• Title/Summary/Keyword: contraceptives

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Primate Model for the Evaluation of Vaginal Contraceptives

  • Zoneveld, L.J.D.;Bhattacharyya, A.K.;Kim, D-S;Schumacher, G.F.B.;Beluhan, Z.
    • Clinical and Experimental Reproductive Medicine
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    • v.6 no.1_2
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    • pp.29-36
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    • 1979
  • A good animal model that simulates the human subject has not been available for the evaluation of the in vivo effectiveness of vaginal contraceptives. After careful consideration, The stumptailed macaque (Macaca arctoides) was studied for its applicability since it has a reproductive tract similar to that of the woman, is easy to handle, does not require tranquilization or anesthesia when the contraceptive is deposited, and breeds and conceives readily under caged conditions. The reported observations show the usefulness of this animal. Both postcoital sperm motility studies and breeding experiments were performed with the use of Delfen vaginal cream and K-Y jelly. K-Y jelly had no effect on the motility of vaginal spermatozoa or on the conception rate of the primates. Although Delfen vaginal cream consistently immobilized all spermatozoa in the postcoital test, half of the animals became pregnant within an average of 3.7 breeding cycles. These results illustrate the discrepancy between spermicidal tests and fertility measurements, and it is recommended that primate-breeding experiments be performed before a spermicide is evaluated in women as a contraceptive. (AM J. OBSTET. GYNECOL, 129:368, 1977.)

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A Study on e-Logistics Integration Scheme Using A Strategy of Technical Acquisition (기술획득 전략에 따른 e-로지스틱스 통합화 방안 사례연구)

  • 서장훈;박명규
    • Proceedings of the Safety Management and Science Conference
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    • 2003.11a
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    • pp.105-111
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    • 2003
  • This paper examines to focus on General Strategy of e-logistics activity for SCM(Supply Chain Management) Build-up, especially the field service logistics Integration. And this research analyzes the case study (Business of Strategy Group Unit) Survey) involving effective logistics management that leads customer satisfaction, seeking to find out the key elements of competitive policy. Because problems arise from the differences between their goals and structures, which cause each sied to feel vulneralbe to opportunism or shirking of responsibilities by the other. The goal of a logistics system is to ensure that every family planning client always receives the contraceptives partner wants, and that they are in good condition and have not expired. In order to select, procure, and distribute the right Quantities of the right contraceptives, managers of the logistics system must keep informed of the rates of use of each contraceptive and of the Quantity of available supplies. As a result, We propose that a firm's e-logistics strategy is an important locus innovation and a crucial source of value creation for the firm its suppliers, partners, and customers.

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A Study on e-Logistics Integration Scheme Using A Strategy of Technical Acquisition (기술획득 전략에 따른 e-로지스틱스 통합화 방안 사례연구)

  • 김종기;서장훈;박명규
    • Journal of the Korea Safety Management & Science
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    • v.5 no.4
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    • pp.117-130
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    • 2003
  • This paper examines to focus on General Strategy of e-logistics activity for SCM(Supply Chain Management) Build-up, especially the field service logistics Integration. And this research analyzes the case study(Business of Strategy Group Unit) Survey) involving effective logistics management that leads customer satisfaction, seeking to find out the key elements of competitive policy. Because problems arise from the differences between their goals and structures, which cause each sied to feel vulneralbe to opportunism or shirking of responsibilities by the other. The goal of a logistics system is to ensure that every family planning client always receives the contraceptives partner wants, and that they are in good condition and have not expired. In order to select, procure, and distribute the right quantities of the right contraceptives, managers of the logistics system must keep informed of the rates of use of each contraceptive and of the quantity of available supplies. As a result, We propose that a firm's e-logistics strategy is an important locus innovation and a crucial source of value creation for the firm its suppliers, partners, and customers.

A Study of Convergence Factors involved in Malignant Tumors in the Breast (유방 악성종양에 관여하는 인자 융합 연구)

  • Kim, Jean-Soo
    • Journal of the Korea Convergence Society
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    • v.11 no.10
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    • pp.133-138
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    • 2020
  • The purpose of this study was to identify malignant tumor-related factors in breast diseases and to find out how recently reported oral contraceptives affect women in Korea. The research method is data from the 7th National Health and Nutrition Survey conducted by the Korea Centers for Disease Control and Prevention, and was provided according to the procedures for use guided through the website of the Korea Centers for Disease Control and Prevention. The analyzed data covered a total of 9,981 people, 3,341 in 2016, 3,263 in 2017 and 3,377 in 2018. The results from the study showed the significance of age, smoking, drinking, hyperlipidemia and unmarried related variables, especially the significance of oral contraceptives. Based on this study, it can contribute to active prevention of related factors and cancer-causing suppression policies, especially since the use of oral contraceptives is on the rise, it is believed that continuous research of the subjects to be taken, such as the period and dosage, should be carried out.

