• 제목/요약/키워드: Two-stage cluster sampling

검색결과 51건 처리시간 0.027초

초·중·고등학교 영양교사의 영양교육 실태와 교육 요구도 (Status and Need Assessment on Nutrition & Dietary Life Education among Nutrition Teachers in Elementary, Middle and High Schools)

  • 오나경;권수진;김경원;손정민;박혜련;서정숙
    • 대한지역사회영양학회지
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    • 제21권2호
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    • pp.152-164
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    • 2016
  • Objectives: This study was conducted to investigate the status and need for nutrition and dietary life education among nutrition teachers at schools. These characteristics were analyzed if they were different between elementary schools and middle-high schools. Methods: Subjects were 151 nutrition teachers from 70 elementary schools, 41 middle schools and 40 high schools in 17 cities nationwide selected by two-stage stratified cluster sampling process. Survey questionnaires included the items on general characteristics, status and need assessment for nutrition and dietary life education. Chi-square test or t-test was used for data analysis by school groups. Results: Nutrition education was implemented at 65.7% of elementary schools and 51.9% of middle-high schools. Nutrition education was mainly performed in 'discretionary activities extracurricular activities' at elementary school and through 'newsletters, school homepage, foodservice bulletin board' at middle-high school (p<0.001). The most needed topic for nutrition education in nutrition teachers was 'healthy dietary habits and table manners' and this was not significantly different by school groups. Responses on adequate frequency (p<0.01), methods used for nutrition education (p<001), materials for nutrition education (p<0.001), information sources for nutrition education (p<0.001) were significantly different by school groups. Major tasks for activating nutrition education included 'securing the time for implementing nutrition education by reducing work loads' and 'developing standardized nutrition education materials' in schools. Conclusions: Nutrition education at schools might be activated by improving working conditions of nutrition teachers and developing the practical programs that reflect the needs of nutrition teachers.

Visceral Leishmaniasis in Rural Areas of Alborz Province of Iran and Implication to Health Policy

  • Heidari, Aliehsan;Mohebali, Mehdi;Kabir, Kourosh;Barati, Hojatallah;Soultani, Yousef;Keshavarz, Hossein;Akhoundi, Behnaz;Hajjaran, Homa;Reisi, Hosein
    • Parasites, Hosts and Diseases
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    • 제53권4호
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    • pp.379-383
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    • 2015
  • Visceral leishmaniasis (VL) or kala-azar mainly affects children in endemic areas. This study was conducted to determine the seroprevalence of VL using direct agglutination test (DAT) in children living in rural districts of Alborz Province located 30 km from Tehran capital city of Iran. Multi-stage cluster random sampling was applied. Blood samples were randomly collected from 1,007 children under 10 years of age in the clusters. A total of 37 (3.7%) of the studied population showed anti-Leishmania infantum antibodies with titers of ${\geq}1:800$. There was a significant association between positive sera and various parts of the rural areas of Alborz Province (P<0.002). Two children with anti-Leishmania infantum antibodies titers of ${\geq}1:3,200$ indicated kala-azar clinical features and treated with anti-leishmaniasis drugs in pediatric hospital. The findings of this study indicated that Leishmania infection is prevalent in rural areas of Alborz Province. Therefore, it is necessary to increase the awareness and alertness among physicians and public health managers, particularly in high-risk rural areas of the province in Iran.

의료서비스에 대한 접근성의 형평 분석 (Equity of Access to Health Services under National Health Insurance System in Korea)

