Prevalence of symptoms of asthma, rhinitis and eczema in 13‐ to 14‐year‐old children in Africa: the International Study of Asthma and Allergies in Childhood Phase III
- 8 February 2007
- Vol. 62 (3), 247-258
- https://doi.org/10.1111/j.1398-9995.2007.01325.x
Abstract
Phase I of the International Study of Asthma and Allergies in Childhood has provided valuable information regarding international prevalence patterns and potential risk factors in the development of asthma, allergic rhinoconjunctivitis and eczema. However, in Phase I, only six African countries were involved (Algeria, Tunisia, Morocco, Kenya, South Africa and Ethiopia). Phase III, conducted 5–6 years later, enrolled 22 centres in 16 countries including the majority of the centres involved in Phase I and new centres in Morocco, Tunisia, Democratic Republic of Congo, Togo, Sudan, Cameroon, Gabon, Reunion Island and South Africa. There were considerable variations between the various centres of Africa in the prevalence of the main symptoms of the three conditions: wheeze (4.0–21.5%), allergic rhinoconjunctivitis (7.2–27.3%) and eczema (4.7–23.0%). There was a large variation both between countries and between centres in the same country. Several centres, including Cape Town (20.3%), Polokwane (18.0%), Reunion Island (21.5%), Brazzaville (19.9%), Nairobi (18.0%), Urban Ivory Coast (19.3%) and Conakry (18.6%) showed relatively high asthma symptom prevalences, similar to those in western Europe. There were also a number of centres showing high symptom prevalences for allergic rhinoconjunctivitis (Cape Town, Reunion Island, Brazzaville, Eldoret, Urban Ivory Coast, Conakry, Casablanca, Wilays of Algiers, Sousse and Eldoret) and eczema (Brazzaville, Eldoret, Addis Ababa, Urban Ivory Coast, Conakry, Marrakech and Casablanca).Keywords
This publication has 21 references indexed in Scilit:
- Is the hygiene hypothesis still a viable explanation for the increased prevalence of asthma?Allergy, 2005
- Phase II of the International Study of Asthma and Allergies in Childhood (ISAAC II): rationale and methodsEuropean Respiratory Journal, 2004
- Domestic risk factors for wheeze in urban and rural Ethiopian childrenQJM: An International Journal of Medicine, 2004
- Asthma and the westernization ‘package’International Journal of Epidemiology, 2002
- Worldwide variations in the prevalence of asthma symptoms: the International Study of Asthma and Allergies in Childhood (ISAAC)European Respiratory Journal, 1998
- Variations in the prevalence of respiratory symptoms, self-reported asthma attacks, and use of asthma medication in the European Community Respiratory Health Survey (ECRHS)European Respiratory Journal, 1996
- International Study of Asthma and Allergies in Childhood (ISAAC): rationale and methodsEuropean Respiratory Journal, 1995
- Prevalence of asthma in Rhodesian Africans.Thorax, 1980
- Asthma and IgE levels in rural and urban communities of The GambiaClinical and Experimental Allergy, 1975