• 제목/요약/키워드: age norms

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Age, extraction rate and jaw surgery rate in Korean orthodontic clinics and small dental hospitals

  • Jung, Min-Ho
    • 대한치과교정학회지
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    • 제42권2호
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    • pp.80-86
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    • 2012
  • Objective: This study aimed to investigate the current data regarding age, sex, and Angle Classification of Korean orthodontic patients and influence of these factors on the tendency to undergo extraction and orthognathic surgery. Methods: The recent trends of Korean orthodontic patients were assessed using questionnaire survey. The questionnaires were e-mailed to orthodontists who met the study criteria; 58% of the orthodontists opened the e-mails, and 27.7% replied to the e-mails. In all, the medical records of 11,340 patients who underwent orthodontic treatment at private clinics and small dental hospitals in Korea were analyzed. Results: The percentage of female patients in the study sample was 69.6%, and the average age of the patients was 19.87 years. The percentage of patients who were older than 19 years was 50.2%. Class II and Class III malocclusions were noted in 33.6% and 23.6% of patients, respectively. Extraction and orthognathic surgery were performed in 60.4% and 6.9% of patients, respectively. Conclusions: The results showed that there were a high percentage of adult, Class II malocclusion and extraction patients in private practices and small dental hospitals during the study period. Further, a relatively high proportion of adult patients opted to undergo orthognathic surgery.

Moyers 분석법에 의한 한국인 정상교합자의 안면두개골격에 관한 연구 (A ROENTGENOCEPHALOMETRIC STUDY OF CRANIOFACIAL SKELETAL CHARACTERISTICS OF KOREAN NORMAL OCCLUSION BY MOYERS' ANALYSIS)

  • 홍영란;이기수
    • 대한치과교정학회지
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    • 제20권2호
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    • pp.391-407
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    • 1990
  • This study was performed to establish the cephalometric standards and to observe the nature of anatomic fit in the internal structural relationship of the craniofaciodental complex of the normal Korean by means of Moyers' method. Lateral cephalograms of 143 males and 144 females with normal occlusion and acceptable profile from 6 to 25 years of age, which were consisted of 5 groups that were 6 year-, 9 year-, 12 year-, 15 year- and adult-group were obtained. Data were gathered by traced digitizing the cephalograms and were statistically analyzed. The findings can be summerized as follows. 1. Norms of Korean males, females and both sexes in each group were established. 2. There was little significant sexual dimorphism in the form of craniofacial skeleton of all age groups. 3. The height and length of craniofacial skeleton was alike in each sexes in the 6 year-, 9 year- and 12 year-group, whereas it was larger in male than in female in the 15 year- and adult-group. 4. There were no significant sexual differences in the internal structural relationship of the craniofacial skeleton in all age groups.

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악골의 전후방 관계를 평가하는 계측치변화에 관한 누년적 연구 (A LONGITUDINAL STUDY OF THE CHANCES IN THE ANTEROPOSTERIOR APICAL BASE RELATIONSHIP BETWEEN 6 AND 13 YEARS OF AGE)

  • 박인옥;손병화
    • 대한치과교정학회지
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    • 제19권1호
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    • pp.137-151
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    • 1989
  • To help arrive at a more accurate diagnosis of anteroposterior apial base relationship on each individual case, it is important to compare the interpretation in the same population on a longitudinal basis. The author studied on the changes of the anteroposterior apical base relationship using serial lateral cephalometric roentgenograms of 15 boys and 27 girls aged from 6 to 13 years of Korean children. Following results were obtained 1. Norms of Korean boys and girls were established. 2. With ages, there was a gradual decrease of ANB, AXB angle, and there was a gradual increase of facial angle, A-B plane angle, APDI. 3. Wits appraisal does not change significantly with ages. 4. No significant differences were observed in the changes between male and female subjects for all absolute values between the ages of 6 years and 12 years, but significant differences were observed in ANB, AXB, A-B plane angle of the age of 13 years. No significant differences were observed in the changes between male and female subjects for all incremental values between the ages of 6 years and 13 years.

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한국 유아용 Burks 행동평정척도(K-BBRS-2) 타당화를 위한 예비연구 (A Preliminary Validation Study on the K-BBRS-2 for Young Children)

  • 이경옥;오새니;심혜진;이상희
    • 한국보육지원학회지
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    • 제12권3호
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    • pp.159-176
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    • 2016
  • The purpose of this study was to provide initial information aboutthe reliability and validity of the Korean version of the BBRS-2(Burks Behaviors Rating Scales, Second Edition). Data were collected for 217 children aged 3-5. K-BBRS-2 consists of a total of 93 questions in 7 factors. The results were as follows. First, internal consistency of the7 factors ranged from 0.81 to 0.94.Results of the confirmatory factor analysis confirmed that the 7-factor model presented in the original tool was the most appropriate. Second, children's maladaptive behavior in Korea based on K-BBRS-2 indicated evidence of validity with a meaningful correlation with children's self-esteem and peer relationships. Third Korean children's maladaptive behavior was not to have significant difference by age of children. The conclusion was that it is not necessary to calculate independent norms for age. Also, when considering gender differences, it was shown that maladaptive behavior appears more in boys than girls. K-BBRS-2 is expected to be utilized as a suitable tool for measuring the maladaptive behavior of Korean children. A nationwide standardized study for Korean children and further research with clinical groups is needed.

