• Title/Summary/Keyword: test statistics

Search Result 6,522, Processing Time 0.033 seconds

A Structural Equation Model on Quality of Life in Hemodialysis Patients (혈액투석환자의 삶의 질 구조모형)

  • Kang, Seung-Ja;Seo, Nam-Sook
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.20 no.7
    • /
    • pp.589-598
    • /
    • 2019
  • This study was conducted to build a structural equation model explaining factors that affect hemodialysis patients' quality of life to test the goodness of fit of the model and identify directly and indirectly significant paths. To accomplish this, 230 patients receiving hemodialysis registered at study hospitals in G Metropolitan City and M City were randomly selected, and 201 were used in the final analysis. Data were collected using a self reporting questionnaire from February 1 to March 31, 2014. SPSS WIN 18.0 was used for descriptive statistics and correlation analysis of the general characteristics and for reliability analysis of the research tools. In addition, AMOS 18.0 was used for confirmatory factor analysis of latent variables, to determine the goodness of fit of the hypothetic model, and hypotheses testing. The results of this study were as follows: the fit of the modified model was 41.32, GFI = .96, AGFI = .92, RMR = .04, NFI = .96, CFI = .91 and TLI = .95. Twelve out of the 22 research hypotheses that were improved and improved were statistically significant. The results indicated that hemodialysis patients' quality of life was influenced directly by self-efficacy, depression, and self-care behavior, and indirectly by sleep disturbance, stress, fatigue, and family support. These variables explained 58.6% of the variation in quality of life. Overall, these findings suggest that nursing interventions for hemodialysis patients require strategies for managing patient depression and for increasing self-efficacy and self-care behavior to improve quality of life.

Factors Influencing on Attitude toward Homosexuality among Nursing Students: Focusing on Sexual Assertiveness and Sex Stereotypes (간호대학생의 동성애에 대한 태도 영향요인; 성적 자기주장과 성역할 고정관념 중심으로)

  • Park, Seo-A;Shin, Kyoung-Sook;Kim, Hye-Young
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.20 no.7
    • /
    • pp.68-77
    • /
    • 2019
  • The purpose of this study was to determine the relevance and different factors having an impact on sexual assertiveness and sex stereotypes for the attitude among nursing students toward homosexuality. A survey was conducted on 253 nursing students in D city using a self-report questionnaire. The data was collected from April 11 to April 20, 2019 and it was then analyzed by descriptive statistics, t-tests, ANOVA, Pearson's correlations and multiple regression using SPSS 22.0. The average of sexual assertiveness in the nursing students was $4.44{\pm}0.37$, and the average of sex stereotypes was $2.08{\pm}0.58$, and the average of attitude toward homosexuality was $2.75{\pm}0.37$. The attitude toward homosexuality according to the general characteristics differed among religions (F=13.32, p<.000), religious life (F=20.43, p<.000) and method of parenting (F=2.74, p<.044). There was a statistically significant negative correlation between sexual assertiveness and the attitude toward homosexuality (r=-0.13, p=.034). Also, there was a statistically significant positive correlation between sex stereotypes and the attitude toward homosexuality (r=0.24, p<.000). Religion, religious life and sex stereotypes were the influential factors. Models that included the variables explained 23.1% of the variance for the attitude toward homosexuality. Thus, it is necessary to create an interventional strategy related to nursing student' attitude towards homosexuality so as to develop a practical educational program for promoting healthy gender identity.