  • 장동민;문옥륜
    • 보건행정학회지
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    • 제6권1호
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    • pp.110-143
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    • 1996
  • The purpose of this study is to assess the extent of inequality in health outcomes and the distribution of health services according to health need under National Health Insurance System in Korea. For the empirical analysis, data were collected through an interview survey during one month of October, 1994. Interview were conducted with a total of 10, 875 of the employees and the self-employed selected through cluster, systematic sampling. The major findings of this research are as follows: 1. The analysis of the differentials in morbidity rates by socio-economic group showed that health inequality in the pro-higher groups existed in all self-reported morbidity indicators. 2. The findings of the conventional use measures showed that the lower socio-economic groups had more ambulatory and inpatient services than the higher groups. In contrast to the level of the medical care utilization, however, the higher socio-economic groups were more likely to use the high-quality source of care in terms of their treatment place compared to the lower groups. 3. By using the need-based use measures, the results were different from each use-disability ration indicator. Using the use-disability ration measured by physician visits per 100 restricted-activity days in the population, it was found that there was no evidence favoring the higher socio-economic groups. In contrast, the use-disability ration based on physician visits per a chronic patient in one year displayed that there was remarkable relative difference by income group as well as the evidence of the pro-higher income groups. 4. The results of logistic regression analysis and two-stage estimation method indicated that although the utilization is significantly affected by type and duration of insurance coverage, the use or nonuse of service and the volume of physician care consumed is determined by health need and demographic characteristics rater than economic status. In sum, these findings suggest that physician service is equitably distributed according to health need under national health insurance system in Korea. As there were some evidences of inequality including the differential in physician visits of chronic patients by income group, however, the government should strengthen the activities to guarantee the equity of health services utilization.

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성과 에이즈에 관한 보건교육 방법별 효과 측정 (Measurement of Effects of Health Educational Methods on Sex and AIDS)

  • 권관우;이경무;김훈수;김정순;정경균
    • 보건교육건강증진학회지
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    • 제17권2호
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    • pp.111-124
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    • 2000
  • The objective of this study is to find the most effective educational method on Sex and AIDS/HIV among young people in Korea. The number of people with HIV amounts to 1,224 as of Sep. 2000, and is increasing continuously, especially among young people(National Institute of Health, 2000). In setting up the policy of health education on Sex and AIDS, the criteria should be the effectiveness. By two-stage cluster sampling, 4,713 students were selected from among the 19,093 students from 44 middle and high schools and divided into three groups and taken the education with three different methods( 〈lecture with slides show〉, 〈lecture without any material〉 and 〈lecture through broadcasting system〉) by the same lecturer with the same contents for about 50 minutes. To compare the effects of education by methods, the tests on the AIDS knowledge, AIDS attitude on AIDS and Sexuality attitudes with self-administered questionnaire were implemented three times, that is, ‘before’, ‘right after’ and ‘2 weeks later’ of the education. As to the degrees of change of AIDS knowledge, AIDS attitudes, Sexuality attitudes and subjective evaluation of the education, 〈lecture with slides show〉 was the most effective, 〈lecture without any material〉 was the second and 〈lecture through broadcasting system〉 was the least effective, respectively. In the cost-effectiveness analysis using the results of this study, 〈lecture with slides show〉 turned out to be the most effective, and 〈lecture through broadcasting system〉 was the second and 〈lecture without any material〉 was least effective. From these results, it is suggested that 〈lecture with slides show〉 is more effective health educational methods on Sex and AIDS than 〈lecture without any material〉 or 〈lecture through broadcasting system〉.

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Modelling protection behaviour towards micronutrient deficiencies: Case of iodine biofortified vegetable legumes as health intervention for school-going children

  • Mogendi, Joseph Birundu;De Steur, Hans;Gellynck, Xavier;Makokha, Anselimo
    • Nutrition Research and Practice
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    • 제10권1호
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    • pp.56-66
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    • 2016
  • BACKGROUND/OBJECTIVES: Despite successes recorded in combating iodine deficiency, more than 2 billion people are still at risk of iodine deficiency disorders. Rural landlocked and mountainous areas of developing countries are the hardest hit, hence the need to explore and advance novel strategies such as biofortification. SUBJECTS/METHODS: We evaluated adoption, purchase, and consumption of iodine biofortified vegetable legumes (IBVL) using the theory of protection motivations (PMT) integrated with an economic valuation technique. A total of 1,200 participants from three land-locked locations in East Africa were recruited via multi-stage cluster sampling, and data were collected using two, slightly distinct, questionnaires incorporating PMT constructs. The survey also elicited preferences for iodine biofortified foods when offered at a premium or discount. Determinants of protection motivations and preferences for iodine biofortified foods were assessed using path analysis modelling and two-limit Tobit regression, respectively. RESULTS: Knowledge of iodine, iodine-health link, salt iodization, and biofortification was very low, albeit lower at the household level. Iodine and biofortification were not recognized as nutrient and novel approaches, respectively. On the other hand, severity, fear, occupation, knowledge, iodine status, household composition, and self-efficacy predicted the intention to consume biofortified foods at the household level; only vulnerability, self-efficacy, and location were the most crucial elements at the school level. In addition, results demonstrated a positive willingness-to-pay a premium or acceptance of a lesser discount for biofortification. Furthermore, preference towards iodine biofortified foods was a function of protection motivations, severity, vulnerability, fear, response efficacy, response cost, knowledge, iodine status, gender, age. and household head. CONCLUSIONS: Results lend support for prevention of iodine deficiency in unprotected populations through biofortification; however 'threat' appraisal and socio-economic predictors are decisive in designing nutrition interventions and stimulating uptake of biofortification. In principle, the contribution is threefold: 1) Successful application of the integrated model to guide policy formulation; 2) Offer guidance to stakeholders to identify and tap niche markets; 3) stimulation of rural economic growth around school feeding programmes.

