• Journal of Korean Society of Forest Science
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• v.90 no.4
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• pp.573-581
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• 2001

The purposes of this study are to estimate mean willingness to pay (WTP) for preventing forest fires by contingent valuation method (CVM), and to calibrate the variables affecting WTP. The forest fire prevention fund was utilized as a payment vehicle to elicit respondents' willingness to pay (WTP). A total of 500 adults who reside in Seoul Metropolitan area were selected by two-stage cluster sampling and conducted the face-to-face interview. The scenario was designed to meet the requirements for double-bounded dichotomous choice CVM. More than half of the respondents (64.6%) have a willing to pay for the fund. The mean WTP was \4,532. Therefore a total WTP for the population was \34,165,758,000. The calibration of Weibull proportional hazard model showed that education level, environmental conservation intention and negative consciousness about the effect of forest fire were independent variables strongly influencing the WTP.

• Asian Pacific Journal of Cancer Prevention
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• v.16 no.16
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• pp.6935-6939
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• 2015

Background: Currently, a comprehensive program for screening and early detection of cervical cancer does not exist in Iran. This study aimed to determine the prevalence of abnormal Papanicolaou (Pap) smears and some related factors among women living in Zanjan, Iran. Materials and Methods: This cross-sectional study was conducted in 2012 in Zanjan on 4274 married women aged 20-65 years. The study participants were selected through two-stage cluster sampling. After obtaining written consent, demographic and fertility questionnaires were completed. Samples from cervix were obtained through a standard method using the Rover Cervex- Brush. Evaluation and interpretation of the samples were reported using the Bethesda 2001 method. Data were statistically analyzed using chi-square and logistic regression models. Results: Most inflammatory changes in the samples were mild (37.4%). Abnormal atypical changes in the epithelial cells were found in 4.04%. The highest percentage of abnormal changes in the epithelial cells was atypical squamous cells of undetermined significance (ASCUS) (1.9%). Abnormal results of Pap smear was significantly and independently associated with age, papillomavirus infection, and lack of awareness about Pap smear tests. Conclusions: Given the high prevalence of inflammatory and precancerous changes in this study, compared to other studies in Iran and other Muslim countries, and the effect of demographic variables and individual factors on abnormal results, increasing the awareness of women and their families regarding the risk factors for cervical cancer, preventive measures such as screening, and timely treatment seem necessary.

• Nutrition Research and Practice
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• v.8 no.6
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• pp.679-687
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• 2014

BACKGROUND/OBJECTIVES: Recently, there has been an increased interest in the importance of family meals on children's health and nutrition. This study aims to examine if the eating habits and eating behaviors of children are different according to the frequency of family dinners. SUBJECTS/METHODS: The subjects were third-grade students from 70 elementary schools in 17 cities nationwide. A two-stage stratified cluster sampling was employed. The survey questionnaire was composed of items that examined the general characteristics, family meals, eating habits, eating behaviors, and environmental influence on children's eating. The subjects responded to a self-reported questionnaire. Excluding the incomplete responses, the data (n = 3,435) were analyzed using ${\chi}^2$-test or t-test. RESULTS: The group that had more frequent family dinners (${\geq}$ 5 days/week, 63.4%), compared to those that had less (${\leq}$ 4 days/week, 36.6%), showed better eating habits, such as eating meals regularly, performing desirable behaviors during meals, having breakfast frequently, having breakfast with family members (P < 0.001), and not eating only what he or she likes (P < 0.05). Those who had more frequent family dinners also consumed healthy foods with more frequency, including protein foods, dairy products, grains, vegetables, seaweeds (P < 0.001), and fruits (P < 0.01). However, unhealthy eating behaviors (e.g., eating fatty foods, salty foods, sweets, etc.) were not significantly different by the frequency of family dinners. CONCLUSIONS: Having dinner frequently with family members was associated with more desirable eating habits and with healthy eating behaviors in young children. Thus nutrition education might be planned to promote family dinners, by emphasizing the benefits of having family meals on children's health and nutrition and making more opportunities for family meals.

