PRP6 ASSESSMENT OF RESPIRATORY DISEASE SEVERITY USING POSTAL QUESTIONNAIRES

Accuracy of postal questionnaires.

Dear Sir, Having recently completed the data interpretation of a postal questionnaire of 'all' Otolaryngologists in the British Isles, we read with interest the recent correspondence on the subject of the accuracy of this means of gathering information. (November 1989, 1103), and of the validity of the numbers questioned and responding. Like the correspondents, we also had great difficulty in c...

assessment of the efficiency of s.p.g.c refineries using network dea

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

Who responds to postal questionnaires?

Factors affecting response to postal questionnaires.

Epidemiological studies of chronic diseases often use data gathered individually from many persons, rather than remaining restricted to pre-recorded data. Generally this is done by personal interview, an expensive, time-consuming procedure. The increasing educational level and social consciousness of the population suggest that a carefully designed, highly objective postal questionnaire could s...

Severity Assessment of Chronic Liver Disease in Children

Introduction: Chronic liver disease and cirrhosis are the most important causes of growth failure, morbidity and mortality in children. Cirrhosis consists of a variety of congenital, genetic, metabolic, and infectious causes in children. Models for predicting of chronic liver disease severity, survival, and transplantation are useful for decision-making as well as medical interventions. The mo...