Eating habits, physical activity, nutrition knowledge, and self-efficacy by obesity status in upper-grade elementary school students

  • Ha, Seong Ah;Lee, Seo Yeon;Kim, Kyung A;Seo, Jung Sook;Sohn, Cheong Min;Park, Hae Ryun;Kim, Kyung Won
    • Nutrition Research and Practice
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    • 제10권6호
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    • pp.597-605
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    • 2016
  • BACKGROUND/OBJECTIVES: Childhood obesity has increased in recent decades in Korea. This study was designed to examine differences in the eating habits, physical activity (PA), nutrition knowledge, and self-efficacy of children by obesity status. SUBJECTS/METHODS: Subjects were 5th-grade children from 70 elementary schools in 17 cities nationwide. Two-stage stratified cluster sampling was employed. Survey questionnaire included items related to general characteristics, eating habits, PA, nutrition knowledge and self-efficacy. Excluding incomplete responses, 3,531 data were analyzed using SPSS. Subjects were categorized into overweight obesity (OW) and normal weight (NW) groups based on body mass index percentiles for age by sex. RESULTS: A total of 21.5% of subjects was overweight or obese. There were significant differences in gender, perceived stress, perception of body shape, body satisfaction, and interest in weight control between the OW and NW groups (P < 0.001). With respect to eating habits, the OW group ate breakfast (P < 0.05) and snacks (P < 0.01) less frequently, ate bigger meals (P < 0.001), and demonstrated less desirable behaviors during meals (P < 0.05 in boys) compared to the NW group. The OW group participated in less PA than the NW group, especially boys. OW boys spent less time walking during weekdays (P < 0.05) or the weekend (P < 0.001), spent more time being sedentary during weekdays or the weekend (P < 0.001), and exercised a fewer number of days (P < 0.01). For girls, the OW group spent more time being sedentary during the weekend (P < 0.01) and exercised a fewer number of days by walking or bicycle riding (P < 0.05) than the NW group. Nutrition knowledge was not significantly different between the OW and NW groups. Self-efficacy (P < 0.01 in boys), especially PA self-efficacy (P < 0.01), was significantly lower in the OW than NW group. CONCLUSIONS: This study revealed differences in eating habits, PA, and self-efficacy between OW and NW children. Obesity management programs for children need to focus on increasing self-efficacy, modifying eating habits, and increasing PA.

뇌졸중에 영향을 미치는 위험요인 : 국민건강영양조사 제7기(2016-2018) 자료를 활용하여 (Risk Factors Influencing Stroke : using data from the 7th(2016-2018) Korea National Health and Nutrition Examination Survey)

