• 제목/요약/키워드: Epidemiology survey

검색결과 241건 처리시간 0.025초

Prevalence of OV Infection in Yasothon Province, Northeast Thailand

  • Saengsawang, Phubet;Promthet, Supannee;Bradshaw, Peter
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권7호
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    • pp.3399-3402
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    • 2012
  • A liver fluke, Opisthorchis viverrrini (OV), is the major cause of the high incidence of cholangiocarcinoma in Thailand. The prevalence of OV infection remains high in various parts of the country, especially in Northeast Thailand and particularly in wetland rural areas where a large proportion of the community work in agriculture and continue the traditional practice of eating raw or uncooked cyprinoid fish products. The national control program seems to have had little impact in many of these areas, and it has been difficult to make precise assessments of the overall effectiveness of the program. This paper is the first report of prospective research project designed to monitor the impact of the national control program in rural communities located in a northeastern province and at high risk of OV infection. The participants in this initial survey were 1,569 villagers, aged 20-65 years, living in two subdistricts of Yasothon Province. Stool examinations showed that 38.68% were infected with OV. Males were slightly more likely to be infected than females, but the difference was not statistically significant. Infection was found to be positively associated with age in both males and females. The preliminary data indicate that the population selected for study is suitable for the purpose of the monitoring project.

Potential Work-related Exposure to SARS-CoV-2 by Standard Occupational Grouping Based on Pre-lockdown Working Conditions in France

  • Narges Ghoroubi;Emilie Counil;Myriam Khlat
    • Safety and Health at Work
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    • 제14권4호
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    • pp.488-491
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    • 2023
  • This study aims to ascertain occupations potentially at greatest risk of exposure to SARS-CoV-2 based on pre-lockdown working conditions in France. We combined two French population-based surveys documenting workplace exposures to infectious agents, face-to-face contact with the public, and working with colleagues just before the pandemic. Then, for each 87-level standard French occupational grouping, we estimated the number and percentage of the French working population reporting these occupational exposure factors, by gender, using survey weights. As much as 40% (11 million) of all workers reported at least two exposure factors. Most of the workers concerned were in the healthcare sector. However, army/police officers, firefighters, hairdressers, teachers, cultural/sports professionals, and some manual workers were also exposed. Women were overrepresented in certain occupations with potentially higher risks of exposure such as home caregivers, childminders, and hairdressers. Our gender-stratified matrix can be used to assign prelockdown work-related exposures to cohorts implemented during the pandemic.

Breast Cancer Knowledge and Screening Behavior among Female School Teachers in Gaza City

  • Abu-Shammala, Bissan Ismail;Abed, Yehia
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권17호
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    • pp.7707-7711
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    • 2015
  • A cross-sectional survey of 370 female teachers working at Governmental schools in Gaza city was conducted. Twenty four schools were selected randomly of all female schools of the city that included primary, preparatory and secondary. In each school all-female teachers aged 35-45 year were invited to fill out a self-administered questionnaire to investigate knowledge and behavior toward breast cancer screening. The survey revealed that more than 75% of women had never undergone clinical breast examination and 60% had never undergone mammography, whereas 62% performed breast self-examination (BSE). Women who performed BSE had significantly higher knowledge about breast cancer screening (P=0.001). Women attending CBE and mammography screening also had significantly higher knowledge (P=0.001). There were significant associations between the practices and presence of positive breast cancer family history (P=0.002) and the level of education of husbands (P=0.024). The oldest women demonstrated higher performance rates of screening methods than the youngest (P=0.001). Lack of breast screening knowledge was identified among more than one third of the women, and 24.6% of women did not know any screening method. About a half of women harboured misconceptions about breast cancer screening, including the belief that breast cancer not treatable. Women residing in Gaza city (P=0.00) and with husbands less educated were more likely to have a high level of misconceptions (P=0.01).

