scholarly journals Pulmonary Catherization Data Correlate Poorly with Renal Function in Heart Failure

2018 ◽  
Vol 8 (3) ◽  
pp. 183-191
Author(s):  
Luke Masha ◽  
James Stone ◽  
Danielle Stone ◽  
Jun Zhang ◽  
Luo Sheng
Keyword(s):  
Heart Failure ◽  
Renal Function ◽  
Pulmonary Artery ◽  
Renal Dysfunction ◽  
Correlation Coefficient ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
History Of ◽  
Cardiac Filling ◽  
The Relationship

Background: The mechanisms of renal dysfunction in heart failure are poorly understood. We chose to explore the relationship of cardiac filling pressures and cardiac index (CI) in relation to renal dysfunction in advanced heart failure. Objectives: To determine the relationship between renal function and cardiac filling pressures using the United Network of Organ Sharing (UNOS) pulmonary artery catherization registry. Methods: Patients over the age of 18 years who were listed for single-organ heart transplantation were included. Exclusion criteria included a history of mechanical circulatory support, previous transplantation, any use of renal replacement therapy, prior history of malignancy, and cardiac surgery, amongst others. Correlations between serum creatinine (SCr) and CI, pulmonary capillary wedge pressure (PCWP), pulmonary artery systolic pressure (PASP), and pulmonary artery diastolic pressure (PADP) were assessed by Pearson correlation coefficients and simple linear regression coefficients. Results: Pearson correlation coefficients between SCr and PCWP, PASP, and PADP were near zero with values of 0.1, 0.07, and 0.08, respectively (p < 0.0001). A weak negative correlation coefficient between SCr and CI was found (correlation coefficient, –0.045, p = 0.027). In a subgroup of young patients unlikely to have noncardiac etiologies, no significant correlations between these values were identified. Conclusion: These findings suggest that, as assessed by pulmonary artery catherization, none of the factors – PCWP, PASP, PADP, or CI – play a prominent role in cardiorenal syndromes.

Evaluation of Cultural Intelligence in Staff of Industries, Mines and Trades Organizations - Case Study

2017 ◽  
pp. 429-438
Author(s):  
Mohammad Abdolshah ◽  
Baranak Geranfar ◽  
Eisa Akbari ◽  
Jalil Vaziri
Keyword(s):  
Organizational Culture ◽  
Correlation Coefficient ◽  
Cultural Intelligence ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Statistical Population ◽  
Key Competencies ◽  
The Relationship ◽  
Personnel Department

This article examines one of the key competencies of the 21st century known as cultural intelligence (CQ). This study investigates the relationship between CQ, organizational culture, and the effectiveness of staff in the industry, mine, and trade organizations of Semnan province in Iran. Using correlational analysis, the statistical population includes a total of 103 people from 141 employees based on personnel department documents. Three questionnaires were used to measure the variables and descriptive and deductive statistics were applied to evaluate and analyze the data. The Pearson correlation coefficient and multivariate regression were used in deductive statistics to obtain the results. The findings show there is a significant relationship between CQ, organizational culture, and effectiveness. Among four cultural intelligence factors, only the knowledge of CQ can predict the effectiveness. The calculated correlation coefficient indicates that the creativity factors and communication pattern have the highest correlation coefficients.

Evaluation of Cultural Intelligence in Staff of Industries, Mines and Trades Organizations - Case Study

2016 ◽  
Vol 4 (2) ◽  
pp. 1-10
Author(s):  
Mohammad Abdolshah ◽  
Baranak Geranfar ◽  
Eisa Akbari ◽  
Jalil Vaziri
Keyword(s):  
Organizational Culture ◽  
Correlation Coefficient ◽  
Cultural Intelligence ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Statistical Population ◽  
Key Competencies ◽  
The Relationship ◽  
Personnel Department

