• Title/Summary/Keyword: Multiple linear Regression

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Lung Cancer Knowledge among Secondary School Male Teachers in Kudat, Sabah, Malaysia

  • Al-Naggar, Redhwan Ahmed;Kadir, Samiah Yasmin Abdul
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.1
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    • pp.103-109
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    • 2013
  • Background: The objective of this study is to determine knowledge about lung cancer among secondary school male teachers in Kudat, Sabah, Malaysia. Materials and Methods: A cross-sectional study was conducted among three secondary schools located in Kudat district, Sabah, Malaysia during the period from June until September 2012. The protocol of this study was approved by ethics committee of Management and Science University, Malaysia. The aims were explained and a consent form was signed by each participant. Respondents were chosen randomly from each school with the help of the headmasters. Self-administrated questionnaires, covering socio-demographic characteristics and general knowledge of lung cancer, were distributed. Once all 150 respondents completed the questionnaire, they passed it to their head master for collecting and recording. All the data were analyzed using Statistical Package for the Social Sciences (SPSS) version 13. ANOVA and t-test were applied for univariate analysis; and multiple linear regression for multivariate analysis. Results: A total of 150 male secondary school teachers participated in this study. Their mean age was $35.6{\pm}6.5$ (SD); maximum 50 and minimum 23 years old. More than half of the participants were Malay and married (52%, 79%; respectively). Regarding the knowledge about lung cancer, 57.3% of the participants mentioned that only males are affected by lung cancer. Some 70.7% mentioned that lung cancer can be transmitted from one person to another. More than half (56.7%) reported that lung cancer is not the leading cause of death in Malaysian males. As for risk factors, the majority reported that family history of lung cancer is not involved. However, 91.3% were aware that cigarettes are the main risk factor of lung cancer and more than half (52%) believed that second-hand smoking is one of the risk factor of lung cancer. More than half (51.3%) were not aware that asbestos, ionizing radiation and other cancer causing substances are risk factors for lung cancer. Quitting smoking, avoiding second-hand smoking and avoiding unnecessary x-ray image of the chest (53.3%, 96.0%, 87.3%; respectively) are the main preventive measures mentioned by the participants. For the factors that influence the participants knowledge, univariate and multivariate analysis showed that only race was significant. Conclusions: Overall, the knowledge of school male teachers about lung cancer was low. However, few items were scored high: cigarettes are the main risk factor; avoiding second-hand smoking; and avoiding x-rays. Interventions to increase lung cancer awareness are needed to improve early detection behavior. Increase the price of pack of cigarettes to RM 20 and banning smoking in public places such as restaurants are highly recommended as primary preventive measures.

