• Journal of the Korean Society of Radiology
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• v.13 no.1
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• pp.9-14
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• 2019

This study aimed to investigate the performance of the S-detect method in breast ultrasonography and to determine how to reduce unnecessary biopsy by comparing the results of the S-detect method and biopsy. Thirty patients who had undergone breast ultrasonography between August and October 2018 and were scheduled to undergo biopsy because of the presence of breast nodules were retrospectively analyzed. The McNemar test was performed to determine whether detection of a malignant breast mass significantly differed between the S-detect method and biopsy. The following results were obtained from the analysis of the S-detect method: sensitivity, 90.9%; specificity, 84.21%; validity, 86.66%; positive predictive value, 76.92%; and negative predictive value, 94.11%. Analysis of the degree of agreement between the S-detect method and biopsy revealed a kappa value as high as 0.724 (p < 0.05), exhibiting good agreement between the two methods. The S-detect method in breast ultrasonography is diagnostically valuable in terms of distinguishing between malignant and benign breast masses, and if used properly before breast biopsy, unnecessary biopsy can be reduced.

• Korean Journal of Health Education and Promotion
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• v.29 no.2
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• pp.13-21
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• 2012

Objectives: The aim of the study was to identify the effects of a community-level individual health counseling program for community. Methods: Data included baseline demographics, blood pressure, blood sugar, waist circumference, total cholesterol and health behavior index(body mass index, dietary practice guidelines score, physical activity, high-risk drinking) collected at public health centers in Chungnam province from January to September, 2011. Data obtained from the individual health counseling program in Chungnam province were analyzed using Wilcoxon Signed Rank Test and McNemar Test. Results: After the individual health counseling intervention, the results of health measurement index; systolic blood pressure, diastolic blood pressure, total cholesterol, waist circumference decreased in the health risk group, while total cholesterol and waist circumference decreased in the disease management group. Health behavior change in both groups. Body mass index, moderate physical activity, dietary practice guidelines scores were improved. Conclusions: These results indicate that the individual health counseling program for community was effective in improving health behaviors and status. The results demonstrate that step-by-step counseling program development and intervention studies are needed.

• The korean journal of orthodontics
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• v.43 no.2
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• pp.74-82
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• 2013

Objective: The purpose of this study was to evaluate displacement of the mandibular condyle after orthognathic surgery using a condylar-repositioning device. Methods: The patient group comprised 20 adults who underwent bimaxillary surgery between August 2008 and July 2011. The degree of condylar displacement was measured by pre- and postoperative tomographic analysis using centric relation bite and a wire during surgery. A sur vey assessing temporomandibular joint (TMJ) sound, pain, and locking was performed. The 20 tomographs and surveys were analyzed using the Wilcoxon signed-rank test and McNemar's test, respectively. Results: No significant changes were observed in the anterior, superior, or posterior joint space of the TMJ (p > 0.05). In addition, no significant change was observed in TMJ sound (p > 0.05). However, TMJ pain and locking both decreased significantly after surgery (p < 0.05). Conclusions: Due to its simplicity, this method may be fea sible and useful for repositioning condyles.

• Journal of Preventive Medicine and Public Health
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• v.21 no.1 s.23
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• pp.82-88
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• 1988

The main objectives of this study were to know the prevalence of cerebrovascular diseases, to find the important risk factors of cerebrovascular diseases. This study is a part of Eumseong Community Health Project supportes by GTZ(West German Goverment). 116 perceived cases of cerebrovascular diseases were first screened by health interview and examinations and 80 cases were diagnosed as a cerebrovascular group. For comparison, 80 cases were matched with their neighbor controls of the same sex and the similar age. 1. The prevalence rate for cerebrovascular diseases was 476.3 per 100,000 population which is considered to be very high compared with that of other countries. Age adjusted rate for cerebrovascular diseases was 261.6 per 100,000. 2. Among the risk factors examined for the association with cerebrovascular diseases by case-control study, and analysed by paired marginal test(McNemar's $X^2$-test) and odds ratio, only hypertension showed high significant statistical association.

