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Preventive effect of ginseng intake against various human cancers: a case-control study on 1,987 pairs.
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Taik Koo Yun, Soo Yong Choi
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Korean J Epidemiol. 1992;14(2):138-150.
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 Abstract
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Abstract
Cases consisted of incident patients diagnosed by cytological or histological procedures to have cancers from Feb. 1987 to Dec. 1990 at the Korea Cancer Center Hospital (n=1,987). Controls were selected from the patients admitted to the hospital with diseases other than cancers and matched with the cases one by one on a bases of sex, age (2yrs), and date of admission (within 3 mo.) Ginseng was classified into fresh ginseng, white ginseng, and red ginseng. As a results, the preventive effect against cancer was found in all products except fresh slice, juice and white ginseng tea. There was a gradual decrease in OR according to the duration of ginseng intake from one year after ginseng intake. Ginseng decreased ORs of many types of cancers, except urinary bladder cancer, female thyroid cancer, female breast cancer and uterine cervix cancer. The increased risk of cancers related to smoking decreased with ginseng intake, implying the preventive effect of ginseng against cancer associated environmental factors.
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Summary
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A case-control study for risk factors on primary liver cancer
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Soo Yong Choi, Kyung Hee Lee, Taik Koo Yun
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Korean J Epidemiol. 1986;8(2):211-220.
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Abstract
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Abstract
This study is to investigate risk factors in primary liver cancer due to hepatitis B virus(HBV), smoking, drinking and other risk factors by a case-control study.
Two hundred and three patients with primary liver cancer and 609 hospital controls were analyzed.
The summary of the results are as followings:
1) There were 172(84.7) male cases with a mean age of 50.0 years and the 31(15.3%) female cases had a mean age of 50.7 years.
2) The positive rates of HBsAg for PLC patients, and controls without cancer and with cancer were 70.4%, and 7.1% and 7.9% respectively.
3) Active HBV infection, indicated by positive tests for HBsAg or anti-HBc without anti-HBs was 80.2% in PLC patients and 23.4% in controls(p < 0.001). An estimated relative risk of PLC was 8.9 times of the risk in subject without evidence of active infection.
4) Patients with markers, anti-HBs or anti-HBs and anti-HBc had approximately the same low risk for PLC.(Estimated relative risk:0.8 and 0.7)
5) Three viral markers without HBsAg, anti-HBs and anti-HBc were detected 3.0% of PLC patients and in 20.9% of controls.
6) There was a dose-response relationship between PLC and alcohol.
7) There was no significant association between cigarette smoking and PLC negative for HBsAg.
8) There was no significant positive association between PLC, and history of blood transfusion and history of acupuncture.
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Summary
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A study on concern with cervical cancer and attitudes toward a screening examination among rural Koreans
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Kyung Hee Lee, Soo Young Chi, Taik Koo Yun
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Korean J Epidemiol. 1986;8(1):11-22.
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Abstract
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Abstract
A survey was carried out during the period from October to November of 1985 to obtain information on concern with cancer and its symptom, attitudes toward a screening examination and demographic and socioeconomic aspects in the decision to the screening. Interviewed were 1,355 married women who participated in the screening examination and 278 married women selected by simple random sampling in Yangju-Gun, Gyounggi-Do.
The results summarized are as followings：
1) Among the population tested, 1,351 women (99.7%) was negative, 2 positive and 2 dysplasia.
2) The participants in the screening examination tended to be younger, better educated and better economic status than the nonparticipants.
3) Fifty-two percent of the participants and 33.6 percent of the nonparticipants reported that there had been times when they wondered if they had cervical cancer.
4) The participants tended to report more symptoms of cervical cancer than the nonparticipants.
5) There was general agreements among the paricipants and the nonparticipants on “Pap tests should be taken every year” and “If caught in its early stages, cervical cancer can be cured”.
6) Among the population studied 25% had been tested. The proportion tested was 27% in the partticipants and 15% in the nonparticipants respectively.
7) Proportions of women tested less than two years, between two and four years ago and more than 4 years were 14%, 8% and 3% respectively.
8) The proportion not tested in the past five years was 72% in the participants and 84% in the nonparticipants respectively. Proportions of women tested only once, twice and three or more were 23%, 2% and 1% in the participants, and 14%, 1% and 3% in the nonparticipants.
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Summary
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