Lifestyle Practice among Malaysian University Students

  • Al-Naggar, Redhwan Ahmed;Bobryshev, Yuri V.;Mohd Noor, Nor Aini Binti
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.3
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    • pp.1895-1903
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    • 2013
  • Background: It is well established that a healthy lifestyle is of benefit in the prevention of diseases such as cancer and promotion of well-being. Therefore, the objective of this study was to determine lifestyle practice and associated factors among university students in Malaysia. Materials and Methods: A cross sectional study was conducted over six months from November 2011 until May 2012 among the students from the Management and Science University. This study was approved by its ethical committee, the students being explained the objective and invited to participate. A consent form was signed by all study participants. Questionnaire was distributed randomly to the students of the five faculties through their lecturers in different faculty. For univariate analysis t-test and ANOVA test were performed. Multiple linear regression used for multivariate analysis using SPSS 13.0. Results: A total number of 1100 students participated with a mean age of $22.1{\pm}2.21$ (SD) years. The majority were 22 years or younger (56.3%), female (54%), Malay (61.5%), single (92.3%), with family monthly income ${\geq}5000$ Ringgit Malaysia (41.2%). Regarding lifestyle, about were 31.6% smokers, 75.6% never drank alcohol and 53.7% never exercised. Multivariate analysis showed that age, sex, race, parent marital status, participant marital status, type of faculty, living status, smoking status, exercise, residency, brushing teeth, fiber intake and avoid fatty food significantly influenced the practice of drinking alcohol among university students (p=0.006, p=0.042, p<0.001, p=0.003, p=0.002, p<0.001, p<0.001, p<0.001, p<0.001, p<0.001, p<0.001, p=0.003, p<0.001; respectively). It similarly showed that sex, race, parent marital status, participant marital status, monthly family income, exercise, residency, brushing teeth and fiber intake significantly influenced the practice of sun protection (p<0.001, p<0.001, p<0.001, p<0.001, p<0.001, p=0.017, p<0.001, p<0.001, p<0.001; respectively) and that age, sex, parent marital status, participant marital status, type of faculty, living status, exercise, taking non-prescribed medication, brushing the teeth, coffee consumption and fiber intake were significantly influenced the practice of fruits consumption (p=0.008, p<0.001, p<0.001, p<0.001, p<0.001, p<0.001, p<0.001, p<0.001, p=0.002, p<0.001, P<0.001; respectively). Conclusions: This study showed a poor practice of healthy lifestyle among university students. Therefore universities should emphasize a healthy lifestyle in all faculties as a required subject. Socio-demographic characteristics significantly influenced practice and thus should be considered when planning preventive measures among university students. Frequent campaigns and educational seminars are to be encouraged.

A Study on Self-image and Clothing-Purchasing-Behavior of Adolescence (여고생의 자아 이미지와 의복구매 행동에 관한 연구)

  • 김영신;한명숙
    • The Research Journal of the Costume Culture
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    • v.6 no.1
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    • pp.94-109
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    • 1998
  • The objective of this study is to measure self-image of adolescence, analyze empirically clothing-purchasing-behavior of adolescence and clarify correlation of two variables, self-image and clothing-purchasing-behavior. For this purpose, the techniques involve theoretical studies and researches based on historical obtained from previous related studies and surveys, 431 high school female students who reside in Seoul are asked to answer selected survey questions to examine three aspects, clothing-purchasing-behavior, self-image and demographics. The evaluation of surveyed information is analyzed by statistical techniques to improve the accuracy of data. Statistical methods used are as follows; Descriptive(frequency, mean, percentage), Factor Analysis(varimax rotation), Crosstabs(Chi-square), T-test, One-Way ANOVA< Correlation Analysis, Reliability Analysis and Duncan's Multiple Range Test. The mjor results of this study were as follows: Firstly, there is a discrepancy between real self-image and ideal self-image. Furthermore more significant differences is seen from physical aspects than psychological aspects. Consequently, research proves that the difference derived from their ideal situation and real situation leads to psychological unstableness. In addition, making their real self-image is dependent upon several elements such things as family economic level, pocket money, expenditure on clothing. Therefore, it is critical to combine all factors in order to decide how much to spend for children's clothing and pocket money in parents point of view. Secondly, research shows that shows hat there is correlated relationship between average expenditure on clothing and presence of mother's job. Average expenditure on clothing is, generally, influenced by vogue which is tend to be changed seasonally. It, also, shows that there is positive linear regression between expenditure on clothe and sensitivity for vogue. That is to say, dependent variable, expenditure on clothing, is varied as independent variable, sensitivity for vogue, changes. Female high school students are likely to give much value on brand. Moreover people who are spending more money on clothes have higher tendencies in prompt purchases than who are not. Thirdly, the analysis of clothing-purchasing-behavior and self-image shows that the difference between real self-image and ideal self-image draws the main reason of dissatisfaction after purchase of clothes. As a consequence, their unfilled needs lead them to keep making another purchase to satisfy themselves. Therefore, it is strongly recommended that parents' advices and directions on their children's money spending on clothes are imperative to establish well-behaved purchasing patterns.