Association of vitamin E levels with metabolic syndrome, and metabolic syndrome components among adults (성인의 비타민E 수준에 따른 대사증후군 및 대사증후군 요인과의 연관성)

  • Kim, Taehui
    • Journal of Industrial Convergence
    • /
    • v.19 no.5
    • /
    • pp.69-77
    • /
    • 2021
  • This study identified vitamin E associated with metabolic syndrome and metabolic syndrome components among Korean adults aged over 19 years. Secondary data from the 2016-2018 Korean National Health and Nutrition Examination Survey were used for this study. Data from 6,425 were analyzed by logistic regression analysis using a complex sample procedure. As a result of logistic regression analysis, the odds ratio was increased in the group with high vitamin E levels compared to the group with normal vitamin E levels. There are metabolic syndrome (Adjusted Odds Ratio [AOR]: 1.889, 95% Confidence Interval [CI]: 1.550-2.303, p<.001), abdominal obesity (AOR: 1.444, CI: 1.205-1.730, p<.001), hyperglyceridemia(AOR: 3.182, CI: 2.641-3.835, p<.001), systolic blood pressure (AOR: 1.711, CI: 1.446-2.026, p<.001), diastolic blood pressure (AOR: 1.806, CI: 1.521-2.144, p<.001), low high density lipoprotein cholesterol (AOR: 1.558, CI: 1.060-2.290, p=.024). Therefore vitamin E was associated with metaboic syndrome and metabolic syndrome components. So when providing nursing intervention for people with metabolic syndrome, education on vitamin E should be actively included.

Detection and Identification of Moving Objects at Busy Traffic Road based on YOLO v4 (YOLO v4 기반 혼잡도로에서의 움직이는 물체 검출 및 식별)

  • Li, Qiutan;Ding, Xilong;Wang, Xufei;Chen, Le;Son, Jinku;Song, Jeong-Young
    • The Journal of the Institute of Internet, Broadcasting and Communication
    • /
    • v.21 no.1
    • /
    • pp.141-148
    • /
    • 2021
  • In some intersections or busy traffic roads, there are more pedestrians in a specific period of time, and there are many traffic accidents caused by road congestion. Especially at the intersection where there are schools nearby, it is particularly important to protect the traffic safety of students in busy hours. In the past, when designing traffic lights, the safety of pedestrians was seldom taken into account, and the identification of motor vehicles and traffic optimization were mostly studied. How to keep the road smooth as far as possible under the premise of ensuring the safety of pedestrians, especially students, will be the key research direction of this paper. This paper will focus on person, motorcycle, bicycle, car and bus recognition research. Through investigation and comparison, this paper proposes to use YOLO v4 network to identify the location and quantity of objects. YOLO v4 has the characteristics of strong ability of small target recognition, high precision and fast processing speed, and sets the data acquisition object to train and test the image set. Using the statistics of the accuracy rate, error rate and omission rate of the target in the video, the network trained in this paper can accurately and effectively identify persons, motorcycles, bicycles, cars and buses in the moving images.

The effect of agarwood inhalation using an electric incense burner on stress and brain waves (전기향로를 이용한 침향 흡입이 스트레스와 뇌파에 미치는 영향)

  • Park, Hyun-Duck;Weon, Hee Wook
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.22 no.3
    • /
    • pp.536-545
    • /
    • 2021
  • This study was conducted to investigate the effect of agarwood (Thymelaeaceae) inhalation using an electric incense burner on stress and brain waves. Sixteen participants were included in the study during the period from September 2019 to April 2020. Participant recruitment was undertaken by the 'H' center. This paper focused on stress reduction and compared the differences in stress and brain waves before and after agarwood inhalation using an electric incense burner. Electroencephalography was measured by a 19 Channel, Brainmaster Discovery, and analyzed using a NeuroGuide, LORETA (Brain Mapping). The analysis of technical statistics was carried out using SPSS/WIN 21.0 and the Wilcoxon signed-rank test. The study observed that the stress response index was reduced by a significance level of 0.01 in patients with anxiety, depression, and somatization disorders after agarwood inhalation. Secondly, alpha waves were increased by a significance level of 0.05, in 18 out of 19 regions measured, except FP 1. The difference after agarwood inhalation was the most significant in the region that affects emotion. Thirdly, a LORETA analysis found that alpha waves were increased in the brain region (BA 40) predominantly responsible for memory and emotion. This result clarifies that agarwood inhalation using an electric incense burner reduced stress and had a positive effect on brain waves and hence, has potential as an alternative therapy.