Association of Oral Contraceptives Use and Lung Cancer Risk among Women: an Updated Meta-analysis Based on Cohort and Case-control Studies

  • Wu, Wei;Yin, Zhi-Hua;Guan, Peng;Ren, Yang-Wu;Zhou, Bao-Sen
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.3
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    • pp.1205-1210
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    • 2014
  • Background: Previous studies on the association of oral contraceptives (OC) use and lung cancer generated inconsistent findings. The aim of this study was to confirm any definite correlation between OC use and lung cancer risk. Methods: Publications were reviewed and obtained through PubMed and EMBASE databases literature search up to November, 2013. Reference lists from retrieved articles were also reviewed. The language of publication was restricted to English. A meta-analysis was performed to evaluate the association by calculating pooled odds ratios (ORs) and 95% confidence intervals (CIs). Results: A total of 14 studies consisting of 9 case-control studies and 5 cohort studies were finally included in this meta-analysis. There was no significant association observed between OC use and lung cancer risk in the overall analysis (OR=0.91; 95% CI=0.81-1.03). There was a significant protective effect in Europe (OR=0.74; 95% CI=0.60-0.91) and a borderline significant protective effect with an adenocarcinoma histology (OR=0.90; 95% CI=0.80-1.01) in subgroup analyses. No association was observed for methodological quality of study, study design, smoking status and case number of study. Conclusion: This meta-analysis suggests that OC use is not likely to be associated with the risk of lung cancer at all. While a significant protective effect of OC use on lung cancer was observed in Europe, interpretation should be cautious because of the potential biases of low-quality studies. At the same time, more attention should be paid to the possible association of OC use with adenocarcinoma of lung. Our findings require further research, with well-conducted and large-scale epidemiological studies to confirm effects of OC use on lung cancer.

Oral Contraceptives, Abortion and Breast Cancer Risk: a Case Control Study in Saudi Arabia

  • Karim, Syed Mustafa;Baeshen, Wijdan;Neamatullah, Syed Nehal;Bin, Bakr
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.9
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    • pp.3957-3960
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    • 2015
  • Background: Several studies have examined the relationship between oral contraceptive pill (OCP) use, abortions and breast cancer, with mixed results. Hormonal changes associated with OCP use and abortion may increase risk of breast cancer over time, but there is a lack of studies studying this association in Saudi Arabian women. Materials and Methods: We thererfore conducted a case control study in 192 women (92 as cases and 100 as controls), aged 30 to 65, and collected information on variables including examples related to study objectives and those which may confound findings. The Chi square test was used to detect associations between various factors and risk of breast cancer. Results: We found no evidence of interaction between history of abortion or frequency of abortion and breast cancer risk (Chi square=0.422, p =0.420 and 1, p =0.169) respectively. Oral contraceptives did not confer risk for breast cancer overall (OR=0.276, 95%CI 0.092-0.829, p=0.524), while long term use of OCP was associated with increased risk of breast cancer (OR=0.297, 95%CI 0.158-0.557, p=0.001), with higher association for those who used 10 years or more of OCPs (OR=0.282, 95%CI 0.095-0.835, p=0.02). Age at first use of OCPs had no effect on breast cancer risk (p=0.452) or age at diagnosis (p=0.074). Conclusions: Prolonged use of OC (more than 10 years) may be associated with increased risk of breast cancer in Saudi women. Larger population based studies are needed to confirm this finding in this population.

