• 제목/요약/키워드: Relative risks

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Trends of Breast Cancer Incidence in Iran During 2004-2008: A Bayesian Space-time Model

  • Jafari-Koshki, Tohid;Schmid, Volker Johann;Mahaki, Behzad
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권4호
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    • pp.1557-1561
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    • 2014
  • Background: Breast cancer is the most frequently diagnosed cancer in women and estimating its relative risks and trends of incidence at the area-level is helpful for health policy makers. However, traditional methods of estimation which do not take spatial heterogeneity into account suffer from drawbacks and their results may be misleading, as the estimated maps of incidence vary dramatically in neighboring areas. Spatial methods have been proposed to overcome drawbacks of traditional methods by including spatial sources of variation in the model to produce smoother maps. Materials and Methods: In this study we analyzed the breast cancer data in Iran during 2004-2008. We used a method proposed to cover spatial and temporal effects simultaneously and their interactions to study trends of breast cancer incidence in Iran. Results: The results agree with previous studies but provide new information about two main issues regarding the trend of breast cancer in provinces of Iran. First, this model discovered provinces with high relative risks of breast cancer during the 5 years of the study. Second, new information was provided with respect to overall trend trends o. East-Azerbaijan, Golestan, North-Khorasan, and Khorasan-Razavi had the highest increases in rates of breast cancer incidence whilst Tehran, Isfahan, and Yazd had the highest incidence rates during 2004-2008. Conclusions: Using spatial methods can provide more accurate and detailed information about the incidence or prevalence of a disease. These models can specify provinces with different health priorities in terms of needs for therapy and drugs or demands for efficient education, screening, and preventive policy into action.

스마트 의류의 혁신속성과 지각된 위험이 제품 태도 및 수용의도에 미치는 영향 (The Effect of Attributes of Innovation and Perceived Risk on Product Attitudes and Intention to Adopt Smart Wear)

  • 고은주;성희원;윤혜림
    • 마케팅과학연구
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    • 제18권2호
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    • pp.89-111
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    • 2008
  • 디지털 기술의 발전으로 일상생활에 접목시킨 스마트 의류 개발에 관한 연구가 활발히 진행되고 있으나, 실질적으로 착용하게 될 소비자의 인식이나 태도에 관한 연구가 이루어지지 않고 있다. 본 연구에서는 스마트의류의 지각된 혁신속성과 위험지각 차원이 제품 태도와 수용의도에 미치는 영향을 알아보고자 대학생을 대상으로 설문지법을 이용하여 조사하였다. 연구의 결과, 스마트의류의 지각된 혁신속성은 상대적 이점, 가시성, 복잡성의 3가지 요인으로, 지각된 위험은 신체/성과적 위험, 사회심리적 위험, 시간손실 위험, 경제적 위험 4가지 요인으로 추출되었다. 혁신특성 중 상대적 이점, 가시성이, 위험지각 중 사회심리적 위험과 경제적 위험이 제품 태도와 구매의도 예측에 주요한 변인으로 나타났다. 한편 사회심리적, 경제적 위험은 상대적이점과 복잡성을 설명하는데, 신체성과적, 사회심리적, 시간손실 위험은 가시성을 설명하는데 유의한 변인으로 나타났다. 제품 태도는 혁신특성과 구매 의도 사이에서는 부분매개 역할을, 위험지각과 구매의도 사이에서는 완전매개역할을 하는 것으로 나타났다. 본 연구는 스마트의류 구입 시 소비자가 인지하는 혁신특성과 지각된 위험의 유형을 파악함으로써 스마트의류 마케터들이 소비자의 긍정적인 태도 형성을 위한 마케팅 전략 수립 시 활용할 수 있는 기초 정보를 제시하였다.