Attributable Causes of Liver Cancer Mortality and Incidence in China

  • Fan, Jin-Hu;Wang, Jian-Bing;Jiang, Yong;Xiang, Wang;Liang, Hao;Wei, Wen-Qiang;Qiao, You-Lin;Boffetta, Paolo
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권12호
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    • pp.7251-7256
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    • 2013
  • Objectives: To estimate the proportion of liver cancer cases and deaths due to infection with hepatitis B virus (HBV), hepatitis C virus (HCV), aflatoxin exposure, alcohol drinking and smoking in China in 2005. Study design: Systemic assessment of the burden of five modifiable risk factors on the occurrence of liver cancer in China using the population attributable fraction. Methods: We estimated the population attributable fraction of liver cancer caused by five modifiable risk factors using the prevalence data around 1990 and data on relative risks from meta-analyses, and large-scale observational studies. Liver cancer mortality data were from the 3rd National Death Causes Survey, and data on liver cancer incidence were estimated from the mortality data from cancer registries in China and a mortality/incidence ratio calculated. Results: We estimated that HBV infection was responsible for 65.9% of liver cancer deaths in men and 58.4% in women, while HCV was responsible for 27.3% and 28.6% respectively. The fraction of liver cancer deaths attributable to aflatoxin was estimated to be 25.0% for both men and women. Alcohol drinking was responsible for 23.4% of liver cancer deaths in men and 2.2% in women. Smoking was responsible for 18.7% and 1.0%. Overall, 86% of liver cancer mortality and incidence (88% in men and 78% in women) was attributable to these five modifiable risk factors. Conclusions: HBV, HCV, aflatoxin, alcohol drinking and tobacco smoking were responsible for 86% of liver cancer mortality and incidence in China in 2005. Our findings provide useful data for developing guidelines for liver cancer prevention and control in China and other developing countries.

국민건강영양조사 자료의 복합표본설계효과와 통계적 추론 (Complex sample design effects and inference for Korea National Health and Nutrition Examination Survey data)

  • 정진은
    • Journal of Nutrition and Health
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    • 제45권6호
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    • pp.600-612
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    • 2012
  • Nutritional researchers world-wide are using large-scale sample survey methods to study nutritional health epidemiology and services utilization in general, non-clinical populations. This article provides a review of important statistical methods and software that apply to descriptive and multivariate analysis of data collected in sample surveys, such as national health and nutrition examination survey. A comparative data analysis of the Korea National Health and Nutrition Examination Survey (KNHANES) was used to illustrate analytical procedures and design effects for survey estimates of population statistics, model parameters, and test statistics. This article focused on the following points, method of approach to analyze of the sample survey data, right software tools available to perform these analyses, and correct survey analysis methods important to interpretation of survey data. It addresses the question of approaches to analysis of complex sample survey data. The latest developments in software tools for analysis of complex sample survey data are covered, and empirical examples are presented that illustrate the impact of survey sample design effects on the parameter estimates, test statistics, and significance probabilities (p values) for univariate and multivariate analyses.

한국 가와사끼병의 역학 (Epidemiology of Kawasaki disease in Korea)

  • 박용원
    • Clinical and Experimental Pediatrics
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    • 제51권5호
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    • pp.452-456
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    • 2008
  • Kawasaki disease (KD) is an acute, self-limited vasculitis of unknown etiology that occurs predominantly in infants and young children. Initially described in 1967 by Dr. Tomisaku Kawasaki, it is now the most common cause of acquired heart disease among children in developed nations. Although KD has been reported across all racial and ethnic groups, the incidence of KD is more common among Asians, which suggests differences of race-specific susceptibility. The prevalence of the disease varies considerably among different Asian countries, and there is a higher rate of KD reported in Asian countries such as Japan and Korea than in other countries. In Korea, a nationwide epidemiological study has been conducted every three years since the 1990s by the Korean Pediatric Heart Association to determine the epidemiologic patterns and incidence rate of KD in Korea. It was thus found in a recent survey (2003-2005) that the average annual incidence of 105.0/100,000 Korean children under the age of five years was the second-highest reported rate in the world, after Japan.

유행성 연쇄상구균 감염에 의해 폐사된 기니픽의 병리학적 연구 (Pathological studies on Expired Guinea Pigs due to Epizootic Streptococal Infection)

  • 손우찬;이상구
    • 한국수의병리학회지
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    • 제1권1호
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    • pp.61-65
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    • 1997
  • Epizootic streptococal infction is one of the common disease in guinea pig. We have confirmed 54 case of epizootic streptococal infection in guinea pig by histopathology and epidemiology. Grossly infection is characterized by the presense one to several enlarged lymph nodes particularly of the mandible cervical lymph nodes and accompanied by pleuropneumonia. Histologically there were lymphadenitis with abscesses surrounded by loose connective tissue fibrinopurulent pneumonia pleuritis myocarditis pericarditis and peritonitis. Epidemiological survey revealed that mortality was high in young adult female(15.1%) and changeable weather season such as spring and fall. From findings it was suggested that epizootic streptococal infection of guinea pig begin to infect in breeding colony around weaning period and died from that infection at animal facility during the quarantine period.