  • 정명실;서문경애
    • 디지털융복합연구
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    • 제18권9호
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    • pp.277-283
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    • 2020
  • 본 연구의 목적은 뇌졸중에 영향을 미치는 위험요인을 파악 하고자 한다. 연구방법은 국민건강영양조사 제7기(2016-2018) 자료를 활용하여 2단계 층화집락표본추출방법을 사용하였다. 연구대상자는 만 19세이상 성인을 대상으로 복합표본 교차분석 및 복합표본 로지스틱 회귀분석을 실시하였다. 연구결과는 일반적특성및 질환특성과 뇌졸중과의 차이검정 결과 연령대(p<.001), 주관적건강상태(p<.001), 현재흡연(p=0.003), BMI(p=0.005), 고혈압진단(p<.001), 당뇨병진단(p<.001), 이상지질형증진단(p<.001)에 따른 뇌졸중 진단유무와의 차이검정은 통계적으로 유의한 차이가 나타났다. 뇌졸중에 영향하는 위험요인으로는 70세이상에서 오즈비가 8.861배, 주관적건강상태가 나쁜그룹에서 오즈비가 4.501배, 고혈압진단을 받은 그룹에서 오즈비가 3.158배, 당뇨병진단을 받은 그룹에서 오즈비가 1.598배 더 높게 나타났다. 뇌졸중은 위험한 만큼 예방을 통해서 관리를 할 수 있으므로 고혈압이나 당뇨병과 같은 만성질환과 노인들의 건강에 대한 관리가 중요함이 연구결과를 통해서 나타났다.

일부 노인의 보완대체요법 이용행태와 영향요인 (Utilization Behaviour and Influencing Factors of Complementary and Alternative Medicine Therapies Among the Elderly)

  • 문기원;김준호;김춘배
    • 농촌의학ㆍ지역보건
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    • 제38권1호
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    • pp.25-38
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    • 2013
  • 이 연구목적은 일부 지역 재가 노인을 대상으로 보완대체요법 이용행태와 그 영향요인을 구명하는데 있다. 2단계 집락추출로 선정된 대구광역시와 경상남도의 2개 시 군의 노인복지시설(9개)을 이용한 60세 이상 노인 233명을 대상으로 보완대체요법 이용현황, 보완대체요법 인지 여부, 만성질환유형에 따른 이용실태 등을 파악하기 위해 교차분석 및 로지스틱 회귀분석을 실시하였다. 그 결과 조사대상 노인의 70.4%(164명)가 지난 1년간 보완대체요법 이용 경험이 있었다. CAM 종류별로 48.8%(64명)~60.7%(88명)의 노인들이 보건의료 전문가와의 상담 없이 이용하고 있었다. 보완대체요법을 인지하고 있는 경우의 이용 경험은 2 이상 높았으며, 이환된 만성질환 수가 많은 경우의 이용경험은 수기요법 5.85(95% CI 1.97-17.34), 영양요법 2.92(95% CI 1.07-7.97), 약물요법 2.92(95% CI 1.04-8.17)로 높았으며, 만성질환 중 당뇨병을 진단받은 경우의 영양요법 이용 경험은 3.76(95% CI 1.49-9.47) 높았다. 노인 만성질환관리를 위해서는 보완대체요법에 대한 명확하고 체계적인 분류, 효과 및 안전성에 대한 객관적 검증과 함께 노인들의 건강상태를 고려한 전문가 및 의료인의 보완대체요법 이용 중재가 필요하다.

천수만에 서식하는 대형저서동물의 춘계와 하계의 군집구조 및 건강도 평가 (Community Structure and Health Assessment of Macrobenthic Assemblages at Spring and Summer in Cheonsu Bay, West Coast of Korea)

  • 정래홍;서인수;이원찬;김형철;박상률;김정배;오철웅;최병미
    • 한국해양학회지:바다
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    • 제19권4호
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    • pp.272-286
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    • 2014
  • 본 연구는 천수만에 서식하는 대형저서동물의 군집구조를 파악하고, 건강도를 평가하는데 목적이 있다. 천수만 해역에서는 총 224종/$5.2m^2$과 1,940개체/$m^2$의 대형저서동물이 출현하였고, 다모류가 111종(평균 $22{\pm}11$종)과 31,525 개체(평균 $1,213{\pm}1,080$개체/$m^2$)의 밀도를 나타내 가장 우점하는 생물이었다. 천수만의 주요 우점종은 이매패류의 아기반투명조개(Theora fragilis), 다모류의 Heteromastus filiformis, 긴자락송곳갯지렁이(Lumbrineris longifolia), Mediomastus californiensis 및 옆새우류의 Eriopisella schellensis 등이었다. 출현 종의 개체수 자료를 기초로 다변량분석(집괴분석과 다차원배열법)을 실시한 결과, 천수만 해역의 대형저서동물 군집은 크게 2개의 그룹(죽도를 중심으로 만의 안쪽해역 정점군과 만의 입구부해역 정점군)과 2개의 정점(춘계와 하계의 정점 2)으로 구분되었다. 한편 천수만의 건강도를 평가하기 위하여 Benthic Pollution Index(BPI)와 ATZI's Marine Biotic Index(AMBI)지수를 이용하였다. 조사기간 동안 BPI지수는 11(bad status, 가장 불량한 상태)~92(high status, 가장 양호한 상태)의 범위를, AMBI는 1.34(good status, 양호한 상태)~4.39(poor status, 불량한 상태)의 범위를 나타내었다. 결론적으로 천수만은 건강도 지수의 평균 값에 있어 BPI와 AMBI지수가 각각 중간 상태(moderate status, 불량과 양호한 상태의 전이단계)와 양호한 상태를 반영하고 있었다.

