نتایج جستجو برای: wilcoxon test
تعداد نتایج: 814290 فیلتر نتایج به سال:
BACKGROUND Recent findings suggest that exposure to organochlorine (OC) compounds, chlordanes and p,p'-dichlorodiphenyldichloroethylene (p,p'-DDE) in particular, may increase the risk of developing testicular germ cell tumors (TGCTs). OBJECTIVE To further investigate this question, we conducted a nested case-control study of TGCTs within the Norwegian Janus Serum Bank cohort. METHODS The st...
this exploratory study aimed to investigate a possible relationship between learners’ beliefs about language learning and one of their personality traits; that is,locus of control (loc). both variables, beliefs and locus of control, are assumed to influence the language learning process. the internal control index (ici) and the beliefs about language learning inventory (balli) were administered...
Methods Sixty-one asymptomatic children (31 girls, 30 boys) aged 7-9 years (mean 7.9 ±0.8) were assessed once by one observer for the sagittal curvatures of the trunk: thoracic kyphosis (TK), lumbar lordosis (LL) and sacral slope (SS) first with digital photography and with Rippstein plurimeter. Statistical analysis was performed using paired Student t-test, Wilcoxon matched-pairs and Pearson c...
METHODS: A retrospective chart review was conducted for all breast, head/neck, and lower extremity free flaps performed at a single-institution between 2005–2015. The primary endpoint, successful salvage, was defined as any flap that did not result in complete flap loss. Univariate analysis was performed using Chi-squared, Wilcoxon rank-sum, and Fisher’s exact test. Lastly, a multivariate logis...
METHODS: A retrospective chart review was conducted for all breast, head/neck, and lower extremity free flaps performed at a single-institution between 2005–2015. The primary endpoint, successful salvage, was defined as any flap that did not result in complete flap loss. Univariate analysis was performed using Chi-squared, Wilcoxon rank-sum, and Fisher’s exact test. Lastly, a multivariate logis...
OBJECT An electrical field cathode (negative pole) has trophic and tropic effects on injured spinal cord axons in in vitro and in vivo models of sea lamprey, rodent, and canine spinal cord injury (SCI) and it improves functional outcome. A human oscillating field stimulator (OFS) was built, a Food and Drug Administration (FDA) exemption number was obtained, and institutional review board approv...
abstract introduction: diabetes mellitus is the most common metabolic and endocrine disease. depressed heart rate variability (hrv) is an early warning sign of diabetic neuropathy. in numerous studies, spironolactone improved hrv and decreased mortality in congestive heart failure (chf). this study was performed to assess the effect of spironolactone on hrv in diabetic patients. methods: this ...
Methods Patients diagnosed of Juvenile dermatomyositis in La Fe Hospital (Valencia, Spain) since June 1992 to March 2013. Dates are shown in median and interquartile range for non-parametric variables, and for parametric variables is given as mean and standard deviation. To assess response to treatment, we used Wilcoxon test for paired measures of non-parametric variables and t-student for para...
OBJECTIVE To determine the perceptions of general practitioners (GPs) about the benefits of coronary artery bypass surgery, in terms of gains in life expectancy, for different groups of patients. DESIGN A questionnaire survey of all GPs in Northern Ireland. SETTING A survey conducted collaboratively by the departments of public health medicine in each of the four health boards in the provin...
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