Bayesian reasoning with emotional material in patients with schizophrenia.

Delusions are one of the most classical symptoms described in schizophrenia. However, despite delusions are often emotionally charged, they have been investigated using tasks involving non-affective material, such as the Beads task. In this study we compared 30 patients with schizophrenia experiencing delusions with 32 matched controls in their pattern of responses to two versions of the Beads task within a Bayesian framework.

Five levels of performance and two subscales identified in the computer-vision symptom scale (CVSS17) by Rasch, factor, and discriminant analysis.

Purpose: To quantify the levels of performance (symptom severity) of the computer-vision symptom scale (CVSS17), confirm its bifactorial structure as detected in an exploratory factor analysis, and validate its factors as subscales.

Methods: By partial credit model (PCM), we estimated CVSS17 measures and the standard error for every possible raw score, and used these data to determine the number of different performance levels in the CVSS17. In addition, through discriminant analysis, we checked that the scale's two main factors could classify subjects according to these determined levels of performance.

The Computer-Vision Symptom Scale (CVSS17): development and initial validation.

Purpose: To develop a questionnaire (in Spanish) to measure computer-related visual and ocular symptoms (CRVOS).

Methods: A pilot questionnaire was created by consulting the literature, clinicians, and video display terminal (VDT) workers. The replies of 636 subjects completing the questionnaire were assessed using the Rasch model and conventional statistics to generate a new scale, designated the Computer-Vision Symptom Scale (CVSS17).

[Ten-year incidence of fatal and non-fatal myocardial infarction in the elderly population of Madrid].

Introduction And Objectives: To determine the incidence of and mortality due to myocardial infarction and coronary heart disease in the elderly population of Madrid, Spain.

Methods: The study involved a population-based cohort of 1297 individuals aged over 64 years without cardiovascular disease who were recruited in 1995. All cases of fatal and non-fatal myocardial infarction recorded up until December 2004 were investigated and classified using WHO-MONICA (World Health Organization-Multinational MONItoring of trends and determinants in CArdiovascular disease) criteria.

[Epidemiology of lipid profile of the Spanish elderly population: the EPICARDIAN study].

Background And Objective: The aim of this study was to describe the lipid profile, the levels of serum total cholesterol (TC), LDL cholesterol (C-LDL), HDL cholesterol (C-HDL) and triglyceride (TG), to compare these levels between geographical areas and to estimate the prevalence of dyslipidemia in elderly residents (65 years and older) from urban and rural areas of Spain.

Patients And Method: Epidemiological, observational, multicentre study of Spanish elderly people residents (>or= 65 years old) of 3 communities in 3 Spanish regions: Arévalo (Avila) and Begonte (Lugo) as rural areas and Lista (Central Madrid) as urban area. Stratified randomized sample by age and sex from population census of each area.