• Title/Summary/Keyword: Significance Level

Search Result 3,737, Processing Time 0.034 seconds

Dietary patterns associated with hypertension among Korean males

  • Kim, Young-Ok
    • Nutrition Research and Practice
    • /
    • v.3 no.2
    • /
    • pp.162-166
    • /
    • 2009
  • The objectives of this study were to identify the dietary patterns associated with hypertension among Korean males. Data from the 2001 Korean National Health and Nutrition Survey of 1,869 men aged 20-65 years were used for the analysis. As an initial analysis, a factor analysis was applied to identify major dietary patterns among the subjects. Then logistic regression analysis was conducted to identify the pattern related with hypertension. As a result of the initial analysis, three major dietary patterns were identified. Dietary pattern 1 (traditional) was heavily loaded with vegetables, fish and cereal. Dietary pattern 2 (Western) was loaded with fast foods, bread, meats and dairy products. Dietary pattern 3 (Drinker) was loaded with mostly pork, beer and soju (Korean liquor). From the second stage of the analysis, there was a tendency of positive association between traditional patterns and hypertension risks. However, the tendency did not meet statistical significance level (p<0.05). In summary, unlikely findings from European and American studies, vegetables rich traditional dietary patterns did not show any protective effect on hypertension in Korean males. The Korean dietary practice, which is consuming salted vegetables instead of fresh vegetables, might have played a role in these findings. However, the full explanation of the findings remained to be answered with further investigation since none of the dietary patterns identified showed any statistical significance.

A Study on the Wide Reach Nozzle of Sprayer (V) -The Long Range Nozzle- (휴반용 분무기의 Nozzle에 관한 연구(V) -원거리용 Nozzle-)

  • 옹장우;이상우
    • Magazine of the Korean Society of Agricultural Engineers
    • /
    • v.17 no.4
    • /
    • pp.3991-4000
    • /
    • 1975
  • It is the aim of this study to investigate the influence of the factors in the sprayer nozzle for the travelling distance and to get nozzle design data in relation to the nozz1e with and without swirl plate. The factors of sprayer nozzle are composed of the spraying pressure, the helical angle of swirl plate, the helical groove depth of swirl plate, the distance of vortex chamber the slope of nozz1e cap, the curvature of nozzle cap and the hole diameter of nozz1e cap. The travelling distance and the size of sprayed particle are experimeted indoors by the factorial arrange-ment according to the 5 each level of the above factors. The results of this stupy are summarized as follows; 1. In the nozzle with swirl p1ate there were remarkable significance among factors each other, while without swirl plate were no significance. 2. The helical angle and groove depth in the nozzle with swirl plate were the highest effective factors. The effect of helical angle was very remarked in the quadratic curve with minium value. 3. The correlation betweenthe travelling distance and the sprayed particle size was no high and under 250 micron in the case with swirl plate, and there was higher correlation in the case without swirl plate. 4. The new ideal development of the swirl plate using of the most effective helical angle and groove depth will probably show the possiblities to make effective travelling distance over 8 meters and more over and to make average particle diameter under 300 micron.

  • PDF

Effects of Website Characteristics and Delivery Service Quality on Repurchase Intention

  • Dai, Wenqian;Lee, Jong-Ho
    • The Journal of Industrial Distribution & Business
    • /
    • v.9 no.5
    • /
    • pp.17-24
    • /
    • 2018
  • Purpose - Through the analysis of the characteristics of overseas direct purchase websites and the relevant empirical analysis of the quality of service delivery, the activated theory/strategy and significance of the overseas direct purchase are sorted out. Research design, data, and methodology - In the process, to make more effective analysis, several analysis tools and analysis programmes are used, IBM SPSS Statistics 23.0 and IBM SPSS AMOS 23.0. Results - Among the characteristics of the overseas direct purchase website, the security, convenience and information provided by the overseas direct purchase have already had a positive impact on the satisfaction. The quality of the delivery service is composed of four factors: rapidity, reliability, intimacy and correctness. The research results indicate that the satisfaction level has a positive impact on the re-purchase intention. Conclusions - The significance of this study has the characteristics of overseas direct purchase sites which have confirmed that security convenience and intelligence availability have a positive impact on satisfaction and re-purchase intent. It is important to have a safe and reliable access to shopping sites on overseas direct purchase sites. In the characteristics of overseas direct purchase sites, the interaction have no positive effect on satisfaction and re-purchase intention.

