• Title/Summary/Keyword: Demography

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Population diversity, admixture, and demographic trend of the Sumba Ongole cattle based on genomic data

  • Pita Sudrajad;Hartati Hartati;Bayu Dewantoro Putro Soewandi;Saiful Anwar;Angga Ardhati Rani Hapsari;Tri Satya Mastuti Widi;Sigit Bintara;Dyah Maharani
    • Animal Bioscience
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    • v.37 no.4
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    • pp.591-599
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    • 2024
  • Objective: Sumba Ongole (SO) cattle are valuable breed due to their important role in the development of Indonesian cattle. Despite rapid advances in molecular technology, no genomic studies on SO cattle have been conducted to date. The aim of this study is to provide genomic profile related to the population diversity, admixture, and demographic trends of SO cattle. Methods: Genomic information was gathered from 79 SO cattle using the Illumina Bovine SNP50 v3 Beadchip, and for comparative purposes, additional genotypes from 209 cattle populations worldwide were included. The expected and observed heterozygosity, inbreeding coefficient, pairwise fixation indices between-population, and Nei's genetic distance were examined. Multidimensional scaling, admixture, and treemix analyses were used to investigate the population structure. Based on linkage disequilibrium and effective population size calculations, the demographic trend was observed. Results: The findings indicated that the genetic diversity of SO cattle was similar to that of other indicine breeds. SO cattle were genetically related to indicines but not to taurines or Bali cattle. The study further confirmed the close relationship between SO, Ongole, and Nellore cattle. Additionally, a small portion of the Ongole mixture were identified dominant in the SO population at the moment. The study also discovered that SO and Bali cattle (Bos javanicus) could have been ancestors in the development of Ongole Grade cattle, which corresponds to the documented history of Ongolization. Our finding indicate that SO cattle have maintained stability and possess unique traits separate from their ancestors. Conclusion: In conclusion, the genetic diversity of the SO cattle has been conserved as a result of the growing significance of the present demographic trend. Consistent endeavors are necessary to uphold the fitness of the breed.

Respirable Silica Dust Exposure of Migrant Workers Informing Regulatory Intervention in Engineered Stone Fabrication

  • Mahinda Seneviratne;Kiran Shankar;Phillip Cantrell;Aklesh Nand
    • Safety and Health at Work
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    • v.15 no.1
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    • pp.96-101
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    • 2024
  • Background: Silicosis among workers who fabricate engineered stone products in micro or small-sized enterprises (MSEs) was reported from several countries. Workplace exposure data of these workers at high risk of exposure to respirable crystalline silica (RCS) dust are limited. Methods: We surveyed workers performing cutting, shaping and polishing tasks at 6 engineered stone fabricating MSEs in Sydney, Australia prior to regulatory intervention. Personal exposure to airborne RCS dust in 34 workers was measured, work practices were observed using a checklist and worker demography recorded. Results: Personal respirable dust measurements showed exposures above the Australian workplace exposure standard (WES) of 0.1 mg/m3 TWA-8 hours for RCS in 85% of workers who performed dry tasks and amongst 71% using water-fed tools. Dust exposure controls were inadequate with ineffective ventilation and inappropriate respiratory protection. All 34 workers sampled were identified as overseas-born migrants, mostly from three linguistic groups. Conclusions: Workplace exposure data from this survey showed that workers in engineered stone fabricating MSEs were exposed to RCS dust levels which may be associated with a high risk of developing silicosis. The survey findings were useful to inform a comprehensive regulatory intervention program involving diverse hazard communication tools and enforcing improved exposure controls. We conclude that modest occupational hygiene surveys in MSEs, with attention to workers' demographic factors can influence the effectiveness of intervention programs. Occupational health practitioners should address these potential determinants of hazardous exposures in their workplace surveys to prevent illness such as silicosis in vulnerable workers.