This article examines one of the key competencies of the 21st century known as cultural intelligence (CQ). This study investigates the relationship between CQ, organizational culture, and the effectiveness of staff in the industry, mine, and trade organizations of Semnan province in Iran. Using correlational analysis, the statistical population includes a total of 103 people from 141 employees based on personnel department documents. Three questionnaires were used to measure the variables and descriptive and deductive statistics were applied to evaluate and analyze the data. The Pearson correlation coefficient and multivariate regression were used in deductive statistics to obtain the results. The findings show there is a significant relationship between CQ, organizational culture, and effectiveness. Among four cultural intelligence factors, only the knowledge of CQ can predict the effectiveness. The calculated correlation coefficient indicates that the creativity factors and communication pattern have the highest correlation coefficients.

scholarly journals The Relationship of Respecting Inherent Dignity with Anxiety, Depression, Stress and Quality of Life in Patients with Heart Failure

2020 ◽  
Vol 21 (8) ◽  
Author(s):  
Kobra Salehi ◽  
Farimah Shirani ◽  
Vajihe Atashi ◽  
Somayeh Ghafari
Keyword(s):  
Quality Of Life ◽  
Heart Failure ◽  
Correlation Coefficient ◽  
Pearson Correlation ◽  
Inherent Dignity ◽  
Patients With Heart Failure ◽  
Relationship Of ◽  
Anxiety Depression ◽  
The Relationship

Background: Respecting inherent human dignity has a prominent role and is of great importance in health care discussions. Respect for people’s dignity is the basis of nursing care and is a step toward increasing patients’ satisfaction with the services provided by the staff. Objectives: The present study aimed to investigate the relationship of respect for dignity with anxiety, depression, stress and quality of life in patients with heart failure. Methods: This is a descriptive analytic study. The study population consisted of the patients with heart failure hospitalized at Isfahan University of Medical Sciences from 2017 to 2018. In this research, samples were selected through purposive sampling, consisting of 150 patients with heart failure from the research population. Then personal characteristics questionnaire, Inherent Dignity questionnaire (IDQ), Minnesota Living with Heart Failure questionnaire (MLHF), as well as Depression, Anxiety, Stress scale (DASS) were completed by samples. Statistical analysis was performed using descriptive statistical methods, Pearson’s correlation coefficient, one-way ANOVA and independent t-test. Results: The mean total score for patients’ inherent dignity was 102.21 out of 144, with a standard deviation of 17.92. Pearson correlation coefficient showed that the total score of the patients’ inherent dignity had no significant relationship with age (P = 0.57) and the number of heart failure-related hospital admissions (P = 0.71). Pearson correlation coefficient showed that the total score of the patients’ inherent dignity had an inverse relationship with their scores of the quality of life (P = 0.002), depression (P = 0.004), anxiety (P = 0.001), and stress (P < 0.001). Conclusions: Considering the fact that nowadays the improvement of service quality is one of the priorities of healthcare and, on the other hand, as research findings show, respecting the dignity of heart failure patients plays an important role in reducing stress, anxiety, and depression as well as increasing the quality of life, these results can be used in planning to support and improve the treatment, and the care provided for patients, and to guide the future researches regarding the inherent dignity of these patients.

scholarly journals Measuring the Relationship of Bivariate Data Using Hodges-Lehman Estimator

2020 ◽  
pp. 1-5
Author(s):  
Suhaida Abdullah ◽  
Nur Amira Zakaria ◽  
Nor Aishah Ahad ◽  
Norhayati Yusof ◽  
Sharipah Soaad Syed Yahaya
Keyword(s):  
Correlation Coefficient ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Median Absolute Deviation ◽  
Poor Correlation ◽  
Pearson Correlation Coefficient ◽  
Absolute Deviation ◽  
Bivariate Data ◽  
Relationship Of ◽  
The Relationship