A Pilot Study to Evaluate the Reliability of a Pattern Identification Tool for Benign Prostatic Hyperplasia and to Analyze Correlations between Pattern Identification Tools and International Prostate Symptom Score (IPSS) and Uroflowmetry (전립선비대증 변증도구의 신뢰도 평가 및 IPSS, 요속과의 상관관계에 대한 탐색적 연구)

  • Jeon, Cheon-hoo;Gu, Ji-hyang;Kang, Wee-chang;Jang, Eun-su;Lee, Eun-jung;Jung, In-chul;Cho, Chung-sik
    • The Journal of Internal Korean Medicine
    • /
    • v.41 no.6
    • /
    • pp.1052-1065
    • /
    • 2020
  • Objectives: To evaluate the reliability of a pattern identification tool for benign prostatic hyperplasia and to examine the relationship between pattern identification tool readings and IPSS and uroflowmetry. Methods: We analyzed 56 patients diagnosed with benign prostatic hyperplasia from December 27th, 2017 to December 26th, 2018 by two different Korean medical doctors and followed with a pattern identification tool and by IPSS and uroflowmetry. One week later, the patients were retested to analyze the reliability of the pattern identification tool, determined with the intraclass correlation coefficient (ICC) using the test-retest method. The correlation between IPSS and uroflowmetry was analyzed with the Pearson coefficient. Result: The reliability of the pattern identification tool for benign prostatic hyperplasia was evaluated as "poor agreement beyond chance" (ICC=0.349). The reliability of each pattern identification score was evaluated as "good" for Yang Deficiency of Kidney, Yin Deficiency of Kidney, Deficiency of Middle Qi, and Dampness-heat of Lower Energizer. The internal consistency was evaluated as "good" for Yang Deficiency of Kidney, Yin Deficiency of Kidney, and Dampness-heat of Lower Energizer, and as "excellent" for Deficiency of Middle Qi. The correlation between pattern identification and IPSS was evaluated as a "moderate positive correlation" for all pattern identifications. The average flow rate and maximum flow rate using uroflowmetry was evaluated with "moderate negative correlation" for Yang Deficiency of Kidney and Dampness-heat of Lower Energizer. Conclusion: The reliability of a pattern identification tool for benign prostatic hyperplasia was evaluated as "poor agreement beyond chance." Further research is needed.

Changes of Postprandial Blood Pressure of Elderly in Nursing Homes by Position (시설 거주 노인의 식사 후 체위에 따른 혈압의 변화양상)

  • Son, Jung Tae;Lee, Eunjoo;Park, Ji Hyun
    • 한국노년학
    • /
    • v.32 no.3
    • /
    • pp.689-701
    • /
    • 2012
  • The purposes of this study were to identify the changes of postprandial blood pressure and pulse rates of elderly living in nursing homes by time and position after a meal. Blood pressure and pulse rates of 141 elderly aged over 65 years were measured at before the meal to 90 minutes after the meal by 15 min. interval. Data were analyzed by descriptive statistics, repeated measures of ANOVA, ANCOVA, and t-test using the SPSS program. There were no significant differences in change of systolic blood pressure and pulse rates by time between sitting group and lying group after meal. The biggest drops in systolic pressure in sitting and lying position were occurred at 30 min and 45min respectively after the meal. There were no significant change in pulse rates except for the immediately after meal in lying position. To prevent complications of postprandial blood pressure reduction, nurses should carefully monitor blood pressure of elderly in lying position at least from 30 min. till to 90 min. after the meal.

