Prevalence of asthma in Rhodesian Africans.

Cookson, John; Makoni, G

doi:10.1136/thx.35.11.833

Cited by 15 publications

(3 citation statements)

References 20 publications

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“…The overall prevalence of asthma was 1.40%, ranging between 1.20% in those under 20 years of age and 1.57% in adults 2. Similar results were obtained in another study that analyzed the prevalence of childhood asthma in Southern Africa, in 1977 3.…”

Section: Prevalence Rates Of Respiratory Allergic Diseasessupporting

confidence: 82%

Socio-epidemiological Aspects of Respiratory Allergic Diseases in Southern Africa

Taborda-Barata

Potter

2012

World Allergy Organization Journal

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The prevalence of respiratory allergic diseases has been increasing in Southern Africa both in urban and in rural environments. Various factors may contribute toward this situation, namely, exposure to aeroallergens, such as grass pollens and house dust mites. However, other irritant environmental triggers, such as exposure to tobacco smoke and certain indoor and outdoor fumes, may also play a relevant part. Furthermore, certain parasitic and mycobacterial infections may act as allergic disease risk modifiers, although such an influence should be confirmed. Finally, certain cultural and socioeconomic factors may also influence accessibility to healthcare and adherence to treatment of these diseases.

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Section: Prevalence Rates Of Respiratory Allergic Diseasessupporting

confidence: 82%

Socio-epidemiological Aspects of Respiratory Allergic Diseases in Southern Africa

Taborda-Barata

Potter

2012

World Allergy Organization Journal

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“…The high burden of infectious diseases and particularly tuberculosis, AIDS and malaria in Sub‐Saharan African countries where resources are scarce, has meant that asthma has not been considered as a health priority by governments, research funders and researchers. In addition, previous studies in Africa (1–11), based on limited and noncomparable methods, have generally indicated that asthma prevalence was relatively low in the majority of countries. The first random population survey conducted in adults using the same methodology within several centres in Europe and two centres in developing countries (Bombay and Algeria) showed large variation of asthma prevalence with the highest prevalence in industrialized countries.…”

mentioning

confidence: 99%

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

Aït-Khaled

Odhiambo²,

Pearce

et al. 2007

Allergy

207

156

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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).

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“…[8] One of the first prevalence studies on asthma in Africa was a questionnaire-based study performed in Rhodesia (now Zimbabwe) in 1975, where symptoms were assessed in 9 287 participants older than 5 years. [9] Asthma prevalence of 1.6% in adults was similar to that of high-income countries (HICs) but was lower in children and adolescents <20 years, at 1.2%. The authors hypothesised that the relative rarity of childhood asthma was due to a protective effect by parasitic infestation.…”

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confidence: 77%

A historical overview of childhood asthma in southern Africa: Are we there yet?

Mphahlele

Masekela

2021

AJTCCM

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Background. The prevalence of asthma, the most common respiratory disease in children, has increased in many low- and middle-income countries (LMICs), particularly in Africa. Despite poor infrastructure and limited resources, researchers in southern Africa have sought to determine the prevalence of childhood asthma, with variable results reflecting actual differences as much as methodological limitations and biases. Objective. To collate and report findings from studies on the epidemiology of childhood asthma in southern Africa. Method. A review of the literature was undertaken. Results. The prevalence of childhood asthma in southern Africa is variable but has increased over the last four decades, particularly in South Africa (3.17% to 21.29%). Methods used to assess the burden of asthma have been in the form of questionnaires, bronchial hypersensitivity provocation tests, lung function measurement and fractional exhaled nitric oxide (FENO). Conclusion. The prevalence of childhood asthma is increasing in rural and urban areas in southern Africa. Research collaboration driven by a better understanding of the heterogeneous nature of asthma can improve challenges faced in evaluating the burden of asthma in African countries

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Prevalence of asthma in Rhodesian Africans.

Cited by 15 publications

References 20 publications

Socio-epidemiological Aspects of Respiratory Allergic Diseases in Southern Africa

Socio-epidemiological Aspects of Respiratory Allergic Diseases in Southern Africa

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

A historical overview of childhood asthma in southern Africa: Are we there yet?

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