The relationship of bivariate data ordinarily measured using correlation coefficient. The most commonly used correlation coefficient is the Pearson correlation coefficient. This coefficient is well-known as the best coefficient for interval or ratio bivariate data with a linear relationship. Even though this coefficient is good under the mentioned condition, it also becomes very sensitive to a small departure from linearity. Usually, this is because of the existence of an outlier. For that reason, this paper provides new robust correlation coefficients which combine the elements of nonparametric technique from the Hodges Lehmann estimator and the parametric technique based on the Pearson correlation coefficient. This paper also introduces different scale estimators such as median and median absolute deviation (MADn) and denoted by rHL(med) and rHL(MADn) respectively. The performance of the proposed correlation coefficients is measured by the coefficient values and these values are also being compared to the Pearson correlation coefficient and several existing robust correlation coefficients. The results show that the Pearson correlation coefficient (r) with no doubt is very good under perfect data condition, but with only 10% outliers, it not only give poor correlation value but turns the direction of the relationship to negative. While the rHL(med) and rHL(MADn) offer the highest coefficient values and these values are robust to the existence of outliers by up to 30%. With very good performance under all data conditions yet simple in the calculation, the rHL(med) and rHL(MADn) is considered a good alternative to the r when need to deal with outliers. Keywords: correlation coefficient; Hodges Lehmann; median; median absolute deviation (MADn)

Reliability of the Minimum Masking Level as Outcome Variable in Tinnitus Clinical Research

2020 ◽  
Vol 29 (3) ◽  
pp. 429-435
Author(s):  
Patricia C. Mancini ◽  
Richard S. Tyler ◽  
Hyung Jin Jun ◽  
Tang-Chuan Wang ◽  
Helena Ji ◽  
...  
Keyword(s):  
Standard Deviation ◽  
High Frequency ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
Outcome Variable ◽  
Reliable Estimate ◽  
Moderate Correlation ◽  
Trained Subjects ◽  
The Relationship ◽  
Minimum Intensity

Purpose The minimum masking level (MML) is the minimum intensity of a stimulus required to just totally mask the tinnitus. Treatments aimed at reducing the tinnitus itself should attempt to measure the magnitude of the tinnitus. The objective of this study was to evaluate the reliability of the MML. Method Sample consisted of 59 tinnitus patients who reported stable tinnitus. We obtained MML measures on two visits, separated by about 2–3 weeks. We used two noise types: speech-shaped noise and high-frequency emphasis noise. We also investigated the relationship between the MML and tinnitus loudness estimates and the Tinnitus Handicap Questionnaire (THQ). Results There were differences across the different noise types. The within-session standard deviation averaged across subjects varied between 1.3 and 1.8 dB. Across the two sessions, the Pearson correlation coefficients, range was r = .84. There was a weak relationship between the dB SL MML and loudness, and between the MML and the THQ. A moderate correlation ( r = .44) was found between the THQ and loudness estimates. Conclusions We conclude that the dB SL MML can be a reliable estimate of tinnitus magnitude, with expected standard deviations in trained subjects of about 1.5 dB. It appears that the dB SL MML and loudness estimates are not closely related.

IMPROVEMENT OF SPRING DURUM WHEAT SELECTION METHODOLOGIES UNDER CLIMATE CHANGE CONDITIONS

1970 ◽  
pp. 33-36
Author(s):  
А. I. Grabovets ◽  
V. P. Kadushkina ◽  
S. А. Kovalenko
Keyword(s):  
Grain Yield ◽  
Durum Wheat ◽  
Correlation Coefficient ◽  
Harvest Index ◽  
Unit Area ◽  
Correlation Coefficients ◽  
Chemical Mutagenesis ◽  
Main Method ◽  
The Relationship ◽  
Selection Of