• Research in Community and Public Health Nursing
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• v.6 no.1
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• pp.84-97
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• 1995

There is a widespread concern that women's increasing involvement in dual role (job plus family role) may harm their physical health. Longevity of women is longer than that of men. By contrast, prevalence rate is higher in women than men, and No. of prevalence days, No. of days in bed and No. of days with treatment are more in women. Generally, women live longer, but women are worse in health status than men. Rate of labor participation in women is increasing gradually in Korea. This study presents an analysis of the relationships between employment. marital status and health for both Korean women and men to examine how women's increasing involvements in dual role affect their physical health. The data used in this analysis were collected by The National Statistical Office in the spring of 1992. Households, which were sampled by using a three-stage stratified cluster sampling method, were interviewed. Response rate was 99.43%. Of these, student or widowed or divorced people were excluded. 47,552 women and men aged 21-50 were available for the analysis. Health status was measured by self-assessed health status (1=excellent, 5=poor), No. of prevalent days, No. of days with treatment, and No. of days in bed in two previous weeks. And control variables are age, and education. Research findings are as follows : 1. Men have better self-rated health, fewer prevalent days, fewer days in bed, and fewer days with treatment than women. 2. The employed are more healthier than the non-employed. 3. Unmarried people are more healthier than married people. 4. Interaction effects of sex, marital status, employment are significant. This finding shows that effects of empolyment, marital status on health status is not same for women and men. 5. For male, employed people are more healthier than non-employed people. Unmarried people are more healthier than married people. This differences are significant. For female, The employed are more healthier than the non-employed. However, no differences are noticed between the married and the unmarried in health status. In conclusion, there is no evidence that women's involvements in dual role affect their physical health negatively.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.1
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• pp.107-110
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• 2014

Background: Increasing uptake of human papillomavirus (HPV) vaccine should be a priority in developing countries since they suffer 88% of the world's cervical cancer burden. In many countries studies show that age at vaccination is an important determinate of parental acceptability. This study explores parental preferences on age-to-vaccinate for adolescent school-going girls. Materials and Methods: The sample was selected using a two-stage probability proportional to size cluster sampling methodology. Questionnaires were sent home with a random sample of 800 adolescent girls attending 12 schools in Mysore to be completed by parents. Descriptive statistics including frequencies, percentages and proportions were generated for independent variables and bivariate analyses (Chi square test) were used to assess the relationship between independent and appropriate age-to-vaccinate. Results: HPV vaccination acceptability was high at 71%. While 5.3% of parents felt girls should be vaccinated by 10 years or younger; 38.3% said 11-15 years; 14.8% said 16-18 years; 5.8% suggested over 19 years; and 33% didn't know. Only 2.8% of parents would not vaccinate their daughters. Conclusions: Delaying HPV vaccination until later ages may signifivantly increase uptake of the HPV vaccine in India.

• Journal of Preventive Medicine and Public Health
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• v.41 no.4
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• pp.232-240
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• 2008

Objectives: This study was conducted to assess the nutritional status and characteristics related to malnutrition in children less than five years of age in Nghean, Vietnam. Methods: In this study, which was conducted in November 2007, 650 child-mother pairs were selected using a two-stage cluster sampling methodology. A structured questionnaire was then administered to the mothers in their home settings. Anthropometric measurement was then used to determine if children were underweight (weight-for-age), wasting (weight-for-height) and stunting (height-for-age) based on reference data from the National Center for Health Statistics (NCHS)/World Health Organization (WHO). Logistic regression analysis was then used to describe the hierarchical relationships between potential risk factors and malnutrition. Results: The mean Z-scores for weight-for-age, height-for-age and weight-for-height were -1.46 (95% CI=-1.57, -1.35), -1.44 (95% CI=-1.56, -1.32) and -0.71 (95% CI=-0.82, -0.60), respectively. Of the children included in this study, 193 (31.8%) were underweight, 269 (44.3%) were stunting and 72 (11.9%) were wasting. Region of residence, the mother's level of education and occupation, household size, number of children in the family, weight at birth and duration of exclusive breastfeeding were found to be significantly related to malnutrition. Conclusions: The findings of this study indicate that malnutrition is still an important problem among children less than five years of age in Nghean, Vietnam. In addition, maternal, socio-economic and environment factors were found to be significant factors for malnutrition among children under five.

• Asian Pacific Journal of Cancer Prevention
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• v.17 no.9
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• pp.4427-4432
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• 2016

Background: Fear and fatalism have been proposed as factors affecting breast cancer screening, but the evidence is not strong. This study aimed to determine relationships of fear and fatalism with breast cancer screening behavior among Tabriz women in Iran. Materials and Methods: In a cross- sectional study, 370 women referred to 12 health centers in Tabriz were selected with two-stage cluster sampling and data regarding breast cancer screening, fatalism and fear of breast cancer were collected respectively with a checklist for screening performance, Champions Fear and Pow Fatalism Questionnaires. Data were analyzed by logistic regression with SPSS software version 16. Results: Only 43% and 23% of participants had undergone breast self- examination and clinical breast examination. Among women older than 40 years, 38.2% had mammography history and only 2.7% of them had done it annually. Although fatalism and fear had a stimulating effects on breast cancer screening performance th relationships were not significant (P>0.05). There was a negative significant correlation between fear and fatalism (r= -0.24, p=0.000). On logistic regression analysis, age (OR=1.037, p<0.01) and income status (OR= 0.411, p<0.05) significantly explained BSE and age (OR=1.051, p<0.01) and body mass index (OR= 0.879, p<0.01) explained CBE. Also BMI (OR= 0.074, p<0.05) and income status (OR=0.155, p<0.01) was significantly effective for mammography following. Conclusions: Breast cancer screening behavior is inappropriate and affected by family livelihood status and lifestyle leads to weight gain, so that for promoting of screening behaviors, economic support to families, lifestyle modification and public education are suggested.