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Retention Time Prediction form Molecular Structure of Sulfur Compounds by Gas Chromatography (기체크로마토그래피에서 황화합물의 구조를 통한 용리시간 예측)

  • Kim, Young Gu;Kim, Won Ho;Pak, Hyung Suk
    • Journal of the Korean Chemical Society
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    • v.42 no.6
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    • pp.646-651
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    • 1998
  • The molecular structure of sulfur compounds and the retention relationship are studied by gas chromatography. Analyzed sulfur compounds are, hydrogen sulfide, sulfur dioxide, carbon disulfide, ethyl mercaptan, dimethyl sulfide, iso-propyl mercaptan, normal propyl mercaptan, ethyl methyl sulfide, tert-butyl mercaptan, tetrahydrothiophene, thiophene, and 2-chlorothiophene. Multiple linear regression explains the retention relationship of molecular descriptors. In GC the temperature program is 30$^{\circ}C$ held for 10.5 min, and then increased to 150$^{\circ}C$ at a rate 15$^{\circ}C$/min. Predicted equation for relative retention time (RRT) using SAS program is as follows; $RRT=0.121bp+14.39dp-8.94dp^2+0.0741sqmw-35.78\; (N=8,\; R^2=0.989, \;Variance=0.175,\;F=66.21)$. RRTs are function of boiling point, the square root of molecular weight, molecular dipole moment, and boiling point effects mostly on RRT. The RRT is maximized at the molecular dipole moment of 0.805D, when using nonpolar columns. The planar and highly symmetric compounds are eluted slowly. The square, of correlation coefficient $(R^2)$ using SAS program, is 0.989, and the variance is 0.175 in training sets. For three sulfur compounds, the variance between observed RRTs and predicted RRTs is 0.432 in testing sets.

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The Influence of Autonomy, Competency, Relatedness on Burnout among Nurses (자율성, 유능감, 관계성이 간호사 소진에 미치는 영향)

  • Cho, Young-Mun
    • Journal of Digital Convergence
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    • v.12 no.6
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    • pp.491-500
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    • 2014
  • This study aimed to assess the influence of burnout with satisfaction of basic psychological needs among nurses. From oct, 25, 2013 to nov, 25, 2013, participants included 160 nurses from 6 major general hospital located in urban areas in Korea. Data for basic psychological needs and burnout were collected through a self-reported questionnaire and were analyzed with independent t-test and analysis of variance, Pearson's correlation analysis, and multiple linear regression analysis. This study shows negative correlations between burnout and autonomy(r=-.45, P<.001), competency(r=-.52, P<.001), relatedness(r=-.49, P<.001). The variables predicting burnout were autonomy(${\beta}=-.26$), competency(${\beta}=-.30$), relatedness(${\beta}=-.12$), age(${\beta}=-.17$), number of service years(${\beta}=.09$). These variables accounted for 34.3% of the variance of burnout in nurses. Our results indicated that it is necessary to increase basic psycological needs to decrease burnout. Therefore nursing managers should develop programs in order to increase autonomy, relatedness and competency.

The Converging Effects of Complete Science Subjects in High School on the Grades of Basic Nursing Sciences and Major Nursing Subjects of Nursing Students of one University (고등학교 과학과목 이수가 일 대학 간호학생의 기초간호과학 및 전공간호학성적에 미치는 융합적 효과)

  • Jung, In-Sook
    • Journal of the Korea Convergence Society
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    • v.7 no.5
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    • pp.97-106
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    • 2016
  • This study is to find the converging effects of the Complete Sciences Subjects(CSS) in high school before entrance to University on the scores of Basic Nursing Sciences(BNS) and Major Nursing Subjects(MNS) of 111 senior nursing students of one university. Using the SPSS 19.0, t-test, Pearson's correlation coefficient, multiple and simple linear regression were carried out. The mean scores of the groups that have completed the subjects of Biology I & II, Chemistry I & II were high on Anatomy, Physiology and Pathology. There was a significant difference between the group of completed Biology II and incompleted Biology II on the mean scores of MNS(p<.05). There were positive correlations between the CSS and the scores of BNS and MNS, a moderate correlation between Chemistry II and BNS(r=.303) and a strong correlation between BNS and MNS(r=.796). Explanation rate of CSS on the scores of BNS, and MNS were 18.2%, 8.2% respectively, and on the scores of BNS on MNS was 63.8%. The result of this study can be used in assessing university entrance procedure after repeated study, extended location and more participants, and to use for making pre-school program for the freshmen who didn't CSS.

