• Title/Summary/Keyword: Multiple-group analysis

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Usefulness of Abdominal Fat Measured by Computed Tomography and Bioelectric Impedance Analysis as an Obesity Index (컴퓨터단층촬영과 생체전기 저항 분석법으로 측정된 복부지방의 비만지표로서의 유용성)

  • Kim, Mi-Young;Kim, Hwa-Sun
    • The Journal of the Korea Contents Association
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    • v.11 no.12
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    • pp.807-813
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    • 2011
  • For obesity management requires accurate measurement of abdominal fat. The purpose of this study was to find out the correlation between abdominal fat and lipid measured with BIA and CT. Secondly, This study investigate for usefulness of abdominal fat measured by BIA and CT as an obesity index. As a result, TG showed higher value in the overweight obese group than normal group but HDL showed lower value in the overweight obese group than normal group. TG and HDL appeared significantly relationship with by BIA and CT in the normal group. However, in the overweight obese group TG showed significantly relationship with the BIA. According to multiple regression analysis on BMF and TAF was affected by HDL in the normal group. And BMF, %BF was affected by TG in overweight obese group. In conclusion, abdominal fat showed significant correlation with lipid. Abdominal fat measured by BIA and CT to assess obesity index is considered as a useful way to evaluate.

Effects of Perceived Stress on State Hope in Patients with Depression : Differences of Cognitive Emotional Regulation (우울장애에서 지각된 스트레스 정도가 희망감에 미치는 영향 : 인지적 정서조절 전략 차이)

  • Lee, Na-Bin;Min, Jung-Ah;Chae, Jeong-Ho
    • Mood & Emotion
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    • v.9 no.2
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    • pp.78-86
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    • 2011
  • Objectives : The aim of this study was to investigate relationship between perceived stress level, cognitive emotion regulation (CER) strategy and hope in group with high depressive symptom and higher-level perceived stress (H-H) and group with high depressive symptom and lower-level perceived stress (H-L) in patients with depression. Method : A total of 85 patients (over score of 16 by Beck depression Inventory; BDI) were surveyed with Cognitive emotion regulation questionnaire (CERQ), Perceived stress scale (PSS), and The state hope scale (SHS). Mean scores of CERQ and SHS were compared between relatively higher perceived stress and lower perceived stress groups. Correlation analysis and multiple linear regression analyses were performed to identify the effect of BDI, PSS and CER strategy on SHS in two groups. Results : In ANOVA, the level of hope and maladaptive CERQ score proved to be significantly lower among the H-H group than among the H-L group, while adaptive CERQ scores were not. In Regression analysis, the effective CER strategy in SHS were 'Refocus on planning' in H-H group, while it was 'Acceptance' CER strategy in H-L group. The final regression model explained 36% of the variance of SHS in H-H group and explained 21% of SHS in H-L group. Conclusion : These findings suggest that 'Refocus on planning' and 'Acceptance' cognitive emotion strategy are helpful in promotion of state hope on depression. Especially, 'Refocus on planning' strategy is more effective in high depressive symptom and high-perceived stress level, while 'Acceptance' strategy help to promote hope in high depressive symptom and low-perceived stress level in patients with depression.

The study of the relationship among perceived risk of apparel purchase, control, and impulse buying - Focusing on internet shopping mall consumers - (의류구매위험지각, 통제, 충동구매 간의 관계 연구 - 인터넷쇼핑몰 소비자를 중심으로 -)

  • Chung, Mi Sil
    • Korean Journal of Human Ecology
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    • v.23 no.5
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    • pp.873-890
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    • 2014
  • The purpose of this study was to examine the relationship among consumer's perceived risk of apparel purchase in internet shopping mall, control, and impulse buying. The subjects were 319 female college students in Gyeongsang provinces. The obtained data were analyzed by reliability analysis, analysis of frequency, factor analysis, cluster analysis, one-way ANOVA, Duncan's multiple range test, correlation analysis, and t-test. The major results of this study were as follows: First, three factors of consumer's perceived risk of apparel purchase in internet shopping mall were identified: size risk, trust risk, and social/psychological risk. Second, the subjects were categorized into three different types of groups according to perceived risk: high perceived risk type, middle perceived risk type, and low perceived risk type. Third, three control(self-control, goal-control, and desire for control) and three impulse buying(impulsive buying for showing off, impulsive buying for excitement, and impulsive buying due to memory) were identified. Fourth, there was significant difference between strong control group and weak control group on three factors of impulse buying. Fifth, a significant positive correlation was found size risk and three factors of control and a significant negative correlation was found self-control and three factors of impulse buying.

