Results 91 to 100 of about 3,777,055 (264)

Latent class compositions.

, 2019
Latent class compositions.
Alexander P. Landry (6725738), Rashida Haq (6725741), Michael D. Cusimano (396060), Zsolt Zador (3157953)   +3 more
core   +1 more source

Internalizing Symptoms and Their Impact on Patient-Reported Health-Related Quality of Life and Fatigue among Patients with Craniopharyngioma During Proton Radiation Therapy

Children
Objective: The aim of this study was to describe fatigue, health-related quality of life (HRQOL) and brain tumor-associated symptoms after surgical resection and during proton radiotherapy, using latent class analysis (LCA), and to determine if there is ...
Belinda N. Mandrell, Yian Guo, Yimei Li, Donna Hancock, Mary Caples, Jason M. Ashford, Thomas E. Merchant, Heather M. Conklin, Valerie Mc. Crabtree   +8 more
doaj   +1 more source

AN ALTERNATIVE TO CLASSICAL LATENT CLASS MODELS SELECTION METHODS FOR SPARSE BINARY DATA: AN ILLUSTRATION WITH SIMULATED DATA

Revista de Matemática: Teoría y Aplicaciones, 2017
Within the context of a latent class model with manifest binary variables, we propose an alternative method that solves the problem of estimating empirical distribution with sparse contingency tables and the chi-square approximation for goodness-of-fit ...
Carlomagno Araya Alpizar
doaj   +1 more source

Patients improve, patterns persist: longitudinal stability of RA joint involvement patterns

Arthritis Care &Research, Accepted Article.
Objective Rheumatoid arthritis is a heterogeneous disease. Data‐driven approaches, from synovial histology to joint involvement patterns (JIPs), have sought to define clinically meaningful subgroups. Whether these subgroups represent stable phenotypes or transient disease states remains unclear.
Tjardo Maarseveen, Yasuo Nagafuchi, Kristina Lend, Seyam Alemyar, Herman Kasper Glas, Gerdur Gröndal, Bjorn Gudbjornsson, Espen A. Haavardsholm, Kim Hørslev Petersen, Jon Lampa, Merete Lund Hetland, Dan Nordström, Mike Nurmohamed, Mikkel Østergaard, Anna Rudin, Marte Schrumpf Heiberg, Tuulikki Sokka‐Isler, Till Uhlig, Josien Veris‐van Dieren, Ronald van Vollenhoven, Tom Huizinga, Marcel JT Reinders, Sytske Anne Bergstra, Erik van den Akker, Rachel Knevel   +24 more
wiley   +1 more source

Approximating a similarity matrix by a latent class model: A reappraisal of additive fuzzy clustering [PDF]

, 2009
Let Q be a given n×n square symmetric matrix of nonnegative elements between 0 and 1, similarities. Fuzzy clustering results in fuzzy assignment of individuals to K clusters.
Braak, C.J.F., ter, Kourmpetis, Y.I.A., Kiers, H.A.L., Bink, M.C.A.M.   +3 more
core   +1 more source

Multinomial Logit Models with Continuous and Discrete Individual Heterogeneity in R: The gmnl Package

Journal of Statistical Software, 2017
This paper introduces the package gmnl in R for estimation of multinomial logit models with unobserved heterogeneity across individuals for cross-sectional and panel (longitudinal) data.
Mauricio Sarrias, Ricardo Daziano
doaj   +1 more source

Unsupervised Machine Learning Identifies Shared Biomechanical and Clinical Variation in Individuals with Knee Osteoarthritis and High Body Mass Index

Arthritis Care &Research, EarlyView.
Objective High body mass index (BMI ≥ 27 kg/m2) and aberrant gait biomechanics are primary risk factors for knee osteoarthritis (KOA), yet the specific loading patterns linked to clinical disease features remain unclear. Unsupervised machine learning (ML) was used to identify vertical ground reaction force (vGRF) waveform modes of variation and ...
Ashley N. Buck, J. Elyse Borgert, Hyeon Lee, Liubov Arbeeva, Yvonne M. Golightly, Richard F. Loeser, Leigh F. Callahan, Stephen P. Messier, Brian Pietrosimone, Amanda E. Nelson, James S. Marron   +10 more
wiley   +1 more source

A latent class approach to investigating consumer demand for genetically modified staple food in a developing country: The case of GM bananas in Uganda [PDF]

genetically modified bananas, Consumers, Choice experiment, latent class model, preference heterogeneity, Science and technology, Genetic resources, Genetically engineered crops, Genetically modified crops,
Kikulwe, Enoch, Birol, Ekin, Falck-Zepeda, José, Wesseler, Justus   +3 more
core  

Health behavior profiles and association with mental health status among US active-duty service members

Frontiers in Public Health
IntroductionThis study investigated the clustering of health behaviors among US active duty servicemembers (ADSM) into risk profiles and explored the association between these profiles with ADSM sociodemographic characteristics and mental health status ...
Bolanle Olapeju, Zoé Mistrale Hendrickson, Zoé Mistrale Hendrickson, Patrice Shanahan, Omar Mushtaq, Anwar E. Ahmed   +5 more
doaj   +1 more source

Erratum to Andruff, Carraro, Thompson, Gaudreau, and Louvet (2009): Latent Class Growth Modelling: A tutorial [PDF]

Tutorials in Quantitative Methods for Psychology, 2013
An error was found in Andruff, Carraro, Thompson, Gaudreau, and Louvet (2009). Here we identify the error and present a correction.
Heather Andruff, Natasha Carraro, Amanda Thompson, Patrick Gaudreau, Benoit Louvet   +4 more
doaj