• Title/Summary/Keyword: rank regression

Search Result 290, Processing Time 0.024 seconds

A Study on the Urban Housewives Economic Well-Being According to Family Cohesion and Adaptability (도시주부의 가족응집력과 적응력에 따른 경제복지감)

  • 계선자;한정화
    • Journal of Family Resource Management and Policy Review
    • /
    • v.1 no.2
    • /
    • pp.59-77
    • /
    • 1997
  • The purpose of this study is to investigate some related factors which influence subjective economic well-being of the urban housewives, based on family cohesion and adaptability. Questionnaires were distributed to the 1,800 housewives residing in Seoul. The 1261 data obtained were analyzed by Frequency, Percentage, Mean and Multiple Regression. The major findings of this study were summarized as follows. (1) There were significant differences on the economic well-being of the urban housewives according to the social demographic variables, the objective variables, the perceptions of the subjective variables, the conjugal variables, the perceptions of the subjective economics well-being by the urban housewives were in the rank of the perceptions of the subjective(R²=.37), the objective variable(R²=.33) and the family cohesion and adaptability(R²=.28). Based on the above findings, this study concludes that the intermediary variables. such as family cohesion and adaptability are essential elements for comprehending the urban housewives’economic well-being. Accordingly in has been found that the value of family remains important factors to guide in despite the radical changes. If greater attentions should be directed to the social welfare, the quality of family life could be improved and stabilized.

  • PDF

Factors Affecting Survival in Patients with Colorectal Cancer in Shiraz, Iran

  • Zare-Bandamiri, Mohammad;Khanjani, Narges;Jahani, Yunes;Mohammadianpanah, Mohammad
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.17 no.1
    • /
    • pp.159-163
    • /
    • 2016
  • Background: Colorectal cancer (CRC) is the third most common cancer in the world, and the fourth in Iran in both genders. The aim of this study was to find predictive factors for CRC survival. Materials and Methods: Medical records of 570 patients referred to the radiotherapy oncology department of Shiraz Namazi hospital from 2005 to 2010 were retrospectively analysed. Data were collected by reviewing medical records, and by telephone interviews with patients. Survival analysis was performed using the Cox's regression model with survival probability estimated with Kaplan-Meier curve. The log-rank test was used to compare survival between strata. Data was analyzed with Stata 12. Results: The five-year survival rate and the mean survival time after cancer diagnosis were 58.5% and $67{\pm}4months$. On multivariate analysis, age of diagnosis, disease stage and primary tumor site, lymphovascular invasion and type of treatment (in colon cancer) were significant factors for survival. Conclusions: Age of diagnosis and type of treatment (adjuvant therapy in patients with colon cancer) were two modifiable factors related to survival of CRC patients. Therefore earlier diagnosis might help increase survival.

Recreational Physical Activity and Risk of Ovarian Cancer: a Meta-analysis

  • Zhou, Li-Min
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.15 no.13
    • /
    • pp.5161-5166
    • /
    • 2014
  • Our aim was to access the association between recreational physical activity (RPA) and risk of ovarian cancer (OC). The studies were retrieved from the PubMed and Embase databases up to February 20th, 2014. Risk ratios (OR) and 95% confidence intervals (CI) were used to estimate effect sizes. Random-effects or fixed-effects models were used to pool the data. The trim and fill method was applied for sensitivity analysis. Begg's rank correlation test and Egger's regression asymmetry test were employed to assess the publication bias. A total of 6 studies (435398 participants including 2983 OC patients) were included in this meta-analysis. The overall estimate indicated that there was weakly inverse association between RPA and OC risk (RR=0.90, 95%CI: 0.72-1.12, p=0.335). Meanwhile, for prospective cohort studies, a result consistent with the overall estimate was obtained (RR=1.12, 95% CI: 0.88-1.42, p=0.356). However, for case control studies, the pooled estimate of RR was 0.76 (95%CI: 0.64-0.90, p=0.002), indicating a clear significant association between RPA and OC risk. In addition, the sensitivity analysis indicated a significant link between RPA and risk of OC after removing Lahmann's study (RR=0.80, 95% CI: 0.68-0.93, p=0.004). No significant publication bias was found (Begg's test: p=1.00; Egger's test: p=0.817). In conclusion, our meta-analysis indicated a weakly inverse relationship between RPA and the occurrence of OC.

