Results 61 to 70 of about 256,465 (275)

Challenging computations of Hilbert bases of cones associated with algebraic statistics [PDF]

, 2010
In this paper we present two independent computational proofs that the monoid derived from $5\times 5\times 3$ contingency tables is normal, completing the classification by Hibi and Ohsugi. We show that Vlach's vector disproving normality for the monoid
Bruns, Winfried, Hemmecke, Raymond, Ichim, Bogdan, Koeppe, Matthias, Soeger, Christof   +4 more
core  

Perceptions About Asymptomatic Hyperuricemia and Views About Urate‐Lowering Therapy in People With Asymptomatic Hyperuricemia

Arthritis Care &Research, EarlyView.
Objective Asymptomatic hyperuricemia is a precursor of gout and is also associated with cardiovascular disease and chronic kidney disease. The aim of this study was to understand perceptions about asymptomatic hyperuricemia and views about urate‐lowering therapy in people with asymptomatic hyperuricemia. Methods Participants in a multinational study of
Nicola Dalbeth, Sarah Stewart, Gregory D. Gamble, Borislav Mihov, Lisa K. Stamp, Janine Haslett, William J. Taylor, Tony R. Merriman, Adwoa Dansoa Tabi‐Amponsah, Anne Horne, Tuhina Neogi, Tristan Pascart, Mariano Andrés, Maria‐Luisa Peral‐Garrido, Eleonora Norkuviene, Janitzia Vazquez‐Mellado, Till Uhlig, Mingshu Sun, Changgui Li, Keith J. Petrie   +19 more
wiley   +1 more source

Alternative Approaches to the Analysis of Multidimensional Contingency Tables [PDF]

Statistika: Statistics and Economy Journal, 2011
The practical analyses of interactions between categorical variables in various areas (such as public opinion research or marketing research) are often only applications of chi-square tests in two-way contingency tables. However, in many situations it is
Iva Pecáková
doaj  

Prevalence, Determinants, and Outcomes of Low Disease Activity and Remission Attainment in Patients With Systemic Lupus Erythematosus That Is Clinically Active

Arthritis Care &Research, EarlyView.
Objective This study aimed to identify in patients with systemic lupus erythematosus (SLE) with clinically active disease the attainment of frequency and determinants of Lupus Low Disease Activity State (LLDAS) and Definition of Remission in SLE (DORIS) and the frequency and determinants of flare and damage accrual after target attainment.
Yanjie Hao, Dylan Hansen, Rangi Kandane‐Rathnayake, Worawit Louthrenoo, Yi‐Hsing Chen, Jiacai Cho, Aisha Lateef, Laniyati Hamijoyo, Shue Fen Luo, Yeong‐Jian Jan Wu, Sandra Navarra, Leonid Zamora, Zhanguo Li, Sargunan Sockalingam, Yasuhiro Katsumata, Masayoshi Harigai, Zhuoli Zhang, Madelynn Chan, Jun Kikuchi, Tsutomu Takeuchi, Sang‐Cheol Bae, Fiona Goldblatt, Sean O'Neill, Kristine (Pek Ling) Ng, Annie Law, B. M. D. B. Basnayake, Nicola Tugnet, Sunil Kumar, Cherica Tee, Michael Tee, Naoaki Ohkubo, Yoshiya Tanaka, Shirley Chan, C. S. Lau, Vera Golder, Alberta Hoi, Shereen Oon, Eric Morand, Mandana Nikpour, for the Asia‐Pacific Lupus Collaboration   +39 more
wiley   +1 more source

Contingency tables with prescribed marginals [PDF]

, 2018
For an adjustment of contingency tables to prescribed marginal frequencies Deming and Stephan (1940) minimize a Chi-square expression. Asymptotically equivalently, Ireland and Kullback (1968) minimize a Leibler-Kullback divergence, where the ...
Aebi, Robert
core  

Association Between Symptomatic Knee Osteoarthritis and Target Glycemic Control in Individuals with Type 2 Diabetes

Arthritis Care &Research, Accepted Article.
Objective Knee osteoarthritis (OA) commonly affects individuals with Type 2 diabetes (T2DM) and is associated with increased risk of diabetes‐related complications. To better understand potential mechanisms, we examined the association between symptomatic knee OA and glycemic control in individuals with T2DM.
Lauren K. King, Alanna Weisman, Baiju R. Shah, Robert Goldberg, Amish Parikh, Ian Stanaitis, Vivian Hung, Rosane Nisenbaum, Abdalmohsen Almodahka, Lorraine Lipscombe, Gillian A. Hawker   +10 more
wiley   +1 more source

A New Test for Independence in 2×2 Contingency Tables

Acta Universitatis Lodziensis. Folia Oeconomica, 2017
In statistical literature there exist many tests to reveal the independence of two qualitative variables in two‑way contingency tables (CTs), in particular in 2×2 CTs. In this paper four independence tests were compared.
Piotr Sulewski
doaj   +1 more source

Enumerating contingency tables via random permanents

, 2005
Given m positive integers R=(r_i), n positive integers C=(c_j) such that sum r_i = sum c_j =N, and mn non-negative weights W=(w_{ij}), we consider the total weight T=T(R, C; W) of non-negative integer matrices (contingency tables) D=(d_{ij}) with the row
Barvinok, Alexander
core   +3 more sources

Use of a Molecular Signature Response Classifier to Inform Treatment Selection Improves Clinical Disease Activity Among Patients with Rheumatoid Arthritis Initiating a Biologic or Targeted Synthetic Disease‐Modifying Antirheumatic Drug

Arthritis Care &Research, EarlyView.
Objective We assessed the effectiveness of PrismRA to improve clinical outcomes among patients with rheumatoid arthritis (RA) initiating treatment with a biologic or targeted synthetic disease‐modifying antirheumatic drug (b/tsDMARD). Methods PrismRA incorporated 19 gene expression features and four clinical features to assess a patient's likelihood of
Fenglong Xie, Timothy Beukelman, Nicholas P. McCormick, Jeffrey R. Curtis   +3 more
wiley   +1 more source

QUANTIFICATION OF THE CATEGORIES OF DROSOPHILAS AND YEAST BY THE METHODS OF RECIPROCAL AVERAGES AND VARIANCE ANALYSIS

Pesquimat, 2014
A latent problem in two-dimensional contingency tables is to quantify the levels of categorical variables involved. In this paper we choose the nonlinear multivariate descriptive methods, Reciprocal averaging method and Variance Analysis method for ...
Doris Gómez Ticerán, Jorge Ícaro Condado Jáuregui, Liliana Huamán del Pino, Walter Roberto Acuña Montañez, Martha Gonzáles Bohórquez, Gregoria Natividad Ramón Quispe   +5 more
doaj   +1 more source