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  • Title: Predictors of exacerbations of asthma and COPD during one year in primary care.
    Author: Al-ani S, Spigt M, Hofset P, Melbye H.
    Journal: Fam Pract; 2013 Dec; 30(6):621-8. PubMed ID: 24115012.
    Abstract:
    AIMS: To investigate the incidence of asthma and chronic obstructive pulmonary disease (COPD) exacerbations in primary care during one year and to identify risk factors for such events. METHODS: The study was carried out at seven general practice offices in Norway. Patients aged 40 years or more registered with a diagnosis of asthma and/or COPD the previous 5 years were included. After a baseline examination, the participants consulted their GP during exacerbations for the following 12 months. A questionnaire on exacerbations during the follow-up year was distributed to all. Univariable and multivariable logistic regression was performed to determine predictors of future exacerbations. RESULTS: Three hundred and eighty patients attended the baseline examination and complete follow-up data were retrieved from 340 patients. COPD as defined by forced expiratory volume in the first second of expiration/forced vital capacity (FEV1/FVC) < 0.7, was found in 132 (38.8%) patients. One hundred and fifty-nine patients (46.8%) experienced one exacerbation or more and 101 (29.7%) two exacerbations or more. Patients who had an exacerbation treated with antibiotics or systemic corticosteroids or leading to hospitalization the year before baseline (N = 88) had the highest risk of getting an exacerbation during the subsequent year (odds ratio 9.2), whether the FEV1/FVC was below 0.7 or not. Increased risk of future exacerbations was also related to age ≥ 65 years and limitations in social activities, but not to the FEV1. CONCLUSIONS: The study confirms that previous exacerbations strongly predict future exacerbations in patients with COPD or asthma. Identification and a closer follow-up of patients at risk of such events could promote earlier treatment when necessary and prevent a rapid deterioration of their condition.
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