[Factors associated with asthma control in primary care patients: the CHAS study]

Francisco Javier González Barcala, Ramón de la Fuente-Cid, Rosa Alvarez-Gil, Mónica Tafalla, Javier Nuevo, Francisco Caamaño-Isorna
Archivos de Bronconeumología 2010, 46 (7): 358-63

BACKGROUND: Asthma control is inadequate in all populations studied to date, leading to a major part of the cost of the disease. The aim of our study was to evaluate the prevalence of uncontrolled asthma in primary care patients and identify the associated factors.

METHODS: We carried out a cross-sectional study of the population of primary care asthmatic patients over 18 years old in Spain (n=2159). Asthma control was measured with the Asthma Control Questionnaire (ACQ). The sociodemographic variables and treatment compliance were measured using a questionnaire. We built logistic-regression models using Asthma control, a dichotomous variable generated from ACQ score.

RESULTS: The prevalence of uncontrolled asthma was 63.9%. Treatment with oral corticosteroids (OCS) (OR=6.55), greater asthma severity (OR=3.11), presence of a distressing event (OR=2.44), lower significance given to treatment compliance (OR=1.66) and living in a rural area (OR=1.29) are associated with uncontrolled asthma. On the contrary, sex, age, obesity, smoking, alcohol intake and educational level had no effect on asthma control.

CONCLUSIONS: In Spain asthma is still uncontrolled and some factors leading to this situation appear to be modifiable by the health system.

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