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Biomedical subjects

S Hisamichi

Publications and source records attributed to S Hisamichi.

At least 127 records · Page 7Linked to original sources
PubMed1989

Urban-rural difference in the acceptance of mass health examination in north-eastern Japan.

Over 40,000 residents (less than or equal to 40 years of age) in a city (Sendai; the city group), a town (Shiroishi; the town group) and two villages (Wakuya and Tajiri; the village group) in Miyagi prefecture in north-eastern Japan responded in a questionnaire survey on their attitude towards mass health examinations (i.e., whether they underwent in the previous year and if so where) on 4 items of blood pressure measurement, chest x-ray examination and screening tests for stomach and cervical cancer. The coverage rates were about 70% on an average both for blood pressure measurement and for chest x-ray examination, whereas the rates for cancer screening were between 30-40%. As for the opportunity of the former two examinations, the workplace mass examination played a large role in the case of the city and town groups (especially among men but not women) in addition to visit to clinics, in contrast to the case of the village group in which people depended much on regional mass examination service. The trend was essentially reproducible in stomach cancer screening although the over-all coverage rate was low, whereas women in the three groups almost exclusively utilized clinics for cervical cancer screening with one exception that the mobile unit service appeared to be equally accepted in the village group.

Adult↗
PubMed1988

Medical costs of nonsmoking women and children in a town of Miyagi.

To know the differences in utilization of medical care and medical costs among children and nonsmoking women depending on the states of smoking of other household members, the records of a health survey conducted in a town of Miyagi in 1987 were linked to the medical insurance records. The rates of medical care use and medical costs among nonsmoking women in nonsmoking households were almost the same as those in smoking households. Children in smoking households had medical care more often than those in nonsmoking households (74.1% vs. 56.4%) and the difference in the medical costs was also observed (Y33,713 vs. Y26,558). The costs were almost correlated with the number of cigarettes smoked in the home.

Adult↗
PubMed1988

Proportion attributable to medical care of the reduction in stomach cancer deaths in Miyagi, Japan.

To estimate the contribution of medical care to the reduction in stomach cancer deaths, the trends of incidence and death rates were compared from 1960 to 1970 and from 1970 to 1980 in Miyagi, Japan. The mortality data were derived from the reports by Miyagi Prefectural Government. The incidence data from the Miyagi Prefectural Cancer Registry were used after being adjusted by the proportion of DCO (death certificate only), which is one of the indices of the reliability of the cancer registry. The time lag of 1.2 years was considered when these trends were compared. The proportion attributable to medical care of the reduction from 1960 to 1970 was estimated to be 13.6% for males and 8.2% for females in those 40 years of age or older. The proportion from 1970 to 1980 was estimated to be 17.9% for males and 11.0% for females. Medical care reduced stomach cancer deaths, to be 17.9% for males and 11.0% for females. Medical care reduced stomach cancer deaths, which exceeded the decrease in the total incidence, although it was not possible to estimate the proportions attributed to early detection and to improvement of the treatment methods.

Adult↗
PubMed1988

Effectiveness of gastric mass screening in Japan.

The age-adjusted death rate from stomach cancer has been on a downward trend during the past 25 years in Japan. During the same period, a gastric mass screening program has been continually and actively conducted throughout the country as a secondary prevention for cancer, aimed at reducing the mortality from stomach cancer through early detection. The number of examinees now amounts to over 5,000,000 a year. According to many studies to evaluate the effectiveness of the mass screening program, it is suggested that the gastric mass screening in Japan contributed toward reducing the mortality from stomach cancer.

Adult↗
PubMed1986

Risk of lung cancer by histologic type among smokers in Miyagi Prefecture.

Smoking habits of the 827 lung cancer patients aged 40 years or over who were treated in the Sendai Kosei Hospital from 1977-82 were compared with those in the general population of a non-metropolitan district in northern Japan, which we recently surveyed by mail questionnaire. The relative risks of lung cancer by histologic type adjusted by age and area of residence were as follows: 1.9 for adenocarcinoma, 4.3 for squamous cell carcinoma, 3.9 for small cell carcinoma and 3.4 for large cell carcinoma in men, and 2.9, 6.4, 4.5 and 4.0 for these histologic types, respectively, in women. These elevated risks were all statistically significant (p less than 0.05). These findings suggest that smoking habits should be carefully considered when studying the etiology of any cell type of lung cancer, even adenocarcinoma, which often has been thought to be unrelated to smoking habits.

Adenocarcinoma↗
PubMed1984

Mass screening for gastric cancer by X-ray examination.

The characteristics of early gastric cancer detected by gastric mass survey were examined. The progress of the screening test using the indirect X-ray examination and the tendency toward reduction in mortality from stomach cancer were evaluated. In 1981 the number of examinees in the gastric mass surveys amounted to over four millions in all Japan. From the data of the gastric mass survey in Miyagi Prefecture the rate of detection of gastric cancer was approximately 0.18% and the ratio of early cancer to surgically treated gastric cancer was 59.4% for 1980-1982. Furthermore, the number of m cancer, small cancer and minute cancer cases detected by the survey has increased year by year. These results are due to various advanced screening tests or close examination techniques. From our long-term follow-up study it is clearly indicated that the rate of deaths from stomach cancer in the screened individuals was half of the rate in the unscreened individuals.

Adult↗
PubMed1984

[Current issues and future prospects of gastric mass survey].

In general, it is necessary to consider morbidity rate and mortality in the population at risk when mass survey for cancer is performed. From our long-term follow-up study, it is clearly suggested that gastric mass survey contributed toward reducing the mortality from stomach cancer. However, the effectiveness of gastric mass survey depends on the screening system. The screening system with a low grade in its accuracy and reliability may also cause spoil the effectiveness of mass survey.

Adult↗
PubMed1982

Mass survey of gastric cancer and leukemia in Miyagi Prefecture, Japan.

A little more than 20,000 examinees of x-ray mass survey of gastric cancer and the controls were followed up from 1960 to 1977. Cumulative doses of x-rays were calculated for each examinee, and a collective dose in person-year-rads was constructed. Incidence of leukemia was ascertained from Miyagi Prefectural Cancer Registry. Seven cases of leukemia were found out of 242,689 person-year-rads in the irradiated population, and 9 cases out of 273,344 person-years in the controls. Incidence rate in the two groups was identical. Therefore, the risk of this mass survey was disproved.

Adult↗