• Journal of the Korean Society of School Health
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• v.19 no.2
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• pp.75-88
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• 2006

Purpose : This study are the secondary data of Global Youth Tobacco Survey(GYTS) developed by the WHO and United State Center for Disease Control(CDC) and Prevention to trace tobacco use among youth in youth in countries across the world. This study was carried out to serve for a basis for antismoking campaigns and to prevent adolescents from smoking by analyzing the smoking by analyzing the smoking realities factors. Methods : This study is a cross-sectional school-based survey, which employed a two-stage cluster sample design to produce a nationally representative sample of middle school students aged 13 to 15 years olds. Seventy-five schools were selected. All schools containing grade 1, 2 and 3 that contained 40 or students were included in the sampling frame. Results : The results of this study were as follows ; 1. The proportion of smoking students in middle school was 6.4% and the rate of smoking in male students(7.4%) was higher than it of in female students(5.5%). 2. 26.5% of all respondent had a experience to try smoke and the results showed that the rate of trying smoking in male students was increased by grade more than female students. 3. According to test of significance in regression analysis, the independent variables such as sex, school grade, smoking parents, friends distinction, pocket money and others showed statistical significance. 4. There was a statistical significance between smokers and nonsmokers in proportion to the completing the preventive education for nonsmoking(p=0.0023) and the acquirement of knowledge on smoking(p<.0001). 5. Finally there was a statistical significance between the exposure to anti-smoking campaign(p=0.0053) and tobacco advertisement in the mass media and the smoking(p=0.0036). Conclusion : All things considered, the health education for tobacco control in school need to be developed from an elementary school. I suggest that prevent smoking program in school need to be revitalized and be made more accessible for everyone who wish to quit. And the government should develop the regulation on total banning promoting cigarette advertising and smoking scene in the movie for young people.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.5
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• pp.1913-1918
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• 2014

Background: The study is the first of its kind to be conducted in Saudi Arabia (KSA), aiming to analyze the effectiveness of an intervention program in improving the knowledge of oral cancer among the youth. Materials and Methods: A total of 1,051 young Saudis (57% males and 43% females with a mean age of $20.4{\pm}1.98$) were selected using multi-stage cluster sampling. Knowledge assessment was accomplished using a closed-ended questionnaire which was subjected to reliability tests. Prevalence of risk factors in relation to gender was analyzed using the chi-squared test. Effectiveness was calculated by comparing the pre- and post-intervention means, using the two-tailed paired t-test. Multiple logistic regression was employed in order to determine factors associated with awareness of risk habits, signs/symptoms and prevention of oral cancer. The significance level in this study was set at 0.05. Results: Females were seen to be more into the habit of sheesha smoking (3.3% rather than the use of other forms of risk factors. Prevalence of diverse risk factors such as cigarette smoking (20%), sheesha (15.3%), khat (27%) and shamma (9%) was seen among males. Gender and the use of modifiable risk factors among the study sample were significantly (p<0.001) associated with effectiveness of the intervention. The intervention program was highly effective (p<0.001) in improving the knowledge of oral cancer among the youth in Jazan, KSA. Multivariate analysis revealed that age and gender are the most significant factors affecting knowledge. Conclusions: The study gives a direction for further public health initiatives in this oral cancer prone region.

• Journal of Korean Society of Forest Science
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• v.88 no.2
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• pp.133-141
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• 1999

The purposes of this study were to evaluate the present management policy of recreation forest under competitive environment with similar types of recreation areas like national parks and to suggest the effective management strategies, using a multidimensional scaling technique. Data were collected from 1200 residents of Seoul, Pusan, Taegu, Kwangju, and Taejon sampled by two stage cluster sampling method. There were some different perceptions between Seoul residents and the others, but most of the respondents perceived recreation forests as uncrowded natural areas with reasonable use fees. The results suggested the need for developing effective marketing strategies to have distinguishing images from national parks that have competitive.