Predictive Factors of Health promotion behaviors of Industrial Shift Workers (산업장 교대근무 근로자의 건강증진행위 예측요인)

  • Kim, Young-Mi
    • Korean Journal of Occupational Health Nursing
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    • v.11 no.1
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    • pp.13-30
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    • 2002
  • Industrial shift workers feels suffer mental stresses which are caused by unfamiliar day sleep, noisy environment, sleeping disorder by bright light, unusual contacts with family, difficulty in meeting with friends or having formal social meetings and other social limitations such as the use of transportation. Such stresses influence health of the workers negatively. Thus the health promotion policy for shift workers should be made considering the workers' ways of living and shift work specially. This study attempted to provide basic information for development of the health promotion program for industrial shift workers by examining predictive factors influencing health promotion behaviors of those workers. In designing the study, three power generation plants located in Pusan and south Kyungsang province were randomly selected and therefrom 280 workers at central control, boiler and turbine rooms and environmental chemistry parts whose processes require shift works were sampled as subjects of the study. Data were collected two times from September 17 to October 8, 1999 using questionnaires with helps of safety and health managers of the plants. The questionnaires were distributed through mails or direct visits. Means for the study included the measurement tool of health promotion behavior provided by Park(1995), the tool of self-efficacy measurement by Suh(1995), the tool of internal locus of control measurement by Oh(1987), the measurement tool of perceived health state by Park(1995) and the tool of social support measurement by Paek(1995). The collected data were analyzed using SPSS program. Controlling factors of the subjects were evaluated in terms of frequency and percentage ratio Perceived factors and health promotion behaviors of the subjects were done so in terms of mean and standard deviation, and average mark and standard deviation, respectively. Relations between controlling and perceived factors were analyzed using t-test and ANOVA and those between perceived factors and the performance of health promotion behaviors, using Pearson's Correlation Coefficient. The performance of health promotion behaviors was tested using t-test, ANOVA and post multi-comparison (Scheffe test). Predictive factors of health promotion behavior were examined through the Stepwise Multiple Regression Analysis. Results of the study are summarized as follows. 1. The performance of health promotion behaviors by the subjects was evaluated as having the value of mean, $161.27{\pm}26.73$ points(min.:60, max.:240) and average mark, $2.68{\pm}0.44$ points(min.:1, max.:4). When the performance was analyzed according to related aspects, it showed the highest level in harmonious relation with average mark, $3.15{\pm}.56$ points, followed by hygienic life($3.03{\pm}.55$), self-realization ($2.84{\pm}.55$), emotional support($2.73{\pm}.61$), regular meals($2.71{\pm}.76$), self-control($2.62{\pm}.63$), health diet($2.62{\pm}.56$), rest and sleep($2.60{\pm}.59$), exercise and activity($2.53{\pm}.57$), diet control($2.52{\pm}.56$) and special health management($2.06{\pm}.65$). 2. In relations between perceived factors of the subjects(self-efficacy, internal locus of control, perceived health state) and the performance of health promotion behaviors, the performance was found having significantly pure relations with self-efficacy (r=.524, P=.000), internal locus of control (r=.225, P=.000) and perceived health state(r=.244, P=.000). The higher each evaluated point of the three factors was, the higher the performance was in level. 3. When relations between the controlling factors(demography-based social, health-related, job-related and human relations characteristics) and the performance of health promotion behaviors were analyzed, the performance showed significant differences according to marital status (t=2.09, P= .03), religion(F=3.93, P= .00) and participation in religious activities (F=8.10, P= .00) out of demography-based characteristics, medical examination results (F=7.20, P= .00) and methods of the collection of health knowledge and information(F=3.41, P= .01) and methods of desired health education(F=3.41, P= .01) out of health-related characteristics, detrimental factors perception(F=4.49, P= .01) and job satisfaction(F=8.41, P= .00) out of job-related characteristics and social support(F=14.69, P= .00) out of human relations characteristics. 4. The factor which is a variable predicting best the performance of health promotion behaviors by the subjects was the self-efficacy accounting for 27.4% of the prediction, followed by participation in religious activities, social support, job satisfaction, received health state and internal locus of control in order all of which totally account for 41.0%. In conclusion, the predictive factor which most influence the performance of health promotion behaviors by shift workers was self-efficacy. To promote the sense, therefore, it is necessary to develop the nursing intervention program considering predictive factors as variables identified in this study. Further industrial nurses should play their roles actively to help shift workers increase their capability of self-management of health.