No Increase in Breast Cancer Risk in Japanese Women Taking Oral Contraceptives: a Case-Control Study Investigating Reproductive, Menstrual and Familial Risk Factors for Breast Cancer

  • Ichida, Miho;Kataoka, Akemi;Tsushima, Ruriko;Taguchi, Tetsuya
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.9
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    • pp.3685-3690
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    • 2015
  • Background: Low-dose oral contraceptives (OC) were approved by the Japanese Ministry of Health, Labor and Welfare in 1999, yet despite their contraceptive and non-contraceptive health benefits, only 5% of the target population use them. Fear of increased cancer risk, particularly breast cancer, is one reason for this. Due to low OC uptake and low screening participation, a paucity of data is available on the risk of OC use and breast cancer in Japanese women. The present study investigated OC use and breast cancer risk, as well as menstrual, reproductive and family factors. Materials and Methods: This was a clinic-based case-control study of women aged 20-69yrs who had undergone breast screening between January 2007 and December 2013 in central Tokyo. In all, 28.8% of the participants had experience with OC use. Cases were 155 women with a pathologically confirmed diagnosis of breast cancer. Controls were the remaining 12,333 women. Results: Increased age was a significant risk factor for breast cancer (p<0.001). A lower risk was found in premenopausal women presently taking OC compared to never users (OR 0.45; 95% CI 0.22-0.90) after adjusting for age, parity and breast feeding, and a family history of breast cancer. Conclusions: Increased age rather than OC use had a greater effect on breast cancer risk. This risk may be decreased in premenopausal women with OC use, but further long-term prospective studies are necessary.

A Study on the Family Planning Practice of Some Urbanites (일부 도시지역 주민의 가족계획 실천에 관한 연구)

  • Kim, Young-Ha;Cha, Hyung-Hun;Yum, Yong-Tae
    • Journal of agricultural medicine and community health
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    • v.9 no.1
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    • pp.27-38
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    • 1984
  • The Family Planning Project as a birthcontrol policy has been enthusiastically carried out by the government since 1962. But gradually it get less enthusiastic. Therefore, it is required to establish a more comprehensive and systematic plan and to carry out it thoroughly. And it is needless to say that people's knowledge about family planning, their attitudes and their practice should be concretly comprehended. Taking these things into consideration, this study surveys the general situation on family planning among 237 married women of less than 34 years in Guro 6-dong, one of target areas for Korea University Health Project from Sep. 17, 1984 to Oct. 13, 1984. The results are as follows; 1) Most of the subjects (62.8%) want 2 children and 13.6% want one child. But son-preference consciousness is remarkably revealed among them, which is thought to cause social inequality between man and woman. Therefore, it needs to change the traditional son-preference convention, for equality of all men regardless of sex. 2) The rate of induced abortion experience by person is 61.6% and the average frequency is 1.4. Almost all the induced abortion are carried out at clinics and hospitals during 2~3 months after conception. To prevent these unnecessary conception and induced abortion in view of maternal health, ethics and economics, proper contraceptive measures should be emphasized. 3) Temporary contraceptives should be sold more widely in the basis of free trade in order to practice the intensive and comprehensive family planning because the degree which Health Center has been utilized for buying temporary contraceptives is low. 4) There are serious problems such as the side effects and the lack of follow up care in permanent contraceptives. Those lower the practice rate of permanent contraception. Therefore it is necessary to improve the quality of permanent contraception practice and strengthen the follow-up care.

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Risk of Cancer with Combined Oral Contraceptive Use among Iranian Women

  • Vaisy, Afasaneh;Lotfinejad, Shirin;Zhian, Faegh
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.14
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    • pp.5517-5522
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    • 2014
  • Oral contraceptive use is the most common type of contraception. More than 300 million women worldwide take oral contraceptives every day. However, there is a concern about the relationship with the incidence of cancer. This analytical retrospective study aimed to investigate the relationship between the incidence of cervical and breast cancers and oral contraceptive use in 128 Iranian patients with cervical cancer, 235 with breast cancer and equal numbers of controls. Data were collected through interviews with an organized set of questions. Details were also extracted from patient files. Data were analyzed using Student's t-test, chi-square and Fisher's exact tests, and Pearson's correlation analysis. The result revealed correlations between both cervical and breast cancers and history of contraceptive pills use. While cervical cancer significantly correlated with duration of use of pills, breast cancer had significant correlations with the type of oral contraceptive and age at first use. No significant relationships were found between the two types of cancer and age at discontinuation of oral contraceptives, patterns of use, and intervals from the last use. The use of oral contraceptives may triple the incidence of cervical cancer and doubles the incidence of breast cancer. Therefore, performing Pap smears every six months and breast cancer screening are warranted for long-term oral contraceptive users.