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종신보험에서의 영향 변수의 영향력 분석에 관한 연구 (Analysis of influential factors in whole life insurance model)

  • 현정민;차지환
    • Journal of the Korean Data and Information Science Society
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    • 제21권1호
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    • pp.71-86
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    • 2010
  • 생명보험의 보험료는 보험가입자들의 예정 수명분포와 예정 이자율에 기초하여 산출되게 된다. 산출된 보험료는 향후 해당 보험을 운영하는 과정에서 발생할 수 있는 보험회사나 보험가입자들의 손실 그리고 이들이 부담하는 리스크에 직접적인 영향을 미치게 된다. 따라서 생명 보험에서 이들 두 가지 요소, 즉 예정 수명분포와 예정 이자율은 중요한 영향 변수로 여겨진다. 본 논문에서는 종신보험에서 이들 영향 변수가 보험료, 보험 운영상의 리스크, 보험운영에 있어서의 손실 확률에 미치는 영향력을 분석하고 상대적인 영향력의 크기를 비교해 보고자 한다.

개인 특성에 따른 정보시스템 내부통제요소 중요도에 관한 연구 (The Priority of Internal Control Factors for Information Systems based on Individual Characteristics)

  • 박종은;이우형;이명호
    • 경영과학
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    • 제21권1호
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    • pp.57-76
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    • 2004
  • The development of informational technology has lead to a sharp change in not only the existing way of operations and management, but the way of human life or thinking as well. Those shifts of the paradigm in information technology have also affected Individuals to the organizational structure. A series of unexpected problems was, however, accompanied by the advance in informational technology, which had broaden its own area of application. Those problems include the losses of property or data the malfunction of systems and their wastefulness would result in, continuous increases in computer crimes, reliability and efficiency of the functional process with the development of information systems, such as the processing problems of inaccurate data, economical issues, and subjects related to safety, as interruptions of privacy, which would result from lots of one's exposure to the drains of personal information. Accordingly, Auditors' roles of information systems, for now, is more important than anything else in that they are responsible for the objective assessment of relevance and effectiveness of internal control systems under the environment of information systems. The objective of the study is, so as to obtain safety of information systems: First, to provide data to line-design internal control systems after finding internal control factors to prevent and eliminate the risks of information systems. Second, to evaluate the priorities of internal control factors with their effective management being considered as the key to settle the problems of risks of information systems. Third, to discriminate what factors affect In evaluating the relative degrees of Importance of internal control factors.

스마트폰 사용량과 근골격계질환 관련 자각증상과의 관련성에 관한 연구 (An empirical study on relationship between symptoms of musculoskeletal disorders and amount of smartphone usage)

  • 엄수현;최서연;박동현
    • 대한안전경영과학회지
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    • 제15권2호
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    • pp.113-120
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    • 2013
  • This study was conducted to investigate the characteristics of smartphone usage and posture of users during using smartphone. A survey was conducted for 983 smartphone users to understand the association between smartphone usage and including subjective symptoms associated with musculoskeletal disorders. Main results from the survey were as follows; 1) 18.8% of the subjects experienced musculoskeletal symptoms at least at one of body parts. Specifically, 8.1%, 5.6%, 4.1%, and 11.3% of the subjects experienced musculoskeletal symptoms at neck, shoulder, elbow, and hand respectively, 2) The symptoms of musculoskeletal disorders were also associated with amount of text message and time for daily usage of smartphone. Specifically, relative risks of musculoskeletal disorders at hand/wrist/fingers in terms of "amount of text message" and "time for daily usage" for experienced user were 1.425 and 1.368 respectively to inexperienced user. This study identified 'amount of text message' and 'time for daily usage' as the major risk factors of smartphone usage in terms of musculoskeletal symptoms. The results of the study provided a good basis in order to remove or reduce the risks associated with musculoskeletal symptoms due to smartphone usage.