Study on the relevance of dietary behavior and oral management by periodontal assessment and survey (치주검사와 설문조사를 통한 성인의 구강건강관리행태 및 식이행태와 치주질환과의 관련성)

  • Moon, Sang-Eun;Hong, Sun-Hwa;Kim, Hui-Jeong;Seo, Ga-hye;Park, Jin-Ah;Lee, Ji-Yeon;Jeong, Ju-Yeong;Choi, Jong-Im;Park, Seon-Mi;Park, Jin-A;Han, In-Hwa
    • Journal of Korean society of Dental Hygiene
    • /
    • v.20 no.6
    • /
    • pp.949-961
    • /
    • 2020
  • Objectives: This study investigated the relevance of dietary behavior and oral management for oral heath in adults to extend the recognition of the importance of food intake in oral health and to provide basic information for oral health management. Methods: A survey and clinical assessment were conducted for 119 adults over 20 years of age. The chi-square test and logistic regression analysis were carried out using SPSS Statistics 20.0. Results: Gingivitis was influenced less when ham and sausage in the sub-area of meat, fish, egg, and bean were consumed once a week rather than the cases when consumed rarely (3.47 times) or when consumed two times or more a week (7.87 times) (p<0.05). Periodontitis was influenced more in the groups of 30s and 40s age than in that of over 50 years of age (14.97 times, 7.73 times) and in the group without drinking experience than in group with that (4.17 times) (p<0.05). Conclusions: The results verified the close relationship between food intake frequency and oral health in patients with periodontitis and gingivitis. Thus, it would be necessary to study the relationship between dietary behavior and oral health continuously.

A Comparison Study of Individual Entrepreneurial Orientation: Among Korean, Chinese and Japanese University Students (한국·중국·일본 대학생의 기업가지향성 비교연구)

  • Yang, Jun-Hwan
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
    • /
    • v.16 no.3
    • /
    • pp.31-41
    • /
    • 2021
  • This exploratory study focuses on ascertaining the cross-cultural differences in the perception of entrepreneurial orientation among university students in Korea, China, and Japan. Total 670 university students from the three culturally diverse environments were administered questionnaires designed to determine the differences in individual entrepreneurship orientation(IEO). Data was analyzed using IBM SPSS Statistics 23 version. ANOVA was used to test the established hypotheses. Statistically significant differences were found among the three groups of university students in IEO. China displayed the highest level of IEO followed by Korea and then Japan. Japan is less likely to be committed to entrepreneurial activity than Korea and China. The finding implies the sociocultural effect may come into play when young people forms positive attitude on entrepreneurship, that is identical to the arguments of prior studies. This study, however, has contributed to the literature by adding empirical evidence first time on different perceptions of IEO sub-scales by Korean, Chinese and Japanese university students. Theoretical and practical implication have been presented, where the importance of nurturing pro-activeness was stressed for Korean university students, most of all.

A Study of Health Literacy, Self-Management Knowledge, and Self-Care Behaviors in Elderly with Hemodialysis (혈액투석 노인의 건강문해력, 자가관리지식과 자가간호행위에 관한 연구)

  • Yu, Hye Seon;Lee, Young Whee;Kim, Hwasoon
    • The Journal of the Korea Contents Association
    • /
    • v.21 no.6
    • /
    • pp.609-619
    • /
    • 2021
  • The purpose of this study was not only to identify the level of health literacy, self-management knowledge and self-care behavior, but also to identify the relations those variables in elders with hemodialysis. The subjects of this study are 193 patients from dialysis clinics of nine hospitals in Incheon who aging over 60 years old. Data collection was conducted by using Health Literacy Scale, Self-Management Knowledge Scale, and Self-Care Behavior Scale. The data were analysed by descriptive analysis, t-test, ANOVA, and Pearson correlation coefficient using SPSS statistics 23.0 program. In the results, average score of subjects' health literacy, self-management knowledge and self-care behavior were 13.66(±2.09), 13.33(±1.85) and 63.95(±10.32), respectively. There were significant positive correlation between self-management knowledge and health literacy (r=0.37, p<.001) and reading comprehension part which is subscale in health literacy (r=.25, p=.001). Also, there was significant positive correlation between self-management knowledge and self-care behavior (r=0.15, p<.05). According to the above results, for improving the self-care behaviors in elders with hemodialysis, it is necessary to provide tailored education based on his/her level of health literacy.