Blas J. Galván González

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STUDY OBJECTIVE To understand the context for tobacco smoking in young adolescents, estimating the effects of individual, family, social, and school related factors. DESIGN Cross sectional analysis performed by multilevel logistic regression with pupils at the first level and schools at the second level. The data came from a stratified sample of students(More)
The consumption of tobacco has become by far the main avoidable cause of disease and premature death in Spain. There is a trend towards picking up the tobacco habit at an earlier age for both males and females. The number of women smokers is rising, particularly in the younger age groups (45% of women between the ages of 16 and 22 claim to be smokers)(More)
A prospective study was conducted with 430 new depot medroxyprogesterone acetate (DMPA) acceptors to estimate continuation rates and investigate factors associated with length of use. Data were collected on services received and sociodemographic characteristics of participants. Women were enrolled over the course of 1 year and were followed for up to 13(More)
The aim of this study was to establish the prevalence of H. Pylori infection in patients with chronic gastroduodenal pathology, who were treated in the gastroenterology units of four hospitals located in the Federal Capital and its neighbouring areas. 398 patients were studied by means of clinical assessment and epidemiology data. Upper endoscopy was(More)
OBJECTIVES Childhood obesity is a risk factor for non-alcoholic fatty liver disease and poses important public health issues for children. Racial differences in alanine aminotransferase (ALT) levels among children have not been described. This study aimed to identify racial differences in upper limit normal (ULN) ALT levels and evaluate the effect of(More)
The following case is a 69-year-old woman with a presumptive diagnosis of adenocarcinoma in transverse colon, which was diagnosed by pathology as a mixed carcinoid-adenocarcinoma tumor after surgery. We have found very few cases published of this type of tumor in the colon (around 20) but not cases in the transverse colon. We discuss in the following report(More)
BACKGROUND Patients with psoriatic arthritis (PsA) experience functional impairment and reduced quality of life, and thus patient global assessment in PsA is explained mainly by the physical, but also by the psychological, aspect of the disease. To assess the prevalence of minimal disease activity (MDA) in Spanish patients with PsA, we examined their(More)
Study objective: To understand the context for tobacco smoking in young adolescents, estimating the effects of individual, family, social, and school related factors. Design: Cross sectional analysis performed by multilevel logistic regression with pupils at the first level and schools at the second level. The data came from a stratified sample of students(More)