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  • Title: [Sensitivity and specificity of a questionnaire about respiratory symptoms similar to asthma].
    Author: Ochoa Jiménez LG, Rico Méndez FG, Escobedo Arenas G, Cabrera Ruiz MA.
    Journal: Rev Alerg Mex; 2001; 48(1):9-14. PubMed ID: 11398371.
    Abstract:
    INTRODUCTION: Questionnaires are an epidemiological instrument to detect patients with asthma. MATERIALS AND METHODS: Worldwide standardized questionnaires were selected, taking the most important points for making the diagnosis of asthma. A questionnaire was applied to outpatients who attend to pulmonary disease service. The answers were compared with a "gold standard" proposed, consisted in clinical screening and pulmonary function tests. STATISTICAL ANALYSIS: Kappa coefficient, sensitivity, specificity and predictive values were obtained, with intervals of confidence of 95%. RESULTS: The questionnaires were applied to 120 patients, 70.83% women, the answering percentage was 99%. Mean age was 32 years with a range of 24-40. In 62.5% patients there was already a previous diagnosis of asthma. Positive Familial history was present in 65.83, cough in 85%, dyspnea in 80.83%, sneezes in 53.33% and wheezes in 77.5%. The was of kappa coefficient for previous medical diagnosis 0.96%, followed by positive familial history, wheezes and cough in 0.90%. The greatest specificity was for wheezes, dyspnea and previous medical diagnosis. The greatest specificity for previous medical diagnosis was wheezes and sneezes. CONCLUSIONS: The use of questionnaires for respiratory symptoms similar to asthma can be an option to detect groups of high risk.
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