated using standardized mortality ratio (SMR). The expected number of deaths was calculated from Japanese sex-age specific mortality rate in 1985, using person-year method. Death from all causes and cancers did not show any excess. SMR being 0.98 and 0.97 respectively. The SMR of lung cancer was 3.26 (male: 5.56, female: 3.03), being statistically significant. The SMR of lung infection was 4.2, with statistical significance. The SMR of other main causes of death in Japan i.e., cerebrovascular accident, ischemic heart diseases and heart failure was less than 0.88. It is probably that sarcoidosis is a risk factor of lung cancer. The SMR of leukemia and uterine cancer was 5.88 and 8.70, respectively, though the observed number of leukemia was too small to conclude how high the cancer risk is among sarcoidosis patients. Gastric cancer, hepatic cancer and colon cancers were not observed.
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PMID:Excess death of lung cancer among sarcoidosis patients. 166 41

Researchers analyzed 1983 vital statistics for Taiwan using the life table analysis and calculating the potential years of life lost (PYLL) to identify life shortening features of several major causes of death and examine the preventability of premature mortality. Life expectancy for males was 69.9 years whereas for females it was 75.1 years. these corresponding life expectancies for Japan were 73.8 years and 79.6 years and 71.7 years and 78.7 years for the US. Between 1950-1983, life expectancy at birth in Taiwan increased 17.5 years for males and 19 years for females. In 1983, the cumulative total of PYLL before age 70 for males was 737,205 compared to 353,780 years for females. Thus loss of productivity of males was 2 times that of females. Most of this loss was a result of accidents. In fact, they contributed to 37.2% of PYLL for males and 24.9% of PYLL for females. Even though accidents were also the leading cause for the most PYLL in Japan and the US (17.4% and 8.7% respectively in Japan and 25% for both sexes combined in the US), the magnitude was considerably lower than that of Taiwan. Further the type of accidents males were more likely to die from were motor vehicle accidents (18,8% vs. 18.4% for home and workplace accidents). On the other hand, women were more likely to die from home and workplace accidents(14% vs. 10%). The 2nd major cause for the most PYLL was all cancers, except liver cancer, (15.9% for males and 20.4% for females). The 3rd major cause for the most PYLL for males was liver disease (liver cancer and cirrhosis of the liver) (9.6%) while for females it was stroke (8.7%). Further suicides contributed to 6.5% of PYLL for females. IN conclusion, Taiwan should place accident prevention as a high priority since it needs limited resources and is more achievable than that of cancer elimination. The next level of preventive efforts should include stroke and suicide.
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PMID:Mortality trend in a rapidly developing economy in Taiwan. Part II: Life expectancy and "potential years of life lost". 179 32

To study the effect of the environments shared by spouses on the development of cancer and some chronic diseases, we analyzed the correspondence of disease history in 21,592 fathers and mothers using the baseline data of a population-based cohort study. The observed number of cases (O) whose parents had the same disease history was statistically significantly greater than the expected (E); the O/E ratio was 1.53 (95% confidence interval (CI): 1.43-1.63) for all malignant neoplasms, 5.22 (95% CI: 2.81-9.70) for esophageal cancer, 1.63 (95% CI: 1.37-1.93) for stomach cancer, 3.01 (95% CI: 1.89-4.79) for colorectal cancer, 3.90 (95% CI: 2.75-5.53) for liver cancer, 3.14 (95% CI: 1.95-5.08) for lung cancer, 6.73 (95% CI: 2.53-17.87) for bladder cancer, 1.66 (95% CI: 1.54-1.78) for apoplexy and 1.67 (95% CI: 1.51-1.86) for heart disease. The results of the present study suggest that the environmental factors shared by family members for a long time may contribute to familial aggregation of cancer and some chronic diseases.
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PMID:Correspondence in cancer history between husbands and wives. 211 61

