##article.abstract##
Few data exist on the prevalence of asthma among Nigerian adults. The aim of this study was to determine the prevalence of bronchial asthma among adults in Ilorin, Nigeria. This study was conducted in Ilorin east and west local governments of Kwara State, Nigeria from October 2005 to April 2006. We recruited 810 subjects by the cluster sampling method. The European Community Respiratory Health Survey (ECRHS) asthma-screening questionnaire was used to collect data. The peak expiratory flow rate (PEFR), force expiratory volume in one second (FEV1 ,), force vital capacity (FVC) and FEV1 / FVC ratio were measured. Subjects with FEV1 < 80% of predicted, FEV1 /FVC < 80%, or one asthma symptom were subjected to PEF variability testing over the course of one week. Asthma was diagnosed in subjects with either two or more recurrent asthma symptoms (current asthma) or physician-diagnosed asthma, as well as PEF variability of >10%. The prevalence of bronchial asthma was 15.2%, the male to female ratio was nearly 2:1, and the mean age of the asthmatics was 32 10.12 years. Current asthma and physiciandiagnosed asthma were 12.7% and 2.0%, respectively. The most common complaint reported by the asthmatics was wheezing. The prevalence of bronchial asthma among adults in Ilorin in North Central Nigeria was high. It is important to increase awareness of the disease in this region.
Keywords: Prevalence, asthma, adults, Ilorin, Nigeria
Résumé
Peu de données existent sur la prévalence de l’asthme parmi les adultes Nigérians. Le but de cette étude était de déterminer la prévalence de l’asthme bronchiale parmi les adultes à Ilorin au Nigeria. Cette étude était conduite a l’Est d’Ilorin et au gouvernement local Ouest dans l’état de Kwara au Nigeria d’octobre 2005 à avril 2006. Nous avons recruté 810 sujets par la méthode de groupe d’échantillons. L’étude de la communauté Européenne de Sante respiratoire par un questionnaire sur le test d’asthme était pour collecter les données. Le pic du taux d’expiration, le volume de la force expiratoire en une seconde (VFE 1), la capacité de force vitale (CFV) et le ratio VFE 1/CFV étaient mesurés. Les sujets avec VFE 1<80% de prédiction, VFE 1/CFV< 80%, ou un symptôme d’asthme étaient sujettés à la variabilité du test de PEF pendant une semaine. L’asthme était diagnostiqué aux sujets avec deux ou plusieurs symptômes d’asthme ou l’asthme diagnostiqué par le médecin bien qu’une variabilité du PEF de > 10%. La prévalence de l’asthme bronchiale était de 15.2%, une proportion male/femelle de 2:1 et une moyenne d’âge chez les asthmatiques de 32_+ 10.12 ans. L’asthme courant et diagnostiqué étaient de 12.7% et 2.0% respectivement. La plainte la plus commune était d’éternuer. La fréquence de l’asthme bronchiale parmi les adultes à nord-Ilorin était élevée. Il est important d’accroitre la campagne de sensibilisation de cette maladie dans la région.
Correspondence: Dr. O.O. Desalu, Department of Medicine, University of Ilorin Teaching Hospital, PMB 1459, Ilorin, Nigeria. E-mail: femuy1967@yahoo.co.uk
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