With the growing aridity of the climate on the Don, it became necessary to improve the methodology for conducting the  breeding of spring durum wheat. The main method of obtaining the source material remains intraspecific step hybridization. Crossings were performed between genetically distant forms, differing in origin and required traits and properties. The use of chemical mutagenesis was a productive way to change the heredity of genotypes in terms of drought tolerance. When breeding for productivity, both in dry years of research and in favorable years, the most objective markers were identified — the size of the aerial mass, the mass of grain per plant, spike, and harvest index. The magnitude of the correlation coefficients between the yield per unit area and the elements of its structure is established. It was most closely associated with them in dry years, while in wet years it decreased. Power the correlation of the characteristics of the pair - the grain yield per square meter - the aboveground biomass averaged r = 0.73, and in dry years it was higher (0.91) than in favorable ones (0.61 - 0.70) , between the harvest and the harvest index - r = 0.81 (on average). In dry years, the correlation coefficient increased to 0.92. Research data confirms the greatest importance of the mass of grain from one ear and the plant in the formation of grain yield per unit area in both dry and wet years. In dry years, the correlation coefficient between yield and grain mass per plant was on average r = 0.80; in favorable years, r = 0.69. The relationship between yield and grain mass from the ear was greater — r = 0.84 and r = 0.82, respectively. Consequently, the breeding significance of the aboveground mass and the productivity of the ear, as a criterion for the selection of the crop, especially increases in the dry years. They were basic in the selection.

scholarly journals Innovative Correlation Coefficient Measurement with Fuzzy Data

2016 ◽  
Vol 2016 ◽  
pp. 1-11
Author(s):  
Berlin Wu ◽  
Chin Feng Hung
Keyword(s):  
Mathematics Achievement ◽  
Correlation Coefficient ◽  
Empirical Studies ◽  
Correlation Coefficients ◽  
Interval Data ◽  
Fuzzy Data ◽  
Pearson’S Correlation Coefficient ◽  
Coefficient Measurement ◽  
The Relationship ◽  
Fuzzy Interval

Correlation coefficients are commonly found with crisp data. In this paper, we use Pearson’s correlation coefficient and propose a method for evaluating correlation coefficients for fuzzy interval data. Our empirical studies involve the relationship between mathematics achievement and other projects.

Abstract 5700: Worsening Renal Function and Arrhythmic Event in Implantable Cardioverter Defibrillator Patients with Nonischemic Heart Failure

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Atsushi Takahashi ◽  
Tsuyoshi Shiga ◽  
Daigo Yagishita ◽  
Keisuke Futagawa ◽  
Naoki Serizawa ◽  
...  
Keyword(s):  
Heart Failure ◽  
Renal Function ◽  
Renal Dysfunction ◽  
Implantable Cardioverter Defibrillator ◽  
Shock Therapy ◽  
Electrical Storm ◽  
Icd Implantation ◽  
Cardioverter Defibrillator ◽  
Arrhythmic Event ◽  
Icd Shock

Purpose: Implantable Cardioverter Defibrillator (ICD) prevents sudden cardiac death in high risk patients with heart failure (HF). Worsening renal function (WRF) is associated with mortality in patients with myocardial infarction or HF, but its effect on lethal arrhythmia is unknown. We evaluated the influence of WRF on the occurrence of arrhythmic events in patients with nonischemic HF and ICD. Methods: A total of 286 nonischemic HF patients who underwent ICD implantation between 1990 and 2007 were studied. Estimated Glomerular Filtration Rate (eGFR) was calculated using the Modification of Diet in Renal Disease. Renal dysfunction was defined as eGFR <60mL/min/1.73m 2 and WRF was defined as 15mL/min/1.73m 2 per year. Differences in arrhythmia recurrences according to the eGFR and WRF were compared by Kaplan-Meier survival curves. Results: During a mean follow-up time of 2.2+/−1.0 years, 94 (33%) of 286 patients (mean age; 57+/−15 years, 72% male) experienced appropriate ICD shock therapy. There was a significantly higher cumulative rate of appropriate ICD shock therapy (p<0.05) and electrical storm (p<0.05) in patients with renal dysfunction than others. The patients with renal dysfunction at baseline experience WRF more frequently than other patients (53% vs. 23%, respectively, p<0.01). After correcting for age, sex, left ventricular ejection fraction (LVEF), indication for ICD implantation, and use of beta-blockers in a Cox regression model, WRF was still an independent predictor of the time to first appropriate shock (HR 2.21, 95% CI 1.32–3.69, p<0.05) and electrical storm (HR 2.22, 95% CI 1.19 – 4.13, p<0.05). The result of subgroup analysis of 147 patients with low LVEF (LVEF<35%) indicated that the patients with WRF experienced electrical storms more frequently (p<0.05). Conclusion: WRF is associated with increased rate of arrhythmic event in nonischemic HF patients. Especially, those patients with low LVEF and WRF experience more frequent ICD shocks.