We studied whether familial case histories of a liver cancers might be associated with the high mortality rate from liver cancers in Saga prefecture. Examined were 285 familial case histories of a hepatocellular carcinoma (HCC) incurred by parents, siblings, and children during the past 10 years. Familial case histories of patients with a gastric cancer and/or apoplexy also were studied as controls. The incidence of various types of cancers, including liver cancers and gastric cancers, in the family members of the HCC group was found to be the same as seen in family members of the gastric cancer group, but higher than in the families of the apoplexy group. Further, the HCC incidence rate in family members in the HCC group was not high as compared to the average for the whole of Japan. The HBsAg was not found to be associated with the rate of liver cancer in family members in the HCC group. Also, there was no high incidence of liver cancer was observed in children of parents with a liver cancer. From these results, we have concluded that high incidence of liver cancer seen in Saga prefecture was not associated with any familial clustering of HCC cases.
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PMID:[A study of familial case histories of hepatocellular carcinoma--285 cases in Saga Prefectural Hospital]. 215 31

The benefits and risks of both oral contraceptives and estrogen replacement therapy (ERT) are evaluated by summarizing briefly the results of the most evidential studies on breast, ovarian, endometrial, and hepatobiliary cancer, heart attack, stroke and venous thromboembolism. The methods used to estimate risk ratios, prospective random-allocation, double-blind trials, and retrospective case- controlled studies, are explained briefly. The ERT used today resemble sequential oral contraceptives, except that only 10-20 mcg ethinyl estradiol is taken for 25 days, and progestins are used on the last 10 days. Breast cancer risk is not different in pill users from nonusers, based on the U.K. General PRactitioner, Oxford Family Planning, Harvard nurses or U.S. SEER National Cancer Institute studies. Studies on ERT and breast cancer are mixed, but only injected estrogens raised the risks. Ovarian cancer is prevented by pill use in proportion to length of use. No studies were reported for ERT. The risk of hepatic cancer is 3.8 to 7.8 higher in pill users, but the number of cases is so rare that this should not affect prescriptions. Neither pill nor ERT raise the risk of myocardial infarction, and after premature surgical menopause, ERT lowers the risk. Based on studies done in the 1970s, oral contraceptives raise the risk of thrombotic stroke while women are taking them, from 10-13/100,000 to 41/100,000. ERT has no clear association with stroke. Similarly, orals increase the risk of venous thromboembolism, 8-fold in the Oxford Family Planning study published in 1986, although the absolute numbers are very small. ERT had no effects no risk of thromboembolism according to the lipid Research, Framingham and Nachtigall studies.
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PMID:The risks of oral contraceptives and estrogen replacement therapy. 268 99

Mortalities from selected causes from 1973 to 1982 among Koreans, Chinese, and Americans residing in Japan were compared with those of Japanese. In the Korean population, besides the well-documented excess in mortalities from liver cancer, lung cancer, liver cirrhosis and male tuberculosis, a rather prominent elevation was observed for mortalities from female tuberculosis and diabetes mellitus in both sexes. Distinctive features in the Chinese population were increased mortalities from liver cancer and female lung cancer and lowered mortality from stomach cancer, and these findings are consistent with the observations among Chinese in other areas. Mortalities from diabetes mellitus and liver cirrhosis was moderately increased in this population as well. Americans in Japan by and large showed a mortality pattern similar to that in the US although mortality from stroke among female Americans was rather elevated during the period 1973-1977. Epidemiological studies on Koreans and Chinese in Japan with reference to their lifestyle are strongly required.
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PMID:Cause-specific mortality among Koreans, Chinese and Americans in Japan, 1973-1982. 366 40

The relationship between drinking habit surveyed in 1965 and cause-specific mortality over 19 years was investigated in 5135 male Japanese physicians taking into account smoking habit and separating ex-drinker from non-drinker. As compared with non-drinkers, daily drinkers with high consumption had a significantly increased mortality from all causes. Drinking was significantly related to the so-called alcohol-related causes of death; upper aerodigestive cancer, liver cancer and liver cirrhosis. Mortality from acute myocardial infarction was inversely related to drinking, whereas other coronary heart disease showed a somewhat higher mortality among men consuming a large amount of alcohol than among non-drinkers. There was a weak, but significant, association between stroke and drinking, and the relation did not differ between haemorrhagic stroke and other stroke. No obvious relationship with drinking was observed for cancers of the stomach, large bowel, pancreas and lung.
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PMID:Alcohol and mortality: a cohort study of male Japanese physicians. 381 61