• Asian Pacific Journal of Cancer Prevention
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• v.16 no.9
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• pp.4089-4094
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• 2015

The purpose of the research was to determine the effect of home care service on the quality of life in patients with gynecological cancer. This randomized case control study was carried out in a womans hospital between September 2011 and February 2012. Women undergoing gynecological cancer treatment were separated into intervention and control groups, of 35 patients each. The intervention group was provided with nursing care service through hospital and home visits ($1^{st}$, $12^{th}$ weeks) within the framework of a specifically developed nursing care plan. The control group was monitored without any intervention through the hospital routine protocols ($1^{st}$, $12^{th}$ weeks). Data were collected using An Interview Form, Home Visit Monitoring Form and Quality of Life Scale/Cancer Survivors. Effects of home care service on the quality of life in gynecological cancer patients were investigated using chi-square tests, McNemar's test, independent t-test and ANOVA. This study found that the intervention group receiving home care service had a moderately high quality of life (average mean: $6.01{\pm}0.64$), while the control group had comparatively lower quality (average mean: $4.35{\pm}0.79$) within the 12 week post-discharge period (p<0.05). This study found home care services to be efficient in improving the quality of life in patients with gynecological cancer.

• Korean Journal of Veterinary Research
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• v.49 no.2
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• pp.121-125
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• 2009

Paratuberculosis caused by Mycobacterium avium subspecies paratuberculosis (Mpt) is a chronic infectious enteric disease with deleterious impact on the performance in ruminants. In Korea, ELISA has been introduced to detect antibodies to Mpt in individual cattle. However, comparison study with ELISA has not been studied until now. In total, a panel of 899 serum samples obtained from dairy cattle was analyzed with two commercial ELISAs for Mpt to assess the performance. Two ELISAs employed in this study were both licensed worldwide. Two ELISAs applied onto same serum samples showed the moderate agreement (kappa value = 0.60). There was non-significant McNemar test (p = 0.0614) between two ELISA results indicating that each proportion detected by two kits did not differ. In addition, the percent agreement between two ELISA results was turned out to be 96.8% which interpreted excellent reproducibility. It was shown from this study that two ELISAs revealed moderate kappa agreement performance. The implication raised is that when ELISAs as diagnostics are used to detect Mpt in individual cattle, positive reaction by either ELISA should be interpreted as serologically Mpt positive due to presumed low sensitivity of ELISAs and their test agreement being less than 100%.

• Journal of Korean Biological Nursing Science
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• v.8 no.2
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• pp.29-39
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• 2006

The aim of this study was to examine the effect of telephone follow-up on glycemic control, lipid profiles. and treatment method in diabetic patients with depressive symptoms over one year follow-up period. Twenty-two diabetic patients attended the structured diabetes education program between March 2004 and February 2005 and completed a questionnaire using the Beck Depression Inventory(BDI) to measure depressive symptoms. The patients showed depressive symptoms with the criterion being a BDI score at least 16. The intervention was applied to the telephone follow-up for one year. Data were analyzed using Wilcoxon signed rank test and McNemar test. The patients decreased their mean glycosylated hemoglobin(HbAlc) levels by 1.9%(p=0.001). There was a significant mean change in the fasting blood sugar(FBS) level, with a mean change of -61mg/$d{\ell}$(p=0.008). These findings indicated that the telephone follow-up may be effective in the HbAlc and FBS control.

• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.474-478
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• 2009