Spatial analysis of Relative Risks for skin cancer morbidity and mortality in Iran, 2008 - 2010

  • Zayeri, Farid;Kavousi, Amir;Najafimehr, Hadis
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권13호
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    • pp.5225-5231
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    • 2015
  • Background: One of the most prevalent cancers in whole world is skin cancer and its prevalence is growing. The present research sought to estimate relative risk of morbidity and mortality due to skin cancer. Materials and Methods: In this cross-sectional study. The required data were gathered from the registered cancer reports of Cancer Control Office in the Center for Non Communicable Disease of the Iranian Ministry of Health (MOH). The data were extracted at province level in the time span of 2008-10. WINBUGS software was used to analyze the data and to identify high risk regions. ArcGIS10 was utilized to map the distribution of skin cancer and to demonstrate high risk provinces by using classic and fully Bayesian models taking into account spatial correlations of adjacent regions separately for men and women. Results: Relative risk of morbidity for women in Yazd and for men in Kurdistan and relative risk of mortality for women in Bushehr and for men in Kohgiluyeh were found to be the highest. Bayesian model due to regarding adjacent regions correlation, have precise estimation in comparing to classical model. More frequent epidemiological studies to enact skin cancer prevention programs. Conclusions: High risk regions in Iran include central and highland regions. Therefore it is suggested that health decision makers enact public education, using anti UV creams and sunglasses for those parts as a short preventing program.

Total Laparoscopic Hysterectomy Versus Total Abdominal Hysterectomy for Endometrial Cancer: A Meta-analysis

  • Wang, Hui-Ling;Ren, Yan-Fang;Yang, Jun;Qin, Rui-Ying;Zhai, Kai-Hua
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권4호
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    • pp.2515-2519
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    • 2013
  • The standard surgery for early-stage endometrial cancer is total abdominal hysterectomy (TAH), while total laparoscopic hysterectomy (TLH) is less invasive and assumed to be associated with lower morbidity. This meta-analysis was performed to investigate the effects of TLH versus TAH in women with early-stage endometrial cancer. We searched the PubMed, EMBASE, CBM and Cochrane Review databases for randomized trials assessing the effects of TLH versus TAH in women with early-stage endometrial cancer. The relative risks (RR) with 95% confidence intervals (CIs) from each study were pooled using meta-analysis. In our study, 9 randomized trials with a total of 1,263 patients were included. Meta-analyses showed that TLH was associated with lower risks of major complications (RR = 0.53, 95%CI 0.29-0.98, P = 0.042), total complications (RR = 0.59, 95%CI 0.42-0.82, P = 0.002) and postoperative complications (RR = 0.57, 95%CI 0.40-0.83, P = 0.003). However, there were no obvious differences in risks of intra-operative complications (RR = 0.98, 95%CI 0.62-1.55, P = 0.919) and mortality (RR = 0.96, 95%CI 0.66-1.40, P = 0.835). In conclusion, our results provide new evidence of a benefit for TLH over TAH in terms of major complications, total complications and postoperative complications in endometrial cancer patients.

Diabetes, Overweight and Risk of Postmenopausal Breast Cancer: A Case-Control Study in Uruguay

  • Ronco, Alvaro L.;Stefani, Eduardo De;Deneo-Pellegrini, Hugo;Quarneti, Aldo
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권1호
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    • pp.139-146
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    • 2012
  • Obese postmenopausal women increase their risk of developing breast cancer (BC), in particular if they display an android-type pattern of adiposity, which is also associated to increased risks of diabetes mellitus, hypertension and cardiovascular disease. In order to explore the associations among anthropometry (body mass index, body composition, somatotype), some specific items of medical history (diabetes, hypertension, dislypidemias, hyperuricemia) and the risk of BC in Uruguayan women, a case-control study was carried out between 2004-2009 at our Oncology Unit. 912 women of ages between 23-69 years (367 new BC cases and 545 non hospitalized, age-matched controls with a normal mammography) were interviewed. Twenty body measurements were taken in order to calculate body composition and somatotype. Patients were queried on socio-demographics, reproductive history, family history of cancer, a brief food frequency questionnaire and on personal history of diabetes, dislypidemias, hyperuricemia, hypertension and gallbladder stones. Uni- and multivariate analyses were done, generating odds ratios (ORs) as an expression of relative risks. A personal history of diabetes was positively associated to BC risk (OR=1.64, 95% CI 1.00-2.69), being higher among postmenopausal women (OR=1.92, 95% CI 1.04-3.52). The risks of BC for diabetes in postmenopausal women with overweight combined with dislypidemia (OR=9.33, 95% CI 2.10-41.5) and high fat/muscle ratio (OR=7.81, 95% CI 2.01-30.3) were significantly high. As a conclusion, a personal history of diabetes and overweight was strongly associated to BC. The studied sample had a subset of high-risk of BC featured by postmenopausal overweight and diabetic women, who also had a personal history of hypertension and/or dyslipidemia. The present results could contribute to define new high risk groups and individuals for primary as well as for secondary prevention, since this pattern linked to the metabolic syndrome is usually not considered for BC prevention.