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Risk of Food intake Between Meals and Experience of Dental caries Among Young Koreans (한국 청소년들의 간식섭취와 치아우식증경험과의 상관성)

  • Choi, Yong-Keum;Kim, Kyeong-Mi;Park, Deok-Young
    • Journal of dental hygiene science
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    • v.11 no.4
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    • pp.361-365
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    • 2011
  • This study aims to find out the correlation between the number of snack intake frequency by the young Korean and the experience of dental caries by nationwide level, using data of Korea National Health and Nutrition Examination Survey in 2007. participants whose age among 12 to 18 years-old were analyzed for this study. Of 373 total participants in this analysis, 200 were male and 173 were female. The Multiple Logistic Regression Analysis was used to estimate the association between food intake between meals and experience of dental caries. Data were weight-adjusted. The results were evidently found that those who eat between meals more frequently are likely to be linked more closely to the dental caries, in terms of the correlation between property of demography and the experience of disease (OR:2.1, CI:1.1-4.0). Thus, It is to raise the awareness of effect on dental health, regarding a kind of food consumed, an appropriate nutritional education or dietary consultation is required regularly at school.

Health Promotion Behavior and Related Factors of College Students (전문대학생들의 건강증진행위에 영향을 미치는 요인)

  • Shim, Gyu-Beom
    • The Journal of Korean Society for School & Community Health Education
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    • v.8 no.2
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    • pp.35-48
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    • 2007
  • Background & Objective: The purpose of this study was to identify the level of health behavior and taking courses related with those subjects by college students and analyse the factors that have effect on these issues so that provide a basic material in developing policy and education program that can increase the level of health behavior for them. Methods: A questionnaire was applied 1,500 college students for two months from October 10 to 30, 2007. Results: 1) When viewing the objects of this study as general traits and social economic ratio, 'female' was 59.4%, BMI index of '20-14' was 52.7%, department of natural science was 47/7%, and 'their own house' was 51.0%. 2) When viewing the experience of taking courses related with health by the trait of demography and sociology, 'no' was most high by showing 42.2%, and those of female. under 19 in BMI index, and the department of natural science showed no experience. 3) When viewing satisfaction with college life they showed $3.00{\pm}0.71$, stress level in college life $2.84{\pm}0.41$, the level of health behavior $2.06{\pm}0.65$. 4) When viewing taking courses related with health, stress in college life. and health behavior according to satisfaction with college life they showed $2.06{\pm}0.59$. 5) When viewing the level of health behavior according to demographic and sociological traits, the habit of eating was $2.48{\pm}0.52$ and health care was $2.96{\pm}0.47$. 6) When viewing the effect of factors on health behavior, there were gender, age, residence area, grade, and satisfaction with college life. Conclusion: As we can see from the results above, it is the fact that the students in college are neglecting the subjects related with health owing to short period of education and major based education by the education aim of fostering professional career manpower. Therefore it needs open many culture courses for the subject related with health in college for the students to increase their health level as well as their major, and also there needs combined improvement of college and government system.

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security Guard, Job Form Environment, Job Form Satisfaction (민간경비원의 직무환경과 직무만족도의 관계)

  • Park, Jun-Seok;Choi, Hyun-Sik;Kim, Kyong-Tae;Kim, Sang-Gyun
    • Korean Security Journal
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    • no.13
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    • pp.193-206
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    • 2007
  • The purpose of this study is to examine the Relationship between Job Form Satisfaction and Job Form Environment of Security Guard. The total 210 subjects are composed of 160 men and 50 women who work at private security company in Seoul, Kyongi. The job form satisfaction test made by Smith et al(1969) JDI(Job Descriptive Index) test was used which had been translated and modified by Park Jin Hee(1994) & Lee Dong Yeop(2003) for Korean situation. Also, one-way ANOVA were used for data analysis. These are conclusions of this study drawn from the data analysis through the methods and the process mentioned above. First, there are partial differences in the subordinate factors of job form satisfaction agreeing with the characteristic of demography. In accordance with sex, the higher is men group, in accordance with marriage, the higher is non-marriage, in accordance with age, the higher is 36-50's group, in accordance with scholastic ability, the higher is graduate school group, in accordance with income, the higher is 3 million won group. Second, there are partial differences in the effect of job form environment on satisfaction of security guard. In accordance with service career, the higher is 16-20age group, in accordance with position, the higher is general member, in accordance with main exercise, the higher is Hapkido group, in accordance with type, the higher is general charge group.

