نتایج جستجو برای: spearman coefficient

تعداد نتایج: 176394  

Journal: :Archives of physical medicine and rehabilitation 1998
A Curt M E Keck V Dietz

OBJECTIVE Prediction of outcome of ambulatory capacity and hand function in tetraplegic patients with spinal cord injury (SCI) using neurologic examination, according to the protocol of the American Spinal Injury Association (ASIA) and motor-evoked potentials (MEP). DESIGN Correlation study on a prospective cohort. SETTING SCI center, university hospital. PATIENTS Thirty-six patients with...

Journal: :Archives of neurology 1999
M A van Walderveen L Truyen B W van Oosten J A Castelijns G J Lycklama à Nijeholt J H van Waesberghe C Polman F Barkhof

OBJECTIVE To evaluate whether degree of inflammatory activity in multiple sclerosis, expressed by frequency of gadolinium enhancement, has prognostic value for development of hypointense lesions on T1-weighted spin-echo magnetic resonance images, a putative marker of tissue destruction. DESIGN Cohort design with long-term follow-up. Thirty-eight patients with multiple sclerosis who in the pas...

2014
Satyanand Sathi Himanshu Mahapatra Sham Sunder Rajesh Jayaraman Neera Sharma Himanshu Verma Venkataramanan Krishnamoorthy Anurag Gupta Prabhu Kanchi Sunil Daksh Lalit Pursnani Faisal Shadab Manveer Singh

BACKGROUND Cardiovascular biomarkers such as N-terminal pro-B-type natriuretic peptide (NT-proBNP), cardiac troponin T (cTnT), hs-CRP (high sensitivity C-reactive protein), and albuminuria predict underlying heart disease in the general population as well as CKD patients. OBJECTIVES We aimed to study the association of NT-proBNP, cTnT, hs-CRP, and spot urine albumin creatinine ratio with caro...

2007
Jan Hauke Tomasz Kossowski Adam Mickiewicz

Spearman’s rank correlation coefficient (denoted here by rs) is a nonparametric (distribution-free) rank statistic proposed by Charles Spearman as a measure of the strength of the associations between two variables. It is a measure of a monotone association that is used when the distribution of the data makes Pearson’s correlation coefficient undesirable or misleading. Spearman’s coefficient is...

2011
Eulalia Szmidt Janusz Kacprzyk

This paper is a continuation of our previous work on Pearson’s coefficient r and we discuss here the concept of the Spearman correlation coefficient and the Kendall correlation coefficient between Atanassov’s intuitionistic fuzzy sets (A-IFSs, for short) to measure the degree of association between the A-IFSs when the assumption that the data distributions are normal is not valid or when data a...

Journal: :Acta biochimica Polonica 2015
Monika Nowrotek Aleksandra Ziembińska-Buczyńska Korneliusz Miksch

Pharmaceutical substances and their residues are increasingly present in the environment. Therefore, attempts at their removal are made by using different processes. Increasingly important among these processes are those modeled on natural phenomena which occur in wetland ecosystems, called technical scale constructed wetlands. Microbial degradation is an important process in these constructed ...

2017
Feng Zhu Hongda Bao Peng Yan Shunan Liu Mike Bao Zezhang Zhu Zhen Liu Yong Qiu

BACKGROUND The factors associated with lateral curve flexibility in degenerative scoliosis have not been well documented. Disc degeneration could result in significant change in stiffness and range of motion in lateral bending films. The osteophytes could be commonly observed in degenerative spine but the relationship between osteophyte formation and curve flexibility remains controversial. The...

Journal: :The Journal of bone and joint surgery. American volume 2014
Rick W Wright

BACKGROUND Osteoarthritis of the knee is commonly diagnosed and monitored with radiography. However, the reliability of radiographic classification systems for osteoarthritis and the correlation of these classifications with the actual degree of confirmed degeneration of the articular cartilage of the tibiofemoral joint have not been adequately studied. METHODS As the Multicenter ACL (anterio...

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