An Exploratory Study on Visit Intention of Destination in Marine Health Tourism (해양의료관광지의 방문의도에 관한 탐색적 연구)

  • Kim, Mincheol;Boo, Chang-San
    • Journal of Fisheries and Marine Sciences Education
    • /
    • v.27 no.1
    • /
    • pp.230-242
    • /
    • 2015
  • The purpose of this study is to propose, firstly, the definition of marine health tourism and empirically to analyse the effect of benefit sought and brand equity on visit intention of destination as marine health tourism. This study utilizes the PLS-SEM method in order to measure the overall model fitness level and statistical significance of all paths in proposed research model. As a result of the analysis, benefit sought factor like nature has a highest positive effect on brand equity(image and perceived quality) and also, on visit intention via brand equity. Specially, this study measures the non-linear of all the paths and shows the statistical significance that the more high health factor as benefit sought is, the preference for quality brands is more steeply. In addition, the measurement of the moderating effect of gender variables shows that female is the most sensitive than male on the path from health benefit sought to brand quality among all the paths. However, the definition of marine health tourism in this study is proposed according to the characteristics of a particular area. In this vein, the definition is needed to generalize more through follow-up study.

A Study on the Effects of Accident Experience according to Middle School Students' Personality Type (중학생의 성격 유형이 사고 경험에 미치는 영향)

  • Kim, Soo-Jin;Lee, Myung-Sun
    • The Journal of Korean Society for School & Community Health Education
    • /
    • v.13 no.1
    • /
    • pp.65-75
    • /
    • 2012
  • Objectives: This study aims at grasping the socio-demographic variable, safety education experience, personality type and accident experience and analyzing if the personality type influences on the accident experience. Methods: For 330 third-year students at one middle school located at Gyeonggi-Do, questionnaire survey was performed on 16th, October, 2010. Excepting data of 19 students poor in contents, 311 students' data were analyzed. Results: The results of analysis are like followings. 1. As for relation between the socio-demographic variable and accident experience, it showed statistical significance in sex and how to go to school. And there was no statistical significance in parents' job, educational level of parents, residential type, school record and allowance. 2. As for relation between safety education experience and accident experience, safety education doing school than family lowered accident incidence outstandingly. When safety education frequency increased one time, possibility to experience accident decreased to 30%. 3. As for relation between 4 personality types of MBTI and accident experience, Thinking(T) experienced accident more than Feeling(F). Moreover, it showed difference in accident type and injuried degree. This results were statistically significant. As the result of analyzing the injuried degree by sex only in Thinking(T) and Feeling(F), female students had statistically significant difference. Conclusions: Health care providers should develop school safety programs by characteristics of personality.

  • PDF

FHIT Gene Expression in Acute Lymphoblastic Leukemia and its Clinical Significance

  • Malak, Camelia A Abdel;Elghanam, Doaa M;Elbossaty, Walaa Fikry
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.16 no.18
    • /
    • pp.8197-8201
    • /
    • 2016
  • Background: To investigate the expression of the fragile histidine triad (FHIT) gene in acute lymphoblastic leukemia and its clinical significance. Materials and Methods: The level of expressed FHIT mRNA in peripheral blood from 50 patients with acute lymphoblastic leukemia (ALL) and in 50 peripheral blood samples from healthy volunteers was measured via RT-PCR. Correlation analyses between FHIT gene expression and clinical characteristics (gender, age, white blood count, immunophenotype of acute lymphoblastic leukemia and percentage of blast cells) of the patients were performed. Results: The FHIT gene was expressed at $2.49{\pm}7.37$ of ALL patients against $14.4{\pm}17.9$ in the healthy volunteers. The difference in the expression levels between ALL patients and healthy volunteers was statistically significant. The rate of gene expression did not significantly vary with immunophenotype subtypes. Gene expression was also found to be correlated with increase of total leukocyte and decrease in platelets, but not with age, gender, immunophenotyping or percentage of blast cells. Conclusions: FHIT gene expression is low in acute lymphoblastic leukemia and could be a useful marker to monitor minimal residual disease. This gene is also a candidate target for the immunotherapy of acute lymphoblastic leukemia.

Effects of 6-Week Self-Scapular Upward Rotation Exercise on Downward Pulling Tension in Subjects With Scapular Downward Rotation Syndrome

  • Ha, Sung-Min;Kwon, Oh-Yun;Park, Kyue-Nam
    • Physical Therapy Korea
    • /
    • v.19 no.4
    • /
    • pp.32-37
    • /
    • 2012
  • The purpose of this study was to investigate the quantitative data of downward pulling tension in subjects with scapular downward rotation syndrome (SDRS) before and after 6-week self scapular upward rotation exercise (SURE) program. Eleven subjects with bilateral SDRS. The downward pulling tension(DPT) was measured digital tension-meter. The tension force data were collected using a surface electromyography before and after a 6-week self-scapular SURE program. The significance of difference between pre- and post-program was assessed using a paired t-test, with the level of significance set at ${\alpha}$=.05. The results showed that significant differences between pre- and post-SURE program were found for DPT (p<.05). These findings suggest that 6-week self SURE program is effective for reducing DPT in subjects with SDRS. Additionally, our DPT measurement can be useful for maintaining shoulder position and providing quantitative data between pre- and post-SURE program during passive correction of scapular position test.

