Developmental studies of mental disorders based on epidemiological data are often based on cross-sectional retrospective surveys. Under such designs, observations are right-censored, causing underestimation of lifetime prevalences and correlations, and inducing bias in latent trait models on the...

Objective: Since reproductibility of results is a basic prerequisite of health status measures for its use in prospective and evaluative studies, the reliability of the Spanish version of the Nottingham Health Profile (NHP), a multi-dimensional perceived health status measure, was assessed in a...

The patient's perspective about waiting for elective surgery is an important consideration in the management of waiting lists, yet it has received little attention to date. This study was undertaken to assess the acceptability of personal waiting times from the perspective of patients, and to...

Although worse Health-Related Quality of Life (HRQL) among women has been widely described, it remains unclear whether this is due to differential reporting patterns, or whether there is a real difference in health status. The objective of this study was to evaluate to what extent gender...

The present paper has as goal the analysis of the urban sprawl phenomenon, from a planetary scale, assuming the hypothesis that this is an unsustainable process. It aims to demonstrate that what were initially a way of human settlement characteristic of many civilizations (northern and eastern...

The use of spatial interaction models based on gravity criteria have been widely applied in the study of urban processes. Although the original perception about the similarity between the social phenomena and physics was first suggested by Carey in the middle of the 19th Century, the formal...