Factors Influencing Subjective Well-Being of Immigrant Wives (이주여성의 주관적 안녕감에 영향을 미치는 요인)

  • Park, Hyeon-Woo;Kim, You-Young;Nam, Hyeon-Woo
    • Journal of Agricultural Extension & Community Development
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    • v.20 no.2
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    • pp.451-484
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    • 2013
  • This study investigated the factors that influence subjective well-being of immigrant wives in Korea. We initially grouped the factors into 3 categories: personal, domestic, and social. For personal factors, we included couple's age difference, reason for entry, religion, marital duration, employment status, economical status, acculturation to Korean culture, acquisition of Korean language, and ego-resiliency. For domestic factors we included marriage process, reason for marriage, husbands' understanding of wife's native language, husbands' understanding of wife's culture, marital satisfaction, existence of children, head of the household, and parenting efficacy. Finally for social factors, awareness of welfare services and systems, use of public institutions and civil organizations, and participation in social groups were included. We recruited 256 immigrant wives who live in Asan City, Chungnam Province and the data were analyzed by multiple linear regression. The factors that statistically significant were: ego-resiliency, marital duration, acculturation to Korean culture and economic status among personal factors; parenting efficacy, marital satisfaction and marriage process (married without a matchmaker) among domestic factors; participation in self-help group of women from the same mother country, awareness of welfare services and systems, participation in hobby club, and participation in fraternal/religious society among social factors. It is hoped that this paper will yield general insights into subjective well-being of immigrant wives and may help them to develop inner talent and strength.

Analysis of the Factors and the Differences in the Awareness about the Capability Groups of the Mediator Manager in General Hospital and the Level of Performance (종합병원 중간관리자의 역량군별 중요도 인식과 수행수준 차이 및 요인분석)

  • Kim, Hee-Sook;Jo, Woo-Hyun;Kim, Young-Hoon;Kim, Tae-Hyun
    • Korea Journal of Hospital Management
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    • v.16 no.3
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    • pp.92-114
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    • 2011
  • The study has its purpose on providing basic resource to enforce the capability of the middle managers by examining the level of performance and the level of awareness about the capabilities of the managers and by understanding the significance of the difference and the reasons for the differences. The source of the study was 195 survey questionnaires that were carried out to the managers of the 9 general hospitals and the method of the analysis was the frequency analysis, analysis of the credibility, matching to sample T-test, independent sample T-test, dispersion analysis, correlation analysis, and multiple linear regression analysis using accumulated variables. The followings are the main result of the study. First, the difference between the level of awareness about the capabilities and the level of performance of the mediator managers in general hospitals had high capability in change management. The following orders were: competence in achievement and behavior, competence in management, competence in recognition, competence in influence, competence in individual effectiveness, and competence in personal relationship service. Second, as the result of the relation analysis in order to understand the correlation between awareness and performance of the mediator managers, everything had significant positive correlation. In the study about the level of importance, the cognitive capability and the management capability had the highest correlation with the correlation number of 0.88. In the study about the level of performance, the cognitive capability, individual capability, and the management capability had the highest correlation with the correlation variable number of 0.79. Third, as the result of studying the reason for the difference between the level of the awareness capability and the level of the performance, lack of the support recognition compensation in the organization level, inappropriate work environment, limit in the regulation were found as the highest reason in the order. As the result of the study, it was concluded that the creation of the efficient capability estimation model and the securement of the system that estimate the capability of the managers should be carried out in order to enforce the capability of the mediator managers in general hospitals.