Precariousness and Happiness of South Korean Young Adults: The Mediating Effects of Uncertainty and Disempowerment (한국 청년의 삶의 불안정성(precariousness)과 행복: 불확실성과 통제권한 부재의 매개효과)

  • Han, Seungheon;Yim, Dahye;Kang, Minah
    • 한국사회정책
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    • v.24 no.2
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    • pp.87-126
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    • 2017
  • This study aims to examine the level of precariousness among young adults in South Korea and analyze the factors affecting their subjective well-being by adopting the three forms of precariousness suggested by Rodgers(1989) such as lack of resource, uncertainty and disempowerment as its analytical framework. Structural Equation Model was used for analyzing the path model of self-rated health, income level and social support(three forms of resource) affecting subjective wellbeing through uncertainty and disempowerment. Study population include young adults aged between 19 to 34 with a sample size of 415 using data of the 8th wave of the Korean General Social Survey(KGSS), 2010. Study population is divided into lower-age group (aged between 19-26) and upper-age group (aged between 27-34) in order to examine the differences between age groups by using Multiple Group Analysis. Study results show that three forms of resources, uncertainty and disempowerment had direct effect on the subjective well-being of South Korean young adults and disempowerment had the most significant effect among the factors. In addition, self-rated health and income level had indirect effect on subjective well-being through both uncertainty and disempowerment while social support had indirect effect on subjective well-being only through disempowerment. Results from the Multiple Group Analysis indicate that among the two age groups, income level only has a significant effect on subjective well-being in the upper-age group. In addition, disempowerment had greater effect on subjective wellbeing among upper-age group than the lower-age group. Based on the study results, this paper suggested policy implications and discussion for further research.

Relationship between usage of removable denture and depression in Korean adults with loss of multiple teeth: A cross-sectional study using the seventh Korea National Health and Nutrition Examination Survey (다수 치아를 상실한 한국 성인에서 가철성 의치의 장착 여부와 우울증의 연관성: 국민건강영양조사 제 7기 자료를 활용한 단면 연구)

  • Shim, Jaeseung;Lee, Younghoo;Hong, Seoung-Jin;Noh, Kwantae;Pae, Ahran;Kim, Hyeong-Seob;Kwon, Kung-Rock;Paek, Janghyun
    • The Journal of Korean Academy of Prosthodontics
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    • v.59 no.1
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    • pp.1-10
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    • 2021
  • Purpose: The purpose of this study is to evaluate the relationship between removable denture and depression. This study aims to investigate the relationship between depression and each group by dividing them into a group that were using removable dentures and a group that needed removable dentures but were not using removable dentures. Materials and methods: This study was conducted using raw data from the 7th Korea National Health and Nutrition Examination Survey (KNHNES). By using variables related to the state of the prosthesis and the need for prosthesis among oral examination data, the oral examination data were classified into two groups; group using removable denture and group in need of removable dentures. In addition, the variables of depression were classified into normal (0-4), mild depression (5-9), moderate depression (10-19), and severe depression (20-27) using the values of PHQ-9. For statistical analysis, logistic regression analysis was performed using SAS 9.4. Results: In the group in need of removable dentures, the risk of severe depression was statistically and significantly higher than the group using removable dentures. Conclusion: In patient who have lost multiple teeth, rehabilitation of the missing area with removable dental prosthesis is expected to decrease the occurrence of severe depression.