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Spatial Distribution of the Population at Risk of Cholangiocarcinoma in Chum Phaung District, Nakhon Ratchasima Province of Thailand

  • Kaewpitoon, Soraya J;Rujirakul, Ratana;Loyd, Ryan A;Matrakool, Likit;Sangkudloa, Amnat;Kaewthani, Sarochinee;Khemplila, Kritsakorn;Eaksanti, Thawatchai;Phatisena, Tanida;Kujapun, Jirawoot;Norkaew, Jun;Joosiri, Apinya;Kaewpitoon, Natthawut
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.2
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    • pp.719-722
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    • 2016
  • Background: Cholangiocarcinoma (CCA) is a serious health problem in Thailand, particularly in northeastern and northern regions, but epidemiological studies are scarce and the spatial distribution of CCA remains to be determined. A database for the population at risk is required for monitoring, surveillance and organization of home health care. This study aim was to geo-visually display the distribution of CCA in northeast Thailand, using a geographic information system and Google Earth. Materials and Methods: A cross-sectional survey was carried out in 9 sub-districts and 133 villages in Chum Phuang district, Nakhon Ratchasima province during June and October 2015. Data on demography, and the population at risk for CCA were combined with the points of villages, sub-district boundaries, district boundaries, and points of hospitals in districts, then fed into a geographical information system. After the conversion, all of the data were imported into Google Earth for geo-visualization. Results: A total of 11,960 from 83,096 population were included in this study. Females and male were 52.5%, and 47.8%, the age group 41-50 years old 33.3%. Individual risk for CCA was identifed and classified by using the Korat CCA verbal screening test as low (92.8%), followed by high risk (6.74%), and no (0.49%), respectively. Gender ($X^2$-test=1143.63, p-value= 0.001), age group ($X^2$-test==211.36, p-value=0.0001), and sub-district ($X^2$-test=1471.858, p-value=0.0001) were significantly associated with CCA risk. Spatial distribution of the population at risk for CCA in Chum Phuang district was viewed with Google Earth. Geo-visual display followed Layer 1: District, Layer 2: Sub-district, Layer 3: Number of low risk in village, Layer 4: Number of high risk in village, and Layer 5: Hospital in Chum Phuang District and their related catchment areas. Conclusions: We present the first risk geo-visual display of CCA in this rural community, which is important for spatial targeting of control efforts. Risk appears to be strongly associated with gender, age group, and sub-district. Therefor, spatial distribution is suitable for the use in the further monitoring, surveillance, and home health care for CCA.

Survival Time and Molecular Subtypes of Breast Cancer after Radiotherapy in Thailand

  • Kongsiang, Apichat;Tangvoraphonkchai, Vorachai;Jirapornkul, Chananya;Promthet, Supannee;Kamsa-ard, Siriporn;Suwanrungruang, Krittika
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.23
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    • pp.10505-10508
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    • 2015
  • Background: Breast cancer is an important cause of death among women. One way of classifying different forms of breast cancer is by molecular features, usually in terms of the four subtypes: luminal A, luminal B, HER2-enriched, and triple negative. Objectives: This study aimed to investigate the association between molecular subtypes and survival among breast cancer patients treated with radiotherapy. Materials and Methods: A retrospective cohort study was conducted. The subjects were 272 breast cancer patients who had received treatment in the radiotherapy unit at Srinagarind Hospital, Thailand, between 1 January, 1999, and 31 May, 2009. The end of the study was 1 June, 2014. Overall survival was defined as the time elapsing between initial registration at the radiotherapy unit and death or the end of the study. Survival curves were estimated by the Kaplan-Meier method, and a multivariate analysis was performed using Cox's proportional hazard regression model. Results: The patient mean age was $47.5{\pm}10.4$ at the time of diagnosis. Of the 272 patients, 146 (53.7%) were classified as luminal A, 12 (4.4%) as luminal B, 30 (11.0%) as HER2-enriched, and 84 (30.9%) as triple negative. The overall survival rates at 1, 3 and 5 years were 87.1%, 68.4% and 59.2%, respectively. According to molecular subtypes, HER2-enriched patients had the lowest 5-year survival rate (30.0 %, 95%CI: 15.02-46.55). The median follow-up time was 8.37 years. In the Cox model analysis a higher risk of death was found for patients with HER2-enriched ($HR_{adj}=3.34$, 95%CI:1.96-5.67), triple negative ($HR_{adj}=2.17$, 95%CI: 1.44-3.27), and stage IIlB ($HR_{adj}=2.20$, 95%CI: 1.16-4.17) cancers. Conclusions: The worst survival rates were among patients classified as HER2-enriched, triple negative and at stage IIIB. Early detection and an advanced treatment modality are needed to help these patients.

