• 디지털융복합연구
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• 제17권12호
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• pp.535-543
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• 2019

본 연구는 손상환자의 미충족의료 관련요인을 총괄적으로 조사·파악하여 미충족의료에 관련이 있는 요인을 제시하기 위하여 시행되었으며, 연구대상은 국민건강영양조사에 응답한 손상 환자 중 미충족의료 경험이 있는 2169명을 대상으로 시행하였다. 연구방법은 빈도 백분율, Chi-square test, 다중회귀분석을 사용하였고, 이는 SPSS/WIN 23.0 Program를 이용하여 분석하였다. 연구결과, 스트레스가 있을수록, 우울감을 느낄수록, 자살생각을 할수록 미충족의료와 관련이 있는 요인으로 나타났으며, 이는 향후 미충족의료가 발생하지 않도록 의료이용 제도를 개선하고 정책 결정을 하는 데 기여할 수 있을 것으로 사료된다.

• Nutrition Research and Practice
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• 제10권1호
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• pp.81-88
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• 2016

BACKGROUND/OBJECTIVES: Serum ferritin levels are significantly increased after menopause and greatly affect women's health. The aim of this study was to investigate the dietary and non-dietary factors associated with high ferritin levels in postmenopausal women. SUBJECTS/METHODS: Among adult women in 2010-2012, qualified postmenopausal women (n = 3880) were separated into quartiles of serum ferritin. The variable differences among the quartiles of ferritin were determined using either procsurvey chi-square test (${\chi}^2$-test) among categorical variables, or GLM (Generalized Linear Model) among continuous variables. The odds ratio for high ferritin in relation to dietary factors was also determined using procsurvery logistic analysis. RESULTS: Age, obesity, drinking habit, and blood glucose levels were found to be significant indicators of high serum ferritin level after adjusting for all confounding factors. Among the food groups, grain, milk, vegetable, and seaweed intakes were significantly associated with high ferritin levels, but after adjusting for all confounding factors, only grains and vegetables remained significant factors. Among the nutrient groups, calcium, vitamin A, and vitamin C intake were significant factors, but after adjustment, none of the nutrient groups analyzed were associated with a high risk of ferritin. CONCLUSION: Age, obesity, drinking habit, and glucose levels, as well as inadequate intakes of grains and vegetables, were found to be significantly associated with high serum ferritin levels in postmenopausal Korean women.

• 한국학교보건학회지
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• 제12권2호
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• pp.339-356
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• 1999

The purpose of this study is to analyze the factors which influence the college student sex behavior. The results can be used as the basis to establish health polices and a health promotion program to reduce the risks of sexual behavior of college students. The study subjects were random selected from college students in Kyonggido. The 335 subjects were selected from 4 schools including three colleges and one university. The self-administered questionnaires were distributed to 350 students, 335 of which were analyzed (after excluding the 15 incomplete or inaccurate data). The study took place between December 7-19, 1998. Regarding the analysis method, the SPSS program was used. The relationship between social and demographic characteristics and relevant factors was identified through Chi-squared test. The major findings of the study were follows: 1. Of the 335 respondents, thirty seven percent of men and ten percent of women had already experienced sexual intercourse. Significantly more males had experienced sexual experience than women. The majority of students, living with both their parents had less sexually experience than that living without their parents. There were religious differences, that students who believed in buddhism had more sexual experience than christian or catholic students. Students who reported drinking alcohol frequently had more sexual experience than those who didn't and it was statistically significant (${\chi}^2=47.6$ df=4 p=0.000). 2. Sexual awareness was relatively low. High level group of sex knowledge were less sexual experience than middle or low level group (${\chi}^2=6.038$ df=2 p=0.049). Women were more sexually aware than men (${\chi}^2=20.814$ df=2 p=0.000). Groups who had sisters and brothers were more sexually aware than those who few sisters and brothers. 3. Sixty one percent of respondents said that chastity before marriage should be kept but twenty four percent of them felt that it was unnecessary. Opponents to chastity before marriage had more sex experience than those for. It was statistically significant (${\chi}^2=48.967$ df=2 p=0.000). Those who agreed with the questionnaire point 'Even if people are not married, if they love each other, they can have sexual intercourse.' had more sexual intercourse than those who didn't agree. Those who agreed with the questionnaire point 'Even though people doesn't like, they can still have sexual intercourse.' had more sexual intercourse than those who disagree. On this point, men were three times higher of the opinion than women. So we can see the difference in the perception between men and women. As a result of this study, sexual awareness influences sexual attitudes and sexual attitudes influence sexual awareness influences sexual activity includes poor knowledge and uninformed attitudes about sex. Therefore sex education is needed and it is very important to reestablish concepts about sex.

• Journal of Welding and Joining
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• 제3권1호
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• pp.22-31
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• 1985

Hot straining embrittlement is one of the most important factors which cause the brittle fracture initiation even in the service temperature in the case of mild steel and high tensile steel. Therefore it is necessary to analyze thoroughly the hot straining embrittlement occurred in weld HAZ of the structural steels. The behaviors of plastic deformation and fracture toughness at the notch tip of the hot strained weld HAZ in structural steels (SB 41 KS, SA 588-Grade A ASTM) have been studied by the recrystallization technique and crack opening displacement (COD) test method. The obtained results are summarized as follows; 1. The plastic zone is formed at the notch tip of weld HAZ owing to nomotonic and cyclic hot stran, and the maximum plastic strain increases with the accumulated hot straining amounts. 2. The distribution of the effective strain at the plastic deformed zone in HAZ can be determined as follows; (.epsilon. over bar $_{p}$ )$_{\chi}$=.epsilon. over bar $_{cr}$ ( $R_{/chi}$/.chi.)$^{m}$ where, .epsilon. over bar $_{cr}$ : (SB 41; .epsilon. over bar $_{cr}$ = 0.2, SA 588; .epsilon. over bar $_{cr}$ = 0.1) 3. The embrittlement of weld HAZ in SB 41 and SA 588 is influenced by hot strain, and the degree of embrittlement becomes deeper with hot straining amounts. 4. The embrittlement of weld HAZ of SB 41 is not influenced by the hot straining amounts until .epsilon. over bar $_{max}$ = 0.36, $R_{\chi}$ = 0.065mm, however the embrittlement of structure in SA 588 is considerably influenced even by a small quantity of the hot straining amounts.s.