Nine (1.66%) out of 542 cases of HCC treated surgically in our hospital between 1985 and 1992, had macroscopic bile duct thrombi. Three cases presented preoperatively with obstructive jaundice. Two of these received thrombectomy in the hilar bile duct and died of hepatic insufficiency on postoperative days 10 and 66, the other case underwent extended left lobectomy, but also died of renal failure and sepsis 3 months after the operation. In addition, we also treated 6 cases diagnosed at earlier stages than those presenting with obstructive jaundice with both hepatectomy and thrombectomy. In these patients the outcome was as follows: 2 died of recurrent HCC 3 months and 16 months, respectively, after operation, 1 died of apoplexy with no recurrence after 19 months, 1 had a recurrence 5 months after the operation, but is still alive after 7 months, and 2 are still alive 24 months and 60 months after surgery with no recurrence. The outcome is still poor in our series with obstructive jaundice. But in this report, we propose radical surgical treatment for HCC with bile duct thrombi in accordance with our classification, especially for those cases without obstructive jaundice.
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PMID:Classification and surgical treatment of hepatocellular carcinoma (HCC) with bile duct thrombi. 795 70

A self-reported questionnaire on the health status, life habits, and social background was conducted at baseline in the Japan Public Health Center-based Prospective Study on Cancer and Cardiovascular Diseases (JPHC study). This report presents the outcome of the study regarding past or family history of various diseases, medical treatment, life habits such as physical labor or sports, and social background among study participants. In both cohorts I and II, prevalent past and family history included hypertension, stroke, and cancer, whereas the prevalence of coronary heart diseases was historically low. The prevalence of a past history of hypertension and stroke was higher in the northern part of Japan, Ninohe, and Yokote, and lower in Okinawa, compared to the other districts. The prevalence of participants with a history of stomach cancer and liver cancer was higher in Arikawa than in other districts. The frequency of participants who took medication from doctors ranged from 20% to 30%, higher in the Tohoku areas, and lower in Okinawa compared to the other districts. All districts showed a high rate of over 70% for the participation rate for basic health examination conducted by the local government, The rate was particularly high in the Tohoku area where a high prevalence of a history of hypertension was found. The frequency of persons who had a chance to participate in sports or physical exercise was high in Okinawa and Suita subcohort 2, although the mean total physical activity (both at work and for leisure time) was lowest in the latter subcohort. No substantial differences were found in compositions of personality among districts. The frequency of more active and positive persons, however, was relatively higher in urban areas and lower in Okinawa compared to the other districts. The association between the differences of health status, life habits, and social background and the occurrence of various lifestyle-related diseases will be clarified in a follow-up study within the JPHC study.
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PMID:Health status, life habits, and social background among the JPHC study participants at baseline survey. Japan Public Health Center-based Prospective Study on Cancer and Cardiovascular Diseases. 1176 40

This paper briefly reviews the health hazards associated with smoking, including passive smoking, with specific reference to local (Hong Kong) evidence. A Medline search of Hong Kong papers from January 1966 to January 1998 was made, and these and other relevant papers were reviewed. In Hong Kong, at least 10 people die daily from smoking- related diseases. Local studies show that smoking is associated with lung cancer, oesophageal cancer, liver cancer, ischaemic heart disease, peripheral vascular disease, ischaemic stroke, peptic ulcer, osteoporosis, impaired lung function, respiratory symptoms, and other adverse health effects. Smoking in pregnant women can result in smaller babies being born. Pooled results from four case-control studies show a 60% excess risk of lung cancer due to exposure to environmental tobacco smoke. Several studies confirm the link between exposure to environmental tobacco smoke and respiratory illness, hospitalisation, and asthma in children. The risks of smoking (one of every two smokers will be killed by tobacco) are not well known and are underestimated by both doctors and the public. Stronger health messages and more local evidence are needed to support tobacco control in Hong Kong.
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PMID:The public health harm of tobacco and its prevention in Hong Kong. 1183 Jul 5


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