Glycemic Index and Glycemic Load Dietary Patterns and the Associated Risk of Breast Cancer: A Case-control Study

  • Woo, Hae Dong;Park, Ki-Soon;Shin, Aesun;Ro, Jungsil;Kim, Jeongseon
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.14 no.9
    • /
    • pp.5193-5198
    • /
    • 2013
  • The glycemic index (GI) and glycemic load (GL) have been considered risk factors for breast cancer, but association studies of breast cancer risk using simple GI and GL might be affected by confounding effects of the overall diet. A total of 357 cases and 357 age-matched controls were enrolled, and dietary intake was assessed using a validated food frequency questionnaire (FFQ) with 103 food items. GI and GL dietary patterns were derived by reduced rank regression (RRR) method. The GI and GL pattern scores were positively associated with breast cancer risk among postmenopausal women [OR (95%CI): 3.31 (1.06-10.39), p for trend=0.031; 9.24 (2.93-29.14), p for trend<0.001, respectively], while the GI pattern showed no statistically significant effects on breast cancer risk, and the GL pattern was only marginally significant, among premenopausal women (p for trend=0.043). The GI and GL pattern scores were positively associated with the risk of breast cancer in subgroups defined by hormone receptor status in postmenopausal women. The GI and GL patterns based on all food items consumed were positively associated with breast cancer.

Effects of the Organizational Culture on the Job Satisfaction and Organization Commitment (간호사가 지각하는 간호조직문화유형이 직무만족, 조직몰입에 미치는 영향)

  • Lee, Eun-Joo;Kim, Mi-Ye;Han, Ji-Young
    • Journal of Korean Academy of Nursing Administration
    • /
    • v.14 no.1
    • /
    • pp.5-12
    • /
    • 2008
  • Purpose: This study aimed to examine the impact of Organizational Culture on job satisfaction and organizational commitment in nursing organization. Methods: The sample consisted of 264 nurses of 2 tertiary medical institutions. The instruments used in this study were the nursing organizational culture questionnaire (Han, 2001), job satisfaction scale (Paula, 1978), and Organizational Commitment scale (Mowday et al., 1979). The data were analyzed by descriptive statistics, one-way ANOVA, t-test, Pearson Correlation. Coefficient, and multiple regression using the SPSS Win 14.0 program. Results: The dominant organizational culture of nursing organization was rank-oriented culture. The mean score of job satisfaction and organizational commitment was 3.28 and 3.40 respectively. Organizational commitment and Job satisfaction were positively correlated with affiliative-oriented culture, innovative-oriented culture, and task-oriented culture. Affiliative-oriented and task-oriented culture were major variables influencing on job satisfaction and affiliative-oriented culture was a major variable influencing organizational commitment. Conclusion: Organizational culture, especially affiliative-oriented culture had a significant influence on nurses' job satisfaction and organizational commitment. Therefore, we have to develop strategies to enhancing the affiliative-oriented culture to improve the job satisfaction and organizational commitment of nurses.

  • PDF

Determinants of Retail Banking Efficiency: A Case of Vietcombank Branches in the Mekong-Delta Region

  • LE, Thi Thu Diem
    • The Journal of Asian Finance, Economics and Business
    • /
    • v.7 no.7
    • /
    • pp.439-451
    • /
    • 2020
  • This study focused on researching the factors affecting retail banking efficiency of Vietcombank branches in the Mekong-Delta region. By collecting data from financial statements from 15 branches of VCB in the Mekong-Delta Region between 2015 and 2018, the paper applies DEA estimation to measure the effectiveness of retail banking activities and uses the Tobit regression model to identify factors affecting retail banking efficiency. The results demonstrate that the retail banking efficiency of branches averaged 52.5% during the period. The rating result shows the branches in An Giang, Can Tho, Dong Thap, Kien Giang, Long An, Phu Quoc and Tra Noc rank at the top technical efficiency. In group of medium efficiency, there are branches in Soc Trang, Tien Giang and Vinh Long. In the category of the poor efficiency are the branches in Bac Lieu, Ben Tre, Ca Mau, Chau Doc and Tra Vinh. The results also show that bank scale-related factors, capital adequacy, credit quality, time specific and region impact significantly the retail banking efficiency. The research not, only contributes to enriching the empirical research method but also is significant for the management activities in business developing strategies, improving the operational efficiency of Vietcombank in the region.

Development of a Constituent Prediction Model of Domestic Rice Using Near Infrared Reflectance Analyzer(I) -Constituent Prediction Model of Brown and Milled Rice- (근적외선분석계를 이용한 국내산 쌀의 성분예측모델 개발(I) -현미와 백미의 성분예측모델-)

  • 한충수;동하원강
    • Journal of Biosystems Engineering
    • /
    • v.21 no.2
    • /
    • pp.198-207
    • /
    • 1996
  • To measure the moisture content, protein and viscosity of brown and milled rice with Near Infrared Reflectance(NIR) analyzer, the comparison and analysis of the data from the chemical analysis and NIR analyzer were conducted. The purpose of this study is to find out the fundamental data required for the prediction of rice qualify and taste rank, and to develop a measuring method of constituents and physical characteristics of domestic rice with NIR analyzer. The important results can be summarized as follows. 1. The $r^2$ and SEC of moisture calibration from brown rice powder were 0.87 and 0.09 respectively, those of milled rice powder were 0.95 and 0.08 respectively. 2. The $r^2$ and SEC of protein calibration from brown rice powder were 0.83 and 0.20 respectively, those of milled rice powder were 0.86 and 0.20 respectively. 3. The $r^2$ and SEC of viscosity calibration from brown rice powder were 0.36 and 15.50 respectively, those of milled rice powder were 0.55 and 12.98 respectively. Further study is required to develop better prediction model for viscosity. It is necessary the continuous study including wavelength selection, because $r^2$ is small for practical use. 4. The regression equation for one rice variety was nearly coincident with other. Therefore, it is required that the prediction model should be developed for the all rice samples.