Change in the Alignment and Distal Junctional Kyphosis Development after Posterior Cervical Spinal Fusion Surgery for Cervical Spondylotic Myelopathy - Risk Factor Analysis

  • Lee, Jung Jae;Park, Jin Hoon;Oh, Young Gyu;Shin, Hong Kyung;Park, Byong Gon
    • Journal of Korean Neurosurgical Society
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    • v.65 no.4
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    • pp.549-557
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    • 2022
  • Objective : This study analyzed the risk factors in patients who developed distal junctional kyphosis (DJK) after posterior cervical fusion. Methods : We retrospectively analyzed the clinical and radiographic outcomes of 64 patients, aged ≥18 years (51 and 13 male and female patients, respectively), who underwent single-staged multilevel (3-6 levels) posterior cervical fusion surgery due to multiple cervical spondylotic myelopathy. The surgeries were performed by a single spinal surgeon between January 2012 and December 2017. Demographic data, clinical outcomes, and radiological results were collected. We divided the patients into a DJK group and a non-DJK group according to the presence of DJK and investigated the risk factors by comparing the differences between the two groups. Results : Of the 64 patients, 13 developed DJK. No significant differences in clinical results were observed between the two groups before and immediately after the surgery. At the final follow-up, a higher visual analog score for neck pain was observed in the DJK group compared to the non-DJK group (p<0.01). The DJK group had a significantly lower T1 slope and a significantly higher C2-7 sagittal vertical axis (SVA) before surgery compared to the non-DJK group (p=0.03 and p<0.01, respectively). Immediately after surgery, the difference between the two groups decreased and no significant difference was observed. However, at the last follow-up, a significantly higher C2-7 SVA was observed in the DJK group (p<0.01). At the last follow up, there is no discrepancy in T1S-CL. In multiple logistic regression analysis, preoperative higher C2-7 SVA and preoperative lower T1 slope were identified as independent risk factors (p=0.03 and p<0.01, respectively). As a result, it was confirmed that DJK occurred along the process of returning to preoperative values. Conclusion : DJK can be considered to be caused by cervical misalignment due to excessive change in the surgical site in patients with low T1 slope and high C2-7 SVA before surgery. This also affects the clinical outcome after surgery. It is recommended to refrain from excessive segmental lordosis changes during multilevel cervical post fusion surgery, especially in patients with a small preoperative T1 slope and a large SVA value.

Classification of Shear Strength according to Breccia Content in Fault Core (단층각력 함량에 따른 전단강도의 분류)

  • Yun, Hyun-Seok;Moon, Seong-Woo;Seo, Yong-Seok
    • Economic and Environmental Geology
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    • v.53 no.2
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    • pp.167-181
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    • 2020
  • Analysis of variance (ANOVA) and multiple comparison analysis were performed for shear strengths categorized by breccia content of 5 wt.% (Case-I), 10 wt.%, (Case-II) and 15 wt.% (Case-III) in fault cores. The relationship between breccia contetnt and shear strength was quantitatively classified by calculating the mean and standard deviation of shear strength for each population in each case and then the grouping the breccia contents that had a statistically similar effect on the dispersion of shear strength. As a result, shear strength was clearly classified into group 1 (breccia content of 0-15 wt.%) and group 2 and 3 (breccia coantent of 15-30 wt.% and 30 wt.% or more) in Case-III. Shear strength of the standard line at breccia content of 15 wt.% were determined to be 43.6 kPa, 77.6 kPa, and 118.6 kPa at each normal stress (54 kPa, 108 kPa, and 162 kPa), respectively. In addition, the distribution range of cohesions is 0-43.6 kPa at breccia content of 15 wt.% or less, and 0-70.0 kPa at 15 wt.% or more. Distribution range of friction angles is 0-45.7 ° at breccia content of 15 wt.% or less, and 16.7-57.5 ° at 15 wt.% or more.

The Effects of Related Factors on Quality of Life for the Elderly (노인의 삶의 질 관련요인 분석)

  • Kang, Lee-Ju
    • Journal of Families and Better Life
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    • v.26 no.5
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    • pp.129-142
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    • 2008
  • This study examines how economic and psychological characteristics affect the quality of life (QoL) of elderly individuals age 60 and older, who live in the Seoul-metropolitan area. Relationships among socio-demographic status, economic conditions, psychological characteristics, family life, health status, and QoL are examined by t-test and ANOVA(Duncan's test as post hoc multiple comparisons), and the multiple regression analysis is used to estimate QoL determinants in the elderly. The major findings of the study are as follows. First, younger age, higher education levels, better health status, harmonious family relations, higher levels of household income, lower levels of loneliness, and higher self-esteems are related to higher QoL levels. Second, the impacts of factors on QoL are differentiated according to tercile groups that divide monthly allowance of respondents into three categories: below normal (threshold amount below 21MW), near normal (threshold amount between 21MW and 35MW), and above normal (threshold amount above 35MW). For each tercile group, poor health status or higher loneliness have negative effects on QoL, while harmonious family relationship has a positive effect. For the below-normal group, years of education or self-esteem have positive effects, while age or retirement status have negative effects when controlling for other factors. For the near-normal group, being married, or perceived financial insecurity create lower QoL levels, while higher self-esteem increases QoL levels. For the above-normal group, being widowed, employed, or retired have positive effects on QoL, when controlling for other variables. Third, even among elderly with high allowances, the effects of health status and family relationship are significant determinants that explain QoL levels. This result suggests that, for te elderly, poor health status and poor family relationships severely decrease QoL in later life, regardless of economic condition.