한국아동의 지적 특성: 한국 Wechsler 유아지능검사 4판(K-WPPSI-IV)의 수행분석 (Intellectual Characteristics of Korean Children: Analyses of K-WPPSI-IV Performance)

  • 박혜원;이경옥
    • 아동학회지
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    • 제37권6호
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    • pp.157-168
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    • 2016
  • Objective: This study examined the intellectual characteristics of 1,700 Korean children aged 2 years, 6 months to 7 years, 7 months across two age ranges (2 years, 6 months to 3 years, 11 months; 4 years to 7 years, 7 months). Methods: Data from the standardization study of the K-WPPSI-IV were analyzed using Korean and American norms and in terms of socioeconomic variables such as region, maternal education level, and child gender. Results: Korean children performed differently from their American counterparts in most subtests and indexes. Verbal subtest performances for Korean children were significantly lower and performance subtest performances for Korean children were significantly higher. There were significant regional differences, with higher performances among children from Seoul than from other areas. Children whose mothers had higher education levels showed higher performances than their counterparts. This trend was more apparent in the older age range. Gender differences were found in most subtests, with girls showing higher scores than boys. Conclusion: This study revealed cross-cultural differences in intellectual characteristics measured with the newly standardized K-WPPSI-IV. In addition, significant effects of socioeconomic variables such as region, maternal education level, and gender were found.

지역사회 여성 노인 음성의 음향학적 특성: 거주지 및 우울감의 영향 (Acoustic Characteristics of Female Senior Citizens in Communities: The Effects of Residence and Depression)

  • 황재호;김정완
    • 말소리와 음성과학
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    • 제4권4호
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    • pp.155-162
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    • 2012
  • The population of Korea is ageing as the number of elderly people increases due to improvements in health care and diet. Accordingly, it is expected that interest in how to live actively during the years after retirement and how to communicate effectively will increase the demand for voice improvement methods and technology. However, the criteria to evaluate the voice strength and characteristics of the elderly are lacking. In this study, we analyzed the acoustic characteristics of elderly women living in the community according to residential status and mental health status (e.g. depressive mood). Accordingly, we selected women (n=63) above the age of 65 age who were living in the Seoul metropolitan area and Daegu Gyeongbuk. The selected subjects were divided into two groups: a normal speaker group (n=40) and a speaker group comprised of those suffering from depressive mood (n=23). This study analyzed the voice characteristics of subjects based on collected data through the sustained phonation of the vowel /a/. It was shown that there were differences among MPT, F0, Jitter, Shimmer and NHR depending on location of residence but no difference with regard to depressive mood. Therefore, we must consider location of residence in elderly as the key factor in demonstrating the voice norms of seniors.

서울 남자 직장인의 건강행위실천별 건강식품 섭취 행동 의도 및 영향 요인 (Health Food Intake and Behavioral Intentions to Take Health Food on Male Workers by Practiced Health Behavior in Seoul)

  • 이승교
    • 한국지역사회생활과학회지
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    • 제21권2호
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    • pp.243-257
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    • 2010
  • This study was conducted to search the health food intake behavioral intentions of male workers. The health-related behavior of 150 subjects were compared(smoke, alcohol drink, breakfast, BMI, sleep, exercise and health check). On the basis of the Theory of Planned Behavior, the factors health-food intake behavior were evaluated; there were normative beliefs, motivation for compliance, subjective norms, social influence factors, and barriers as perceived behavior control. The results were showed with five points by the Likert scale and Significance by t-test. The most frequently consumed health food was tea(3.40/4points) followed by healthy drinks(2.49/4). As behavioral beliefs, if consumption of 'nutritional supplements'(3.61/5) and 'fatigue recovery'(3.62/5) received the highest scores. As a result, the idea of 'nutritional supplements'(3.94/5) and 'fatigue recovery'(4.06/5) were the important aspects, but others were also positively evaluated. As a sub-factor of subjective norms on normative beliefs, The highest social groups to encourage consumption of health food were parents (3.93/5), and the lowest were doctors (3.02/5). The most influential people were doctors (3.67/5) and spouses (3.65/5). Barriers to consumption health food were side effects (1.09/5) and price (2.08/5). Taking Ginseng products and other processed foods (juice, honey, bamboo, etc.) were correlated with health concern (p<0.05). Taking traditional stamina foods was correlated with dietary habit recognition (p<0.05). Mineral intake was positively correlated with age. Healthy drinks was negative (p<0.05). Minerals and supplement consumption were correlated with the practice of healthy behavior (p<0.01).

