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Biomedical subjects

A Ràfols Crestani

Publications and source records attributed to A Ràfols Crestani.

3 recordsLinked to original sources
PubMed2000

[Prevalence of Helicobacter pylori infection in primary health care].

OBJECTIVES: To find the prevalence of Helicobacter pylori (Hp) infection in the population as a whole. To assess its relationship with the associated factors described in other studies. DESIGN: Transversal study of an urban population of 20,000. PARTICIPANTS: Between 14 and 80 years old. Randomised sampling of the computerised records (640 clinical histories). Necessary sample n = 384 (alpha = 0.05, prior prevalence = 50%, precision 0.05). MEASUREMENTS: Breath test with urea marked (13C), age, sex, alcohol and tobacco consumption, social class and dyspepsia and/or gastro-duodenal pathology. RESULTS: 123 exclusions. 122 losses (23%). 397 people screened, 43.6% male. Average age: 42.6. 41.6% consumed alcohol. 30.5% smoked. Prevalence of dyspepsia, gastritis, gastric ulcer and duodenal ulcer, 14%, 2.8%, 2.8% and 2.0%, respectively. Hp prevalence: 56.1% (95% CI, 51.2-60.1). There were no significant differences between prevalence of Hp+ and sex, dyspepsia, peptic ulcer history, gastritis, alcohol consumption and tobacco consumption. Greatest prevalence of Hp+ in over-70s (73%). Significant linear tendency between presence of Hp+ and age (p < 0.05) and low social class (p < 0.05). The logistic regression analysis found a statistically significant relationship only between the presence of H. pylori and age and social class. CONCLUSIONS: Prevalence was similar to that in other studies. The relationship between low social class and age and greater Hp prevalence was confirmed. Dyspepsia is not a justification for empirical treatment of Hp. Patients with and without the infection must be followed to evaluate morbidity longitudinally.

Adolescent↗
PubMed1998

[Overattendance at primary care: a study of psychosocial factors].

OBJECTIVE: To determine the effect of various psychological and social factors--family function, social support, psychological malaise and social class--on frequency of attendance. DESIGN: Study with cases and controls. SETTING: Health Districts Girona-3 and La Bisbal. PARTICIPANTS: Criteria for inclusion: being older than 14, being on a list as a user, and having been seen at least once during the study period. The person over-attending is defined as someone attending 7 or more times in a year. The normal attender attends less than 7 times. The sample was 441 patients (209 cases and 232 controls). MEASUREMENTS AND MAIN RESULTS: The Smilkestein family Apgar and the DUKE-UNC social support questionnaires, and the Goldberg anxiety and depression scale, were administered. Social class was defined according to the job of the head of the family. Statistical analysis was undertaken in two steps: firstly, bivariate analysis; and second, multivariate. The social support and age variables were related to frequency of attendance: they explained 8.1% of it (through multiple regression). Depression increased by between 1.21 and 2.58 the risk of over-attending and explained 10.53% of the variability of over-attendance, in line with the logistical regression analysis. CONCLUSIONS: The psychological and social variables studied fail to explain most of the variability. We should demystify the importance of psychological and social factors in the use of health resources.

Adolescent↗