نتایج جستجو برای: multivariable regression

تعداد نتایج: 329596  

2015
Naveen Sidhu Ari R Joffe Paul Doughty Shabnam Vatanpour Irina Dinu Gwen Alton Bryan Acton Charlene M T Robertson

BACKGROUND We aimed to determine whether sepsis is associated with neurocognitive outcomes 4.5 years after congenital heart disease surgery in early infancy. METHODS AND RESULTS A secondary analysis from a prospective inception cohort included all children having congenital heart disease surgery done at ≤6 weeks of age with cardiopulmonary bypass at the Western Canadian referral center from 1...

Journal: :PLoS Medicine 2006
Graciela S Alarcón Gerald McGwin Michelle Petri Rosalind Ramsey-Goldman Barri J Fessler Luis M Vilá Jeffrey C Edberg John D Reveille Robert P Kimberly

BACKGROUND Renal involvement is a serious manifestation of systemic lupus erythematosus (SLE); it may portend a poor prognosis as it may lead to end-stage renal disease (ESRD). The purpose of this study was to determine the factors predicting the development of renal involvement and its progression to ESRD in a multi-ethnic SLE cohort (PROFILE). METHODS AND FINDINGS PROFILE includes SLE patie...

Journal: :BJU international 2014
Jens Hansen Marco Bianchi Maxine Sun Michael Rink Fabio Castiglione Firas Abdollah Thomas Steuber Sascha A Ahyai Stefan Steurer Cosima Göbel Massimo Freschi Francesco Montorsi Shahrokh F Shariat Margit Fisch Markus Graefen Pierre I Karakiewicz Alberto Briganti Felix K-H Chun

OBJECTIVE To examine whether percentage of tumour volume (%TV) and percentage of high-grade tumour volume (%HGTV) help to better identify men at higher risk of early biochemical recurrence (BCR) after radical prostatectomy (RP) for non-metastatic high-risk prostate cancer, as early BCR after RP might be associated with higher risk of metastases and cancer-specific mortality. PATIENTS AND METH...

A. Tabibi and A. Sadeghi, G. Afkhami, S. A. Hosseini,

Physical properties of cotton yarns are affected by the characteristics of cotton fibers such as fineness, length, maturity and strength. This relationship has been worked out by means of multivariable regression and stepwise method for an open-end spun (NeC 20) cotton yarn. Moreover, with the help of linear programming, it was made possible to determine the percentage of different cottons in t...

2002
Richard D. De Veaux Lyle H. Ungar

Arti cial neural networks are being used with increasing frequency for high dimensional problems of regression or classi cation. This article provides a tutorial overview of neural networks, focusing on back propagation networks as a method for approximating nonlinear multivariable functions. We explain, from a statistician's vantage point, why neural networks might be attractive and how they c...

A. Tabibi and A. Sadeghi, G. Afkhami, S. A. Hosseini,

Physical properties of cotton yarns are affected by the characteristics of cotton fibers such as fineness, length, maturity and strength. This relationship has been worked out by means of multivariable regression and stepwise method for an open-end spun (NeC 20) cotton yarn. Moreover, with the help of linear programming, it was made possible to determine the percentage of different cottons in t...

Journal: :the archives of bone and joint surgery 0
rinne peters hand and upper extremity service, department of orthopaedic surgery, yawkey center, massachusetts general hospital, boston, usa mariano menendez hand and upper extremity service, department of orthopaedic surgery, yawkey center, massachusetts general hospital, boston, usa jos mellema hand and upper extremity service, department of orthopaedic surgery, yawkey center, massachusetts general hospital, boston, usa david ring hand and upper extremity service, department of orthopaedic surgery, yawkey center, massachusetts general hospital, boston, usa ana-maria vranceanu department of psychiatry, massachusetts general hospital, boston, usa

background: although upper-extremity disability correlates with psychosocial aspects of illness the association with sleep disturbance in upper extremity disability is less certain. to evaluate whether sleep disturbance is associated with upper-extremity disability among patients with upper extremity illness, accounting for sociodemographic, condition-related, and psychosocial factors. methods:...

Journal: :Circulation. Cardiovascular imaging 2011
Jonathan Rubin Hyuk-Jae Chang Khurram Nasir Roger S Blumenthal Michael J Blaha Eue-Keun Choi Sung-A Chang Yeonyee E Yoon Eun Ju Chun Sang-il Choi Arthur S Agatston Juan J Rivera

BACKGROUND Elevated levels of C-reactive protein (CRP) are associated with poor cardiovascular outcomes, even after accounting for traditional cardiovascular risk factors. We sought to analyze the relationship between levels of CRP and coronary plaque subtypes as assessed by coronary computed tomography angiography. METHODS AND RESULTS We evaluated 1004 asymptomatic South Korean subjects (mea...

2017
Ping Fang Jingcheng Dong Fangfang Zeng Zihui Tang

AIMS/INTRODUCTION The purpose of the present study was to investigate the severity of glucose profiles and β-cell function associated with diabetic cardiovascular autonomic neuropathy (DCAN) in a Chinese sample. MATERIALS AND METHODS A community-based, cross-sectional study to analyze the risk factors of DCAN was carried out with 455 individuals recruited from a Chinese population. The glucos...

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