친환경 아웃도어 웨어 제품 구매의도 결정요인 : 가치-신념-규범 이론을 중심으로 (Determinants of Eco-friendly Outdoor Wear Products Purchase Intention : Exploring Value-Belief-Norm Theory)

  • 김영화;오경화;정혜정
    • 한국의류산업학회지
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    • 제17권6호
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    • pp.965-977
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    • 2015
  • This study aims to investigate determinants that included personal values, pro-environmental beliefs, and proenvironmental norms for enhancing consumers' purchase intention of eco-friendly outdoor wear exploring Stern(2000)’s the value-belief-norm theory. A survey was conducted with females and males between the ages of 20 and 60 who have experienced buying outdoor wear products. A total of 300 responses were analyzed by descriptive analysis, factor analysis, a reliability test, an independent samples t-test, and regression analysis. The results of this study were as follows: 1) The results of exploratory factor analysis and reliability test on the personal value clearly showed factorial structures including the social power, ecologic value, openness, equality, and altruistic value. 2) There are significant differences in personal value sub-dimensions, pro-environmental beliefs, pro-environmental norm, and purchase intention of eco-friendly outdoor wear products according to respondents' gender and age. 3) Personal values, but not social power, affect pro-environmental beliefs; in turn, pro-environmental beliefs affect pro-environmental norms, which then affects purchase intentions of eco-friendly outdoor wear. The findings support the conclusion that there is significant causality among personal value such as ecologic, openness, equality, and altruistic, pro-environmental belief, and pro-environmental norm. This study suggests pragmatic implications to understand outdoor wear consumers' socio-psychological and demographic factors and to augment purchase intentions of eco-friendly outdoor wear products.

여대생들의 체중조절 실태 및 관련 요인에 대한 연구 (A Study on Weight Control Attempt and Related Factors among College Female Students)

  • 김경원;이미정;김정희;심영현
    • 대한지역사회영양학회지
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    • 제3권1호
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    • pp.21-33
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    • 1998
  • The purpose of this study was to investigate the weight control attempts and related factors among 220 female college students in Seoul. Factors examined included body image, body satisfaction, interest in weight control, beliefs related to weight control, social norms, social expectations regarding subjects' body size and weight change. Data were analyzed using t-test and chi-square test(at $\alpha$=0.05). The average height and weight of subjects were 160.7cm, 52.2kg respectively. BMI and body fat(%) were 20.2 and 25.2%, respectively. One hundred seventy two students(78.2%) had attempted to control their weight, mainly to lose weight, and were categorized as the weight control attempt group. Subjects used diet modification as well as unhealthy method to control weight. 48.2% in the attempt group were underweight or normal weight(by BMI), suggesting that their weight control attempts were was unnecessary. Students in the attempt group described their own size as heavier than those in the no-attempt group(p<0.01) or other girls of their age(p<0.05) ; more dissatisfied with their body size(p<0.01), and showed more interest in weight control(p<0.01). Several differences in beliefs were also noted(p<0.001). The attempt group believed less strongly in the harmful effects or difficulties in weight control and believed more strongly in the advantages of weight control. With respect to social factors, the attempt group perceived that their family and friends wanted them to be smaller than they were(p<0.001), perceived that significant others felt that they should lose weight(p<0.05). These results suggest that educational programs for college female students should start focusing on the harmful effects of excessive dieting and information about desirable weight control methods. Students should be helped to have a correct body image. In addition, educational programs should incorporate strategies to change beliefs regarding weight control, as well as modifying social expectations from significant others.

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사서교사의 도서관 협력수업 실행의도 영향요인 연구 (Factors Affecting Teacher Librarians' Intentions to Implement Collaborative Instruction in School Libraries)

  • 김승희;박지홍
    • 한국문헌정보학회지
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    • 제53권4호
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    • pp.121-142
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    • 2019
  • 본 연구의 목적은 계획행동이론을 적용하여 사서교사의 도서관 협력수업 실행의도를 설명하는 것이다. 사서교사의 도서관 협력수업 실행의도에 영향을 미치는 변수로 태도, 주관적 규범, 교사효능감 및 지각된 통제가능성을 설정하고, 사서교사 218명을 대상으로 한 설문조사를 실시하여 연구모형을 검증하였다. 연구결과, 사서교사 연령이 30대인 경우, 근무학교의 규모가 작은 경우, 도서관 협력수업 경험이 있는 경우에 도서관 협력수업 실행의도가 높게 나타났다. 계획행동이론에 따른 변수 중 태도, 주관적 규범, 지각된 통제가능성은 사서교사의 도서관 협력수업 실행의도에 영향을 미쳤다. 반면에 교사효능감은 도서관 협력수업 실행의도에 영향을 미치지 않았다. 개방형 문항을 활용하여 통합적으로 연구결과를 해석하였으며, 이를 바탕으로 도서관 협력수업을 확대하기 위한 방안을 제시하였다.