scholarly journals Is there a link between glucose levels and heart failure? An update

2010 ◽  
Vol 54 (5) ◽  
pp. 488-497 ◽  
Author(s):  
Arnaldo Schainberg ◽  
Antônio Ribeiro-Oliveira Jr. ◽  
José Marcio Ribeiro
Keyword(s):  
Risk Factors ◽  
Heart Failure ◽  
Epidemiological Studies ◽  
Left Ventricular ◽  
Glucose Levels ◽  
Factors Analysis ◽  
History Of ◽  
Cv Disease ◽  
The Relationship

It has been well documented that there is an increased prevalence of standard cardiovascular (CV) risk factors in association with diabetes and with diabetes-related abnormalities. Hyperglycemia, in particular, also plays an important role. Heart failure (HF) has become a frequent manifestation of cardiovascular disease (CVD) among individuals with diabetes mellitus. Epidemiological studies suggest that the effect of hyperglycemia on HF risk is independent of other known risk factors. Analysis of datasets from populations including individuals with dysglycemia suggests the pathogenic role of hyperglycemia on left ventricular function and on the natural history of HF. Despite substantial epidemiological evidence of the relationship between diabetes and HF, data from available interventional trials assessing the effect of a glucose-lowering strategy on CV outcomes are limited. To provide some insight into these issues, we describe in this review the recent important data to understand the natural course of CV disease in diabetic individuals and the role of hyperglycemia at different times in the progression of HF.

scholarly journals The Relationship Between Soldier Height, Weight and Army Combat Fitness Scores

2021 ◽  
Author(s):  
Ryan Palmer ◽  
Mark DeBeliso
Keyword(s):  
United States Army ◽  
Body Mass ◽  
National Guard ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
The United States ◽  
Military Leaders ◽  
Physical Fitness Test ◽  
Fitness Test ◽  
The Relationship

The United States Army recently implemented the Army Combat Fitness Test (ACFT) which was designed to more accurately measure functional-combat fitness constructs. The ACFT replaced the former Army Physical Fitness Test (APFT). The three advent APFT consisted of: two-minute push-ups (PU), two-minute sit-ups (SU), and a timed two-mile run (RUN). The ACFT consists of six events; 3 Rep Max Deadlift (MDL), Standing Power Throw (SPT), Hand Release Push-up (HRP), Sprint-Drag-Carry (SDC), Hanging Leg Tuck (LTK), and a timed two-mile run (2MR). This study investigated the relationship between Soldier height and body mass kg on ACFT scores of 655 male U.S. Army National Guard Soldiers in a Field Artillery Brigade. For the purpose of the investigation body mass index (BMI) was calculated as the metric representing the Soldier(s) height and weight. The mean and standard deviation (sd) were calculated for the ACFT event and total scores. Pearson correlation coefficients (PCCs or r) were calculated between BMI and ACFT event and total scores. Likewise, PCCs were calculated between the ACFT event and total scores. The ACFT mean(sd) scores were as follows: MDL=92.2(31.8) (3 maximum repetitions), SPT=9.5(2.2) (meters), HRP=24.6(13.1) (repetitions), SDC=119.8(21.7) (seconds), LTK=6.2(5.4) (repetitions), 2MR=1095.0(233.7) (seconds), ACFT total score=442.3(54.4) (points). Significant positive correlations were found between the ACFT total score: MDL (r=0.70), SPT (r=0.50), HRP (r=0.74), and LTK (r=0.76) events. Conversely, significant negative correlations were identified between ACFT total score: SDC (r=-0.68) and 2MR (r=-0.53) events. Within the parameters of this study, Soldier BMI demonstrated no to weak association with individual ACFT event or ACFT total scores. Further, the range of PCCs between the ACFT event scores were no to moderately high. Military leaders may consider the results provided as combat and fitness tests continue to evolve.

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