A Comparative Study on Health-Promoting Behavior, Life Satisfaction and Self-esteem of the Young and Old Old (노년전기와 후기 노인의 건강증진행위, 생활만족도 및 자아존중감의 차이)

  • Choi, Yeon-Hee
    • Research in Community and Public Health Nursing
    • /
    • v.12 no.2
    • /
    • pp.428-436
    • /
    • 2001
  • Purpose: To compare the differences of health-promoting behavior. life satisfaction and self-esteem between the young old and the old old. Method: The subjects were a volunteer sample of 200 elderly in K city. The instruments for this study were Health Promoting Lifestyle Profile (47 items). Life Satisfaction Scale(20 items) and Self-Esteem Scale(10 items). Frequency, percentage, t-test and Pearson's correlation coefficient with SAS program were used to analyze the data. Result: 1) There was a statistical significance(t=2.479. p<05) in health-promoting behavior between the young old and the old old which showed, on an average. 3.306 points in the young old and 2.872 points in the old old. 2) There was a statistical significance ( t = 1. 530. p<05) in self-esteem between the young old and the old old which showed. on an average. 3.091 points in the young old and 2.981 points in the old old. Conclusion: The old old is less the level of health-promoting behavior and self-esteem than the young old. It is necessary to develop comprehensive health-promoting program in order to improve a healthy lifestyle for the old old.

  • PDF

A Comparison of Various Exercises for Scapular Stabilization (견갑골 안정화를 위한 다양한 운동의 비교연구)

  • Kim, Myungjin;Lee, Yujin;Kim, Jihyuk;Bae, Wonsik
    • Journal of The Korean Society of Integrative Medicine
    • /
    • v.1 no.3
    • /
    • pp.51-62
    • /
    • 2013
  • PURPOSE : This study of 20 healthy male subjects by applying various scapular stabilization exercise to compared Serratus anterior and lower trapezius is change in ultrasound images. METHOD : Thirty healthy subjects voluntarily participated in this study. Ultrasound imaging was recorded from the increasing the activity of Serratus anterior(SA) and Lower trapezius(LT) muscles using Push-up plus, Wall slide, Scapular plane shoulder elevation with resistance exercise. Thickness changes in the Serratus anterior(SA) and lower trapezius(LT) muscles between the relaxed and contracted states in the each exercises. To identify statistical significance, one-way ANOVA with repeated measures was used with the significance level of .05. RESULT : The results of this study were as follows : 1) There were statistically significant difference in thickness changes in the Serratus anterior(SA) and lower trapezius(LT) muscles between the relaxed and contracted states in the each exercises. 2) The Scapular plane shoulder elevation with resistance is more effective to Strengthening in the scapular stabilization muscles than Push up-plus and Wall slide. CONCLUSION : The Scapular plane shoulder elevation with resistance may be used to effectively that patient with various shoulder pain.

Body Height Effect on Brain Volumes in Youth Decreases in Old Age in Koreans

  • Koh, In-Song
    • Interdisciplinary Bio Central
    • /
    • v.3 no.3
    • /
    • pp.11.1-11.5
    • /
    • 2011
  • The MRI (magnetic resonance imaging) volumetric analysis of the brain was performed in 59 healthy elderly Koreans (aged 62-76 years; 34 male, 25 female) to investigate whether the previously reported significant correlations between body height and brain volumes in the young aged Koreans (20's) still exist in the old aged Koreans (60's and 70's). Unlike previously reported significant correlations in the young aged Koreans, neither the correlation between whole brain volume and body height in male nor the correlation between cerebellar volume and body height in female show any significance in the old aged Koreans. The significant correlation between body height and whole brain volume was still observed when both male and female data were combined (r=0.27, P<0.05), but the correlation coef-ficient and the level of significance markedly decreased from those of previously reported Korean youth data (r=0.67, P<0.01). Simple linear regression analysis shows decrease of explanatory power of height (measured in $r^2$) from 44% in the youth group to 7% in the old age group on the variance of whole brain volume. Multiple linear regression analysis shows that age and sex, rather than height, are major explanatory variables for whole brain volume in the old aged Koreans. The loss of correlations in the aged group is suspected to be mainly due to age related brain volume changes.