• 대한가정학회지
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• 제24권2호
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• pp.93-112
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• 1986

The purpose of this study is to clarify which some factors among the socio-demographic factors have effect on the housewives behavior on how to buy small electric appliances and how to use them. The questionnaires were distributed in July 1985 to 491 housewives in Seoul. Satistical methods as percentage, frequency, arithmetic mean, chi-square test, t-test and F-test were used for data analysis. RESULTS : 1) The average rate of possessing the automatic rice cooker is 87.8%, the electric frypan is 81.0%, the toaster is 36.9% and the blender is 86.9%. 2. Generally the frequency of use were low. 3) Generally their knowledge on small electric appliances is low. 4) The ability of management in blender was influenced by age, education and in automatic rice cooker was influenced by only education.

• International Journal of Concrete Structures and Materials
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• 제4권2호
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• pp.119-125
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• 2010

In this study, the effects of the fineness modulus of reactive aggregate on ASR expansion and ASR products have been investigated. The reactive aggregate used was metamorphic aggregate originated from Korea. ASR tests were conducted according to accelerated mortar bar test. The morphology and chemical composition of products formed in mortar bars, 5 years after the mortar bar test had been performed, were studied by scanning electron microscopy equipped with energy dispersive spectroscopy. Test results indicated that ASR expansion of mortar bars decrease in linear proportion to the fineness modulus of reactive aggregate. SEM images indicated that mortar bars showed reactive products formed in cement paste, within air voids and within cracks through particles except for the mortar bar with the fineness modulus of 3.25. The EDS analysis of the reactive products showed presence of silica, calcium and sodium, typical of ASR product composition.

• 대한가정학회지
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• 제33권4호
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• pp.289-300
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• 1995

The purpose of this study was to suggest usage that all family members could find satisfaction in the way to use furniture and living room. First of all, methods of research for this purpose were to grip on the points of difference and sameness on the attitude and the actual condition about furniture usage and living room between housewives and woman university students. To make analysis the data, frequency, $\chi$2-test, t-test, F-test and factor analysis were used. The major results are as follows ; 1. There were significant differences in the using time, time zone and life behavior in living room. 2. In furniture usage, housewives and woman university students have significant differences. 3. According to the results of making investigation into degree of satisfaction abut furniture and living room usage, housewives and woman university students have significant differences.

• 한국주거학회논문집
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• 제8권3호
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• pp.131-139
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• 1997

The purpose of this study is to analyse the housing values of the university student. The data is collected through the self-entry questionnaire that designed for this study. The 512 data obtained were analysed by Frequencies. Mean, Factor analysis, t-test, oneway ANOVA, $\chi$$^2$-test. Duncan's Multiple Range Test. The major findings are as follows: 1) The Housing Value was classified of 5 factors which Location-Environment. Social - Psychology, Physical factor of Housing, Life-Conciousness and Investmental of Value. 2) Their relevance variables of Housing value were sex, the educational course and occupation of their father and income. 3) Their preference trend of Housing appeared to the apartment and One-room system, and green tract of the space etc.

• 한국의류학회지
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• 제20권5호
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• pp.738-752
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• 1996

The purposes of this study were 1) to test the interactive effects of usage-situation (wedding receptions, home, and vacation) and personal characteristics (age, income, education, job or self-monitoring) on clothing benefits sought and 2) to identify brand type preference of consumer groups segmented by age, income, education, job or self-monitoring within a situation. The data were collected via a questionnaire from 601 housewives of ages 20's∼ 50's living in Seoul, Korea. The data were analyzed by factor analysis, repeated measure two-way ANOVA and Chi-square test. The results of this study were as follows. First, by repeated measure tow-way ANOVA, there were significant interactions of age and situation, and interactions of education and situation on Youth/Fashion benefits and Brand-value benefits. And interactive effects of education and situation on Self-expression benefits and Economic-value benefits were significant by repeated measure two-way A NOVA. Second, based on x2-test, brand type preference was significant difference between consumer groups segmented by age, education and job within a situation. And preferences of brand type were different among usage situations.

• 가정간호학회지
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• 제16권2호
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• pp.108-114
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• 2009

Purpose: This study utilized a nonequivalent control group pre-post test design to test the effects of foot massage on anxiety and sleep satisfaction response in preoperative patients undergoing abdominal surgery. Method: There were 40 subjects in the study (20 in the experimental group and 20 in the control group). The experimental group received foot massage once a day for 2 days before their operation. Data were analyzed with descriptive statistics including mean, percentage, Chi-square, and t-test. Results: There were significant differences between experimental group and control group in the level of the state anxiety, pulse rate, and sleep satisfaction. Conclusions: Foot massage was effective in reducing anxiety and improving sleep satisfaction in abdominal surgical patients before their operation. Thus, foot massage may be used as an independent nursing intervention. This intervention can be performed anywhere, requires no special equipment, is noninvasive, and does not interfere with patients' privacy.