The Influence of Exercise Intention, Exercise Habits, and Exercise Self-efficacy on Regular Exercise Behaviors in the Elderly (노인의 운동의도, 운동습관, 운동자기효능감이 규칙적 운동행위에 미치는 영향)

  • Nam, Song Mi;Eun, Young
    • Journal of muscle and joint health
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    • v.26 no.3
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    • pp.232-240
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    • 2019
  • Purpose: The purpose of this study was to investigate the effects of exercise intention, exercise habit, exercise self-efficacy on exercise behavior with elders at welfare center. Methods: The subjects were 152 elders at the welfare center at J city. Data were collected using the questionnaires which consisted of the Exercise intention scale and the Exercise habit scale developed by Lee and Gu (2018), and the Exercise self-efficacy scale developed by Lee and Chang (2001). The collected data were analyzed with the SPSS/WIN 22.0 program, which was used for frequency, percentage, mean, standard deviation, x2 test, and multiple logistic regression. Results: The regular exercise group consisted of 92 elders (62.5%) and the irregular exercise group of 60 elders (39.5%). The scores for exercise intention, exercise habits, exercise self-efficacy were 3.28±0.70, 3.92±0.61, 2.80±0.88 in regular exercise group, and 2.38±0.99, 3.00±1.07, 2.04±0.73 in irregular exercise group, respectively. Two groups were significantly different between the two groups. Multiple logistic regression analysis showed that exercise intention (OR: 2.26, 95% CI:1.19~4.28), exercise habits (OR: 1.79, 95% CI:1.01~3.15), exercise self-efficacy (OR: 1.99, 95% CI:1.11~3.57) were affecting factors for regular exercise in elders. Conclusion: To increase the regular exercise behaviors of the elderly at the welfare center, it is needed the strategies to increase exercise intention, exercise self-efficacy, and exercise habits.

Factors Affecting Eating Attitude of Female Undergraduates in Regard to BMI (여대생의 체질량지수군별 섭식태도에 영향을 미치는 관련 요인 분석)

  • Yom, Young-Hee;Lee, Kyu-Eun
    • Journal of Korean Academy of Nursing
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    • v.40 no.5
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    • pp.676-685
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    • 2010
  • Purpose: The purpose of this study was to examine the factors affecting eating attitude of female undergraduates according to BMI. Methods: A descriptive survey design with a convenience sampling was used and data collection was done using a self-report questionnaire answered by 406 female undergraduates from four universities located in Seoul, Kangwon, Gyeongsangbuk and Chungcheongnam Provinces. ANOVA, Pearson correlation coefficients, and hierarchial multiple regression were used the SPSS WIN 17.0 Program to analyze the data. Results: With respect to BMI, the students were found to be in 3 groups, whose differences in eating attitude were significant. Eating attitude had significant positive correlation with height (r=.118, p=.017), weight (r=.267, p<.000), BMI (r=.239, p<.001), and depression (r=.375, p<.001), and negative correlation with subjective well-being (r=-.153, p=.002) and body esteem (r=-.287, p<.001). In the hierarchial multiple regression analysis, college major, height, weight and religion, were controlled. Depression and body esteem regarding weight significantly predicted 40.7% of eating attitude for the underweight group and normal weight group, body esteem: weight and depression were significant predictors for 27.5% of eating attitude for the normal weight group. Body esteem: weight explained 32.6% of eating attitude for the overweight group. Conclusion: Findings of this study allow a comprehensive understanding of eating attitudes and related factors among female undergraduates in Korea. Further study with a larger random sample from various universities is necessary.