중고등학생의 에이즈 예방교육(豫防敎育)을 통한 에이즈 지식(知識)과 성의식(性意識) 변화(變化)에 관(關)한 연구(硏究) (A Study on the Change of AIDS Knowledge and Sexual Behavior among Middle and High School Students through AIDS Prevention Education)

  • 권관우;이경무;김정순
    • 한국학교보건학회지
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    • 제12권1호
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    • pp.109-129
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    • 1999
  • AIDS is worldwide problem. It has threatens societies and is potentially a big problem among youth. UNAIDS has warned that collective global responses are necessary; with half of the newly infected being children and young people in 1998, educating youth below age 24 is essential. Because of both their unexpected, strong sexual activities and an easjer tendency to change their behavior than adults, UNAIDS emphasizes the importance of prevention education for youth. In Korea, 4 cases of HIV infection have officially been reported among high school students. Considering the potential seriousness of HIV infection among youth, the Korean AntiAIDS Federation (KAAF) began an education programme for Korean youth (middle & high school pupils) as one intervention method in 1993. The purpose of this study is to evaluate the impact of the education programs performed and to develop a better programme. The intervention method used in this study was mainly a lecture in a big or small auditorium or through broadcasting systems using audio-visual teaching aids. The period of this survey was from Nov. 10 to Dec. 26. in 1998. The subjects surveyed were 792 pupils who were sampled from 12 different middle and high schools in Seoul by a two-stage cluster sampling. Self-recording the structured questionnaire was used for data collection. Data were analyzed by using a paired t-test to compare the knowledge difference before and after the interrention method. A chi-square test to compare the consciousness difference between pre-post-education results was used, and an ANOVA was ased to compare the knowledge difference among the selected groups. Major results of this study are summarized as follows: (1) AIDS knowledge significantly changed after AIDS prevention education. (2) The direct lecture in a big or small auditorium is more effective than an indirect lecture through a broadcasting system or through audio-visual teaching aids. (3) Those who had not seen obscene materials (e.g. pornography films, magazines etc.) acguired much more knowledge than others after AIDS prevention education. (4) Those who had no girlfriend/or boyfriend acquired much more knowledge than the others after AIDS prevention education. (5) As to the attitudes toward chastity, more girls than boys and students who had not seen obscene materials rather than those who already had were liable to support the state ment: "all should remain chase" and their consciousness on "being chaste" changed much more than that of others after intervention. (6) As to the individual evaluation of lectures, 23.1% shows "very good", 44.1% "good", 26.9% "normar" '-' thus, the positive evaluation was to 94.2%. The negative response was 5.8%. (7) As to the desire for AIDS education sponsored by KAAF in the future, more than 90.5% showed a positive reaction. (8) As to the educators in future education methods, pupils wanted lecturers from outside their schood. (9) Students from vocational high schools have seen obscene materials much more than other groups and the percentage of those who had a girlfriend/or boyfriend was higher than that of the others as wello. (10) 90% of those who watched obscene materials responded that they experienced these materials while at middle school and 100% before reaching the second grade of high school. (11) The number of boys who have experienced obscene materials is twice as many as that of girls. (12) The percentage of boys who have a girlfriend is much higher than the percentage of girls who have a boyfriend. (13) Among those who have friends of the opposite sex, 11.1% say that they hare had sexual contact and 20.8% hare experienced kissing and caressing.

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