• Title/Summary/Keyword: 유병

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The prevalence of temporomandibular disorders in $16\~18$ aged subjects at Yongin, Kyungkido, Korea (경기도 용인지역 $16\~18$세 연령자의 측두하악장애 유병율에 관한 연구)

  • Cha, Seung-La;Kim, Kwang-Won;Yoon, Young-Jooh
    • The korean journal of orthodontics
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    • v.30 no.2 s.79
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    • pp.223-233
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    • 2000
  • An epidemiological investigation was carried out at Yongin, Kyungkido, South Korea to determine the prevalence of symptoms of temporomandibular disorders and parafunctional habits in adolescent aged 16, 17 and 18 years. 2,098 students(male 507, female 1,591) were randomly selected and investigated with the questionnaire. The results were obtained as follows, 1. The prevalence of symptoms of temporomandibular disorders was $80.9\%$ total, $77.3\%$ for male and $82.0\%$ for female with significance between male and female(P<0.05). 2. The prevalence of symptoms of temporomandibular disorders was gradually increased according to increasing age with significant difference among ages(P<0.001) 3. The most frequent symptom in the temporomandibular disorders is pain on chewing($65.9\%$), and then clicking($50.7\%$), Pain on mouth opening($41.8\%$), and pain on TMJ($36.8\%$) 4. There was little corelationship between clenching habits and symptoms of temporomandibular disorders(r=0.166), and also between bruxing habits and those(r=0.057).

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Frequency of Food Allergy in Korea and the Causative Food Allergens (한국인의 식품 알레르기 빈도 및 알레르기 원인식품에 대한 연구)

  • 한재숙;홍상욱;김정숙;한준표;김능수
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.26 no.1
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    • pp.1-9
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    • 1997
  • To evaluate the prevalence of food allergies and the causative food allergens, 1,469 subjects in various age groups were studied by using a food Allergy questionnaire. Also, specific food antibodies were tested with the MAST method, a chemiluminescent assay, in 84 people who have a positive history of food allergies. The results were as follows : Among the total number of 1,469 subjects, about one- half of the total number(46.6%) have a family history of allergies. According to the questionnaire, the prevalence of food allergies was 11.4%. The group with a family history of allergies showed a higher Prevalence than the group without a family history. Skin allergies were the most common type of food allergies in both groups of male and female subjects. The questionnaire revealed mackerel as the most common food allergen, followed by the allergens of peach, pork, chicken, milk and eggs in decreasing order. According to the MAST allergy test, these diagnosed with an actual food allergy totalled 4.1% of the subjects. Peach and pork were the most common food allergens listed on the MAST results.

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Prevalence-based Interpretation of Predictive Values of Diagnostic Tests: An Example for Detection of Canine Heartworm Infection (진단키트 검사결과에 대한 유병율 위주 해석: 개 심장사상충의 예)

  • Park, Choi-Kyu;Pak, Son-Il
    • Journal of Veterinary Clinics
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    • v.26 no.2
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    • pp.130-133
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    • 2009
  • The use of screening tests as part of a diagnostic work-up is common in domestic canine practice, but understanding of the diagnostic test characteristics and factors affecting diagnostic accuracy is not clear among clinicians. This article was aimed to provide clinicians with a better understanding on the selection of test kits and with a proper interpretation of test results using an example from heartworm(Dirofilaria immitis) studies. From the literatures, diagnostic accuracy varied depending on the kits: percent average sensitivity and specificity of ELISA antigen-detecting kits were DiroChek(Synbiotics, USA) 78.1 and 95.2, SNAP(IDEXX, USA) 66.3 and 98.1, and Solo Step(Heska, Switzerland) 69.5 and 97.5, respectively, while the values for three hematological methods(Modified Knott's, direct smear and capillary tube) ranged from 38.4 to 81.8% and from 96.9 to 100%, respectively. Furthermore, it was also reported that the prevalence of heartworm disease in domestic dog populations varied depending on the regions studied: 2.5-22.8% for microfilarial test and 2.2-66.3% by ELISA. The values of predictive values for positive(PPV) and negative(NPV) provide useful information to clinicians on the probability of heartworm infection, but the PPV and NPV are greatly dependent on the heartworm prevalence. This suggests that PPV or NPV values of a test should be interpreted carefully in different clinical settings. Practical methods on the interpretation taking into account heartworm prevalence were discussed.

Commercial Obesity Management Program (상업성 비만관리프로그램의 현황)

  • 임경숙
    • Proceedings of the KSCN Conference
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    • 2003.05a
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    • pp.82-95
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    • 2003
  • 전세계적으로 비만의 유병율이 빠르게 증가하고 각종 만성질환과의 관련성이 밝혀짐에 따라 세계보건기구는 1996년 비만을 치료가 필요한 질환으로서 인류의 건강을 침해할 주요 보건문제로 제안하였다. 우리나라의 비만 인구도 지속적으로 증가하여, 1998년도 국민건강영양조사에 따르면 약 26%가 비만이며, 또 매년 약 3%씩 증가하는 추세라고 한다. (중략)

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새로운 표적에 초점을 맞추는 무장 헬기

  • Yu, Byeong-Do
    • Defense and Technology
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    • no.8 s.294
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    • pp.64-71
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    • 2003
  • Rooivalk에 채택된 항전장착물은 프랑스의 Sextant가 주 개발자이며 3개의 다기능 디스플레이를 갖는 NVG 호환 G-Cockpit도 포함된다. Thales는 Topowl HMSD도 공급하는데 이것은 Denel사 Cumulus 공장에서 개발된 센서 터렛과 Pilkington Optronics와 공동개발한 Noctua PNVS와 연계된다. Rooivalk의 TDATS는 Topowl과 함께 작동하는 Cumulus사 Argos-780 EO 센서 터렛을 사용하고 있고 열상장비, TV카메라, 레이저 거리측정기, 레이저 표식기 그리고 자동추적기로 구성되어 있다.

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