Heterogeneity in the Relationship Between the Time Tradeoff and Short Form-36 for HIV-Infected and Primary Care Patients

Dados Bibliográficos

ID9103559
AutoresJan Roelf Bult (University of Mons, autor correspondente), M G Myriam Hunink (0000-0002-2942-2798, University Medical Center Groningen), Joel Tsevat (0000-0002-0413-8969, Cincinnati VA Medical Center), Milton C Weinstein (Massachusetts Department of Public Health)
Ano1998
Volume36
Fascículo4
Páginas523-532
Data de publicação1998-04-01
Peer ReviewedSim
Open AccessNão
TipoARTICLE
PeriódicoMedical Care (JOURNAL)
Identificadores do periódicoISSN: 0025-7079 • E-ISSN: 1537-1948
EditoraOvid Technologies (Wolters Kluwer Health) (PUBLISHER)
DOI10.1097/00005650-199804000-00008
PMID9544592
OpenAlexW2318467460
IdiomaEN
Citações recebidas9
Referências citadas14

OBJECTIVES: Evidence in the literature suggests that the overall correlation between descriptive and valuational measures of health are weak to moderate. In this study, the relationship between descriptive health status measures, obtained using the Short-Form 36, and health values, measured with the time tradeoff, was explored. METHODS: Two groups of patients matched for age and gender were interviewed. One group comprised 139 human immunodeficiency virus (HIV)-infected patients; the other group comprised 124 primary care patients. The relationship between the SF-36 and the time tradeoff was estimated, assuming homogeneity across patients, using multiple regression analysis. Subsequently, the relationship was examined assuming heterogeneity across patients and using the expectation maximization algorithm in a maximum likelihood context (latent class analysis). RESULTS: Four classes, representing 47%, 13%, 8%, and 32% of the population, respectively, were found. The overall percentage of variation explained under the assumption of a homogeneous relationship was only 33% as compared with 85% when heterogeneity was accounted for. Only three characteristics (educational level, employment status, and the SF-36 social functioning score) sufficed to generate a nearly perfect classification of the patients. CONCLUSIONS: Heterogeneity across subjects should be taken into account in describing the relationship between health values and health status dimensions

Biology · Combinatorics · Context (archaeology) · Correlation · Descriptive statistics · Environmental health · Homogeneity (statistics) · Homogeneous · Human immunodeficiency virus (HIV) · Latent class model · Population · Regression analysis · Statistics · Chronic Disease Management Strategies · Demography · Frailty in Older Adults · Health Systems, Economic Evaluations, Quality of Life · Immunology · Mathematics · Medicine · Psychology