RPSA Gene Mutants Associated with Risk of Colorectal Cancer among the Chinese Population

  • Zhang, Shan-Chun;Jin, Wen;Liu, Hui;Jin, Ming-Juan;Chen, Ze-Xin;Ding, Zhe-Yuan;Zheng, Shuang-Shuang;Wang, Li-Juan;Yu, Yun-Xian;Chen, Kun
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.12
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    • pp.7127-7131
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    • 2013
  • The primary aim of this study was to evaluate the relationship of single nucleotide polymorphisms (SNPs) in ribosomal protein SA (RPSA) gene with colorectal cancer (CRC). A case-control study including 388 controls and 387 patients with CRC was conducted in a Chinese population. Information about socio-demography and living behavior factors was collected by a structured questionnaire. Three SNPs (rs2133579, rs2269349, rs7641291) in RPSA gene were genotyped by Illumina SnapShot method. Multiple logistic regression models were used for assessing the joint effects between tea consumption and SNPs on CRC. The subjects with rs2269349 CC genotype had a decreased risk for CRC (OR=0.60; 95%CI = 0.37-0.99), compared with TT/CT genotype after adjustment for covariates. A similar association of rs2269349 with rectal cancer was observed (OR=0.49; 95%CI=0.24-1.00). Further analyses indicated that this SNP could modify the protective effect of tea drinking on CRC. Among the subjects with rs2269349 TT/CT or rs2133579 AA/GA, there was a marginal significantly lower risk of CRC (OR and 95%CI: 0.63 and 0.39-1.01 for rs2269349; 0.64 and 0.40-1.02 for rs2133579) in tea-drinking subjects in comparison to non-tea-drinking subjects. Mutants in the RPSA gene might be associated with genetic susceptibility to CRC and influence the protective effect of tea consumption in the Chinese population.

Risk Factors for Cervical Cancer in Rural Areas of Wuhan China: a Matched Case-control Study

  • Zhang, Bin;Zhou, Ai-Fen;Zhu, Chang-Cai;Zhang, Ling;Xiang, Bing;Chen, Zhong;Hu, Rong-Hua;Zhang, Ya-Qi;Qiu, Lin;Zhang, Yi-Ming;Xiong, Chao-Du;Du, Yu-Kai;Shi, Yu-Qin
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.12
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    • pp.7595-7600
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    • 2013
  • Cervical cancer is a serious public health problem in developing countries. We investigated possible risk factors for cervical cancer in rural areas of Wuhan China using a matched case-control study with 33 women diagnosed with cervical cancer and 132 healthy women selected from the same area as matched controls. A questionnaire, which included questions about general demography conditions, environmental and genetic factors, the first sexual intercourse, first marriage age, age at first pregnancy, pregnancy first child's age, female personal health history, social psychological factors, dietary habits, smoking and alcohol status and other living habits was presented to all participants. At the same time, HPV infection of every participant was examined in laboratory testing. Results showed HPV infection (P<0.000, OR=23.4) and pregnancy first child's age (P<0.000, OR=13.1) to be risk factors for cervical cancer. Menopause (P=0.003, OR=0.073) was a protective factor against cervical cancer. However, there was no indication of associations of environmental (drinking water, insecticide, disinfectant) genetic (cancer family history), or life-style factors (smoking status, alcohol status, physical training, sleep quality), including dietary habits (intake of fruit and vegetable, meat, fried food, bean products and pickled food) or social psychological factors with cervical cancer. The results suggest that the risk of cervical cancer in Chinese rural women may be associated with HPV infection, menopause and the pregnancy first child's age.