본 연구는 2008년 맞춤형 방문건강관리사업에 사용되고 있는 관절통증을 중심으로 한 사례관리를 수정 보안하여 우리나라 실정에 맞는 관절통증 사례관리 프로그램을 개발, 제안하며, 맞춤형 방문건강 관리사업의 활성화와 완성도를 높이는데 있다. 연구방법으로는 2007년 전국 12주 관절통증 사례관리 결과자료 분석하고, 전국 253개 보건소의 맞춤형 방문건강관리사업 인력에 대한 자료 분석과 전국 보건소 전문가 자문회의와 토론 결과를 통해 설문지를 수정 보완하여 2008년도 충청남도 관절통증 12주 사례관리를 실시하였다. 자료분석은 SPSS 12.0 통계 프로그램을 이용하여, p-value가 0.05 미만과 0.01미만인 경우를 통계적으로 유의한 것으로 판정하였으며, 전국자료는 빈도분석, wilcoxon 부호순위 검정과 McNemar's 검정을 실시하였으며, 12주의 관절통증 사례관리의 연구기간동안 수집된 자료를 1주와 8주간, 1주와 12주간, 8주와 12주간을 paired t-test 검정과 McNemar's 검정을 실시하여 유의성 평가를 실시하였다. 연구결과는 다음과 같다. 12주 기간 동안 사전 사례관리 방문간호사의 교육을 통한 사례관리 서비스의 강도의 조절 및 매주로 서비스의 횟수를 조절하여 사례관리를 실시한 결과 총 109개 항목에서 1주와 8주간에 유의한 항목은 TG(mg/dl)를 비롯한 51개 항목, 1주와 12주간에는 콜레스테롤(mg/dl)을 비롯한 53개 항목, 8주와 12주간에는 지난 48시간동안 관절통증 점수를 비롯한 3개 항목으로 유의한 차이를 볼 수 있었으며, 1주와 8주간은 유의하나 1주와 12주간은 유의하지 않게 나타나는 항목은 TG(mg/dl)를 비롯한 3개 항목, 1주와 8주간은 유의하지 않다가 1주와 12주간은 유의하게 나타나는 항목은 콜레스테롤(mg/dl)를 비롯한 6개 항목, 1주, 8주, 12주간의 모든 기간에서 유의한 항목은 지난 48 시간동안 관절통증 점수를 비롯한 3개 항목으로 조사되었다. 결론적으로 현재 우리나라에서 추진되고 있는 맞춤형 방문건강관리 사업의 사업지침에 대한 보완을 위해 관절통증사례관리 프로그램에 있어 중재 서비스 또는 프로그램의 기간은 12주간에서 8주간으로 조정 되어야 하며, 추가가 필요한 항목으로는 교육, 자기역량 강화, 운동처방, 물리치료, 약물치료, 대체요법, 식이, 영양, 생활지도 등이며, 어골도 분석을 위한 기본 틀 및 주요 구성요소를 제시 및 기여 요인 및 결정요인을 위한 논리적 모형 제시가 필요하며, 개선목표를 위한 유지증진 및 관리능력, 지기 관리 수행도 개선과 대상자별 맞춤형 사례관리를 위한 표준화된 행동 체크리스트 제작 보급 및 사례별 운동, 물리치료 지도 방법 계획 수립에 대한 인력 충원이 필요하다.

• Communications of Mathematical Education
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• v.24 no.2
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• pp.445-474
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• 2010

The results of performing first survey after learning linear equation and second survey after 5 months to find out whether there is change in solving process while seventh grade students solve linear equations are as follows. First, as a result of performing McNemar Test in order to find out the correct answer ratio between first survey and second survey, it was shown as $p=.035^a$ in problem x+4=9 and $p=.012^a$ in problem $x+\frac{1}{4}=\frac{2}{3}$ of problem type A while being shown as $p=.012^a$ in problem x+3=8 and $p=.035^a$ in problem 5(x+2)=20 of problem type B. Second, while there were students not making errors in the second survey among students who made errors in the solving process of problem type A and B, students making errors in the second survey among the students who expressed the solving process correctly in the first survey were shown. Third, while there were students expressing the solving process of linear equation correctly for all problems (type A, type B and type C), there were students expressing several problems correctly and unable to do so for several problems. In conclusion, even if a student has expressed the solving process correctly on all problems, it would be difficult to foresee that the student is able to express properly in the solving process when another problem is given. According to the result of analyzing the reaction of students toward three problem types (type A, type B and type C), it is possible to determine whether a certain student is 'able' or 'unable' to express the solving process of linear equation by analyzing the problem solving process.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.31 no.1
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• pp.94-104
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• 2021

Objectives: A number of medical institutions have been conducting fit tests to perform seal checks on masks. This study aimed to compare the differences fit factor before and after domestic N95 mask-wearing training through a fit-test. Methods: A survey of 59 healthcare workers was conducted regarding whether they had undergone a fit test or received training on mask-wearing. Further, the fit of two types of domestic N95 masks was measured before and after the training using a QNFT(Quantitative Fit test). The average fit factors before and after training were compared using a paired t-test. Additionally the differences in the fit test pass rate were analyzed using a McNemar test. Results: A statistically significant difference was seen between the fit factors in the fit tests conducted before and after the training (p=0.0015), as well as in the fit of the two types of masks tested (p<0.01). Thus, an improvement in mask fitting was seen after the training, even with differently fitted masks. Conclusions: Upon using a QNFT, a significant increase in the fit factors for N95 masks was observed after training compared with masks that were fitted as usual. This highlights the importance of training in mask-wearing, with the conclusion that training healthcare providers will improve the fit of masks.