• 제목/요약/키워드: observed Fisher information

검색결과 14건 처리시간 0.022초

Assessment of the proximity between the mandibular third molar and inferior alveolar canal using preoperative 3D-CT to prevent inferior alveolar nerve damage

  • Lee, Byeongmin;Park, Youngju;Ahn, Janghoon;Chun, Jihyun;Park, Suhyun;Kim, Minjin;Jo, Youngserk;Ahn, Somi;Kim, Beulha;Choi, Sungbae
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제37권
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    • pp.30.1-30.7
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    • 2015
  • Background: The inferior alveolar nerve (IAN) may be injured during extraction of the mandibular third molar, causing severe postoperative complications. Many methods have been described for evaluating the relative position between the mandibular third molar and the inferior alveolar canal (IAC) on panoramic radiography and computed tomography, but conventional radiography provides limited information on the proximity of these two structures. The present study assessed the benefits of three-dimensional computed tomography (3D-CT) prior to surgical extraction of the mandibular third molar, to prevent IAN damage. Methods: This retrospective study included 4917 extractions in 3555 patients who presented for extraction of the mandibular third molars. The cases were classified into three groups, according to anatomical relationship between the mandibular third molars and the IAC on panoramic radiography and whether 3D-CT was performed. Symptoms of IAN damage were assessed using the touch-recognition test. Data were compared using the chi-square test and Fisher's exact test. Results: Among the 32 cases of IAN damage, 6 cases were included in group I (0.35 %, n = 1735 cases), 23 cases in group II (1.1 %, n = 2063 cases), and 3 cases in group III (0.27 %, n = 1119 cases). The chi-square test showed a significant difference in the incidence of IAN damage between groups I and II. No significant difference was observed between groups I and III using Fisher's exact test. In the 6 cases of IAN damage in group I, the mandibular third molar roots were located lingual relative to the IAC in 3 cases and middle relative to the IAC in 3 cases. The overlap was ${\geq}2mm$ in 3 of 6 cases and 0-2 mm in the remaining 3 cases. The mean distance between the mandibular third molar and IAC was 2.2 mm, the maximum distance 12 mm, and the minimum distance 0.5 mm. Greater than 80 % recovery was observed in 15 of 32 (46.8 %) cases of IAN damage. Conclusions: 3D-CT may be a useful tool for assessing the three-dimensional anatomical relationship and proximity between the mandibular third molar and IAC in order to prevent IAN damage during extraction of mandibular third molars.

노인의 건강기능식품 섭취 실태와 영양지수를 이용한 식사의 질 및 영양 평가 (Evaluation of Dietary Quality and Nutritional Status based on Nutrition Quotient and Health Functional Food Intake in the Korea Elderly)

  • 감민주;엄미향;계승희
    • 한국식생활문화학회지
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    • 제34권4호
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    • pp.474-485
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    • 2019
  • This study aim to evaluate dietary quality and nutritional status according to the consumption of health functional food using Nutrition Quotient for Korean elderly (NQ-E) for 288 elderly people attending senior welfare centers in Gyeonggi-do. The questionnaire consisted of items about general information, health functional food, and Nutrition Quotient for Korean elderly (NQ-E). Chi-squared test, Fisher's exact tests, and Analysis of Covariance (ANCOVA) were performed using the SAS program ver. 9.4. Among the male and female subjects, the female subjects consumed more health functional food. The results of the dietary quality and nutritional status difference according to the intake of health functional food showed significant differences only in the areas of variety and abstinence among nutrition quotient factors for men, while no significant differences were observed in any of the nutrition quotient factors for women. In conclusion, focused-nutrition education program and useful guideline is needed for promoting adequate consumption of health functional foods in elderly.

노인의 부정적 정서와 비만과의 관계 (The Relationship between Negative Emotion and Obesity of the Elderly)

  • 김주연
    • 한국산학기술학회논문지
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    • 제18권12호
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    • pp.254-263
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    • 2017
  • 본 연구의 목적은 노인의 부정적 정서와 비만과의 관계를 파악하여 적정 체중관리를 위한 간호중재 개발 시 기초자료를 제공하기 위함이다. 연구 대상자는 충청북도 J시에 위치한 2개소의 노인 복지관을 이용하는 65세 이상의 노인 216명이었으며, 자료수집은 2017년 8월 14일부터 8월 30일까지 설문지 조사와 신체계측을 통하여 이루어졌다. 연구도구는 CES-D, RULS, BPS를 사용하였으며 수집된 자료는 SPSS 22.0통계프로그램을 이용하여 기술통계, t-test, ${\chi}^2-test$, Fisher' exact test, Pearson's correlation, Logistic regression을 분석하였다. 연구결과 대상자들의 체질량지수의 평균은 $23.59{\pm}3.48$이었으며, 31.9%가 비만인 것으로 나타났다. 정상군과 비만군 사이에 통계적으로 유의한 차이를 보였던 변수는 연령(${\chi}^2=8.16$, p=.003), 성별(${\chi}^2=9.27$, p=.002), 흡연 유무(${\chi}^2=7.78$, p=.004), 우울(t=2.54, p=.012)과 사회적 고립감(t=2.98, p=.003)이었고, 우울 (OR,1.04; 95% CI,1.00-1.09)과 사회적 고립감(OR,1.06; 95%CI,1.02-1.11)은 비만의 위험을 높이는 심리적 요인으로 나타났다. 따라서 노인 인구에서의 비만관리를 위하여 우울과 사회적 관계를 적절히 파악하고 측정해야 하며, 신체적, 정신적, 사회적 영역의 요구를 모두 충족시키는 체중관리 프로그램 및 간호중재의 개발이 필요하다.

다중 알레르기 항원 동시 검사 결과의 사상체질 간 비교 연구 (A Comparison study of the Multiple Allergen Simultaneous Test Results by Sasang Constitution)

  • 김영은;이상훈
    • 사상체질의학회지
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    • 제34권4호
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    • pp.13-26
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    • 2022
  • Objectives The purpose of this study was to explore the differences in allergic reactions by type of Sasang constitution using multiple allergen simultaneous test(MAST). Methods This study was conducted using the big data of Korean medical health checkups. Subjects with a history of allergic disease, Sasang constitution type information, and MAST results were included. Subjects who had taken drugs before MAST that affected allergic reactions were excluded. We compared total immunoglobulin E(IgE) concentrations, and the number of positive antigens by Sasang constitution using analysis of variance. The presence or absence of a positive reaction and specific IgE concentration classes of 92 antigens in MAST were analyzed by Fisher's exact test or Chi-squared test. Results The distribution of Sasang constitutional types of Tae-Yang, Tae-Eum, So-Yang, and So-Eum among 147 subjects was 2.7%, 42.9%, 38.1%, and 16.3%, respectively. There was no statistically significant difference in the total IgE concentration, the number of positive antigens, and specific IgE concentration classes for each antigen. There was a statistically significant difference in MAST-positive reaction for alder and pine antigens by type of Sasang constitution, and Tae-Eum had the most. Conclusions Tae-Eum showed a relatively strong positive reaction to a large number of antigens compared to the other types, but no statistically significant difference was observed. It is necessary to continuously investigate allergic reactions to provide evidence for the treatment of allergic diseases by Sasang constitution.