Cancer Risk from Medical Radiation Procedures for Coronary Artery Disease: A Nationwide Population-based Cohort Study

  • Hung, Mao-Chin;Hwang, Jeng-Jong
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권5호
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    • pp.2783-2787
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    • 2013
  • To assess the risk of cancer incidence after medical radiation exposure for coronary artery disease (CAD), a retrospective cohort study was conducted based on Taiwan's National Health Insurance Research Database (NHIRD). Patients with CAD were identified according to the International Classification of Diseases code, 9th Revision, Clinical Modification (ICD-9-CM), and their records of medical radiation procedures were collected from 1997 to 2010. A total of 18,697 subjects with radiation exposure from cardiac imaging or therapeutic procedures for CAD were enrolled, and 19,109 subjects receiving cardiac diagnostic procedures without radiation were adopted as the control group. The distributions of age and gender were similar between the two populations. Cancer risks were evaluated by age-adjusted incidence rate ratio (aIRR) and association with cumulative exposure were further evaluated with relative risks by Poisson regression analysis. A total of 954 and 885 subjects with various types of cancers in both cohorts after following up for over 10 years were found, with incidences of 409.8 and 388.0 per 100,000 person-years, respectively. The risk of breast cancer (aIRR=1.85, 95% confidence interval: 1.14-3.00) was significantly elevated in the exposed female subjects, but no significant cancer risk was found in the exposed males. In addition, cancer risks of the breast and lung were increased with the exposure level. The study suggests that radiation exposure from cardiac imaging or therapeutic procedures for CAD may be associated with the increased risk of breast and lung cancers in CAD patients.

사물인터넷 쇼핑의 편리성과 소비자 알 권리 중요도: 아마존 대시 버튼 사례 연구 (Importance of Convenience and Consumer Rights to Information in Internet of Things Shopping: Amazon Dash Button Case Study)

  • 이민선;이현화
    • 패션비즈니스
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    • 제24권4호
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    • pp.85-98
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    • 2020
  • The Internet of Things (IoT) shopping environment can provide benefits and risks to consumers, including shopping convenience and invasion of consumer rights, respectively. We experimentally tested whether exposure to information regarding the benefits and risks of IoT shopping would elicit changes to consumer perceptions of the importance of shopping convenience and rights to information, as well as shopping intention among young online shopping consumers. The participants (N=218) were randomly assigned into one of two experimental conditions. The control group was exposed to a news article and a video emphasizing the shopping convenience of the Amazon Dash Button service, while the experimental group was exposed to the same news article and video provided to the control group, along with a news article about the judgment of the Munich court that the Dash Button violates German consumer law. We found an interaction effect of experimental condition and time on changes to the perceived importance of shopping convenience and shopping intention. The changes to the perceived relative importance of shopping convenience to consumer rights to information from pre- to post-manipulation differed significantly between the two experimental groups. The results of this study emphasize the importance of providing information on both the benefits and risks of IoT shopping. This was the first experimental study to examine the possibility of the invasion of consumer rights to information in the IoT shopping environment. This study urges researchers, marketers, and policy makers to focus more on consumer rights to information in the newly coming IoT shopping environment.