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Epidemiology of Kawasaki disease in infants 3 months of age and younger

  • Lee, Eun Jung;Park, Yong Won;Hong, Young Mi;Lee, Joon Sung;Han, Ji Whan
    • Clinical and Experimental Pediatrics
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    • 제55권6호
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    • pp.202-205
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    • 2012
  • Purpose: This study investigated the epidemiology of Kawasaki disease (KD) in infants ${\leq}3$-month-old. Methods: To study the epidemiology of KD in Korea, data for 27,851 KD patients were collected on a 3-year basis between 2000 and 2008 in a retrospective survey. From this, data for 609 KD patients ${\leq}3$-month-old were analyzed and compared with the data for KD patients >3-month-old. Results: The 609 KD patients ${\leq}3$-month-old (385 males and 224 females) constituted 2.2% of the KD patients. They included 25 infants <1-month-old, 198 infants ${\leq}1$- to 2-month-old, and 386 infants >2- and 3-months-old. The ratio of males to females was 1.72:1. The incidence of coronary artery (CA) dilatation (19.9% vs. 18.7%) and CA aneurysms (3.4% vs. 2.6%) detected by echocardiography did not differ significantly between patients with KD younger and older than 3-month-old. Conclusion: Compared with the data for the KD patients >3-month-old, the data for the 609 patients ${\leq}3$-month-old did not show a significantly higher incidence of CA dilatation or CA aneurysms.

General Workers Living with Younger Children in Fukushima Performed more Preventive Behavior against Radiation during and after the Nuclear Disaster

  • Kanda, Hideyuki;Sugaya, Nagisa;Takahashi, Kenzo;Mizushima, Shunsaku;Koyama, Kikuo
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권11호
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    • pp.6893-6897
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    • 2013
  • Background: During and after the Fukushima nuclear disaster (FND), many parents were concerned about the effects of radiation on the health of their children. Purpose: To clarify the factors that influenced general workers living with children and the effect of child age groups in implementing preventive behaviorsagainst radiation following the FND. Materials and Methods: A descriptive study of preventive behaviors among general workers was carried out 3-5 months after the nuclear disaster. The subjects were 1,394 regular workers, who took part in radiation seminars run by the Fukushima Occupational Health Promotion Center between July and September, 2011. In total, 1,217 responses were submitted, of which 1,110 were eligible for the present study. This anonymous questionnaire survey inquired about the presence and age of children in the household and about radiation preventive behavior implemented after the FND. The contribution of each variable was assessed by logistic regression analysis. Results: General workers in Fukushima who lived with younger children performed more preventive behavior against radiation during and after the FND. In particular, both location-related and daily routines were practiced significantly more frequently (p<0.01) by workers living with a child in the age ranges of 0-6 (8 of 10 items) and 7-12 (5 of 10 items). Conclusions: This is the first study to assess the positive association between living with children by age group and increased preventive behavior against radiation implemented by general workers after the FND.

Knowledge, Perceptions and Acceptability of HPV Vaccination among Medical Students in Chongqing, China

  • Fu, Chun-Jing;Pan, Xiong-Fei;Zhao, Zhi-Mei;Saheb-Kashaf, Michael;Chen, Feng;Wen, Ying;Yang, Chun-Xia;Zhong, Xiao-Ni
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권15호
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    • pp.6187-6193
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    • 2014
  • Objectives: To evaluate medical students' knowledge of HPV and HPV related diseases and assess their attitudes towards HPV vaccination. Methods: A total of 605 medical undergraduates from Chongqing Medical University in China were surveyed using a structured and pretested questionnaire on HPV related knowledge. Results: Some 68.9% of the medical students were females, and mean age was 21.6 (${\pm}1.00$) years. Only 10.6% correctly answered more than 11 out of 14 questions on HPV related knowledge, 71.8% being willing to receive/advise on HPV vaccination. Female students (OR: 2.69; 95% CI: 1.53-4.72) and students desiring more HPV education (OR: 4.24; 95% CI: 1.67-10.8) were more willing to accept HPV vaccination. HPV vaccination acceptability was observed to show a positive association with HPV related knowledge. Conclusions: Our survey found low levels of HPV related knowledge and HPV vaccination acceptability among participating medical students. HPV education should be systematically incorporated into medical education to increase awareness of HPV vaccination.