  • PDF

The Effect of Norepinephrine on Immune function in elderly people (노르에피네프린이 노인의 면역기능에 미치는 영향)

  • Bae, Young-Sook
    • The Journal of Korean Physical Therapy
    • /
    • v.20 no.2
    • /
    • pp.19-24
    • /
    • 2008
  • Purpose: The purpose of this study was to examine how norepinephrine affects immunity in patients over age 65. Methods: We enrolled 25 male and female subjects age 65 or older. A low frequency electroacupuncture (EA) device was used to stimulate acupoint Hogu (L14). The 2 Hz frequency EA was applied to the acupoint for 20 minutes. Leukocyte subtypes-including neutrophils, lymphocytes, monocytes, eosinophils, and basophil-were then measured. The immunoglobulins IgG and IgM were also quantified. The data were finally analyzed using Wilcoxon singed-rank test and regression test as part of the SPSS WIN v. 10.1 program. Results: As norepinephrine levels decreased after EA stimulation, neutrophil, lymphocyte, and monocyte levels increased, and eosinophil and neutrophils levels decreased. Neutrophil and monocyte levels did not change to a statistically significant degree, but eosinophil levels showed a statistically significant decrease (p<0.05). Immunoglobulin IgG showed a statistically significant increase (p<0.05). Conclusion: This study showed that norepinephrine does affect immunity in persons over the age of 65. This indicates that there is an interaction between the nervous system and the immune system, and interaction that plays a crucial roles in the body's immune resistance and homeostasis.

  • PDF

Incidence of Colon Cancer Related to Cigarette Smoking and Alcohol Consumption in Adults with Metabolic Syndrome: Prospective Cohort Study (대사증후군 성인의 흡연 및 음주 상태가 대장암 발생 위험에 미치는 영향: 전향적 코호트 연구)

  • Jo, Ahra;Oh, Heeyoung
    • Journal of Korean Academy of Nursing
    • /
    • v.49 no.6
    • /
    • pp.713-723
    • /
    • 2019
  • Purpose: The purpose of this study was to identify the impact of cigarette smoking and alcohol consumption on the incidence of colon cancer in adults with metabolic syndrome. Methods: This study employed a longitudinal study design and utilized secondary data drawn from the Korean Genome and Epidemiology Study (KoGES). The data of a sample of 2,327 adults with metabolic syndrome tracked every two years from 2001 to 2014 were used in this study. Statistical data analyses of the frequency, number of cases per 100,000 person-years, log-rank test, Kaplan-Meier curve, and Cox's proportional hazards regression were performed using IBM SPSS statistics version 24. Results: During the observation period, the number of colon cancer cases was 46, and the total person-years were 252,444. The incidence of colon cancer was higher in current, over 10 pack-year smokers when compared to non-smokers (hazard ratio=3.38, 95% confidence interval=1.09~8.42). Conclusion: Excessive and long-term smoking should be avoided to prevent colon cancer, especially in adults with metabolic syndrome, since it might exacerbate the risk factors of colon cancer. Particularly, health professionals need to provide individualized smoking cessation interventions to those at high risk of colon cancer.

An Investigation on Determinants of Apartment Price in Ilsan Area (일산지역의 공동주택 평당매매 가격결정 특성에 관한 연구)

  • Jang, Han-Sub;Yoo, Seon-Jong
    • Journal of the Korean housing association
    • /
    • v.18 no.6
    • /
    • pp.35-44
    • /
    • 2007
  • The purpose of this paper is to find out the factors affecting the apartment price given three sets of variables such as characteristics of apartment building, apartment site, and location. Data of 1,579 housing units in 224 apartment complex sites in Ilsan city were selected from the housing information of four public and private housing sources in 2006. The first set of variables for physical features include housing size (pyoung), preferring-floor, building orientation, heating system and structure of entrance. The second set of variables for building were number of housing units, built year and rank of construction company. The third set of variables for location were distance from number of school, the subway station, distance of department store and park. For the analysis, the hedonic price model, which was one of the methods to estimate social convenience, was used along with the SPSS statistical program and regression analysis. The results are as follows, Firstly, in the structural characteristic variables, it was analyzed that all of the variables except facing affected the apartment price. Secondly, In the site characteristic variables, unusually all of the variables were not affected the apartment price in Ilsan city. Finally, the locational characteristic variables number of school, the subway station, distance of department store and park affected the apartment price. In case of Ilsan city, educational facilities was likely to positively contribute to the price of apartment.