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The Analysis of Brand Value and Market Share at the Largest Hospitals the Metropolitan Area (수도권 초대형병원의 브랜드 가치와 시장점유율 분석)

  • Kang, Han Seom;Park, So Youn;Kim, Hyo Jeong;Kim, Young Hoon
    • Korea Journal of Hospital Management
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    • v.23 no.1
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    • pp.41-50
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    • 2018
  • The purpose of this research is to evaluate Brand Value by using the K-BPI(Korea Brand Power Index) of Korea Management Association which is based on consumer awareness, as well as to identify how Brand Value which is composed of top of awareness, unaided awareness, aided awareness, image, possibility of purchasing, preference, affects on the Market Share perceived by consumers. This research subjects were 10 hospitals with more than 1,000 beds in Seoul and Gyeonggi-do, and survey subjects were 20 or older adults living in the metropolitan area of Korea. Using K-BPI for measuring Brand Value and used calculation of Market Share according to consumer preference model for measuring Market Share. The major results of this research are as follows: First, this research identified that the top 5 hospitals of largest hospitals in metropolitan area measured by using K-BPI and Market Share were same hospitals as Big 4 hospitals of previous research evaluating the comprehensive competitiveness of hospitals and also same as hospitals that appeared recently. Second, Big 5 hospitals ranked first to fifth in both Brand Value and Market Share. To identify the relationship between K-BPI items(top of awareness, unaided awareness, aided awareness, image, availability, preference) and Market Share, multiple linear regression was used by dividing 5 upper and 5 lower group of hospitals per each. The group of 5 upper hospitals had a significant effect on Market Share, with 'top of awareness', 'unaided awareness', 'aided awareness'. The group of 5 lower hospitals had a significant effect on Market Share with 'unaided awareness', 'aided awareness'. The results of this study and hospitals of the first to third hospitals published in the K-BPI press release reported by KMAC in 2017, and the previous studies evaluating the comprehensive competitiveness hospitals, all had one thing in common that Big 4 hospitals ranked high position. This suggests that evaluation of Brand Value also can be a evaluation measure of hospital. A new competitiveness of hospital is expected by managing brand awareness to have a brand competitiveness and by securing intrinsic Market Share of consumer to reach hospital use ultimately.

A Study on the Application of the Korean Valuation Weights for EuroQoL-5 Dimension (EuroQoL-5 Dimension 한국 가중치 모형의 적용 연구)

  • Lee, Young-Hoon;Choi, Jin-Su;Rhee, Jung-Ae;Ryu, So-Yeon;Shin, Min-Ho;Kim, Jin-Hee
    • Korean Journal of Health Education and Promotion
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    • v.26 no.1
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    • pp.1-13
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    • 2009
  • Objectives: This study was conducted to estimate the health-related quality of life (HRQOL) using EuroQoL-5 Dimension (EQ-5D) and to identify its related factors among urban-dwelling adults. Methods: The data for this study were obtained from 1,134 subjects aged $20\sim91$, who participated in 'Survey on the health status and demand for health' in two cities of Korea (Dong-gu, Gwangju and Suncheon-si, Jeollanamdo). The HRQOL was measured using the EQ-5D instrument and EQ-5D index scores were calculated by two Korean valuation study model using time trade-off method. Results: The mean EQ-5D index scores for all subjects were $0.865{\pm}0.218$ (model A), and $0.921{\pm}0.170$ (model B). The EQ-5D index score was significantly different according to demographic and socioeconomic characteristics (gender, age, marital status, education, occupation, income, and health security system), self-rated health condition, health-related psychological assessments (enough sleep, fatigue rate, stress rate, and degree of satisfaction on the residence). The results of multiple linear regression showed that age, marital status, income, coverage of medical insurance, self-rated health condition, and fatigue rate were significantly related common statistical factors of HRQOL in two Korean valuation study model. Conclusion: Among the adults residing in urban environment, the HRQOL was significantly lower on the subjects with following conditions: higher age, being alone without a spouse as a result of death, divorce or separation, low income, medical aid program, poor self-rated health condition, and chronic fatigue. In order to improve the urban adults' quality of life, healthcare policy and health promotion program must be developed with considerations to factors related to the HRQOL.