Prevalence of asthma in North Africa: the Asthma Insights and Reality in the Maghreb (AIRMAG) study

Nafti, S.; Taright, S.; Ftouh, M. El; Yassine, N.; Benkheder, Ali; Bouacha, H.; Fakhfakh, Hachemi; Ali-Khoudja, Moufida; Texier, Nathalie; Hasnaoui, Abdelkader El

doi:10.1016/s0954-6111(09)70022-8

Cited by 54 publications

(41 citation statements)

References 23 publications

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“…It may be noted that the prevalence rate of asthma in our population was situated in the low range of those observed in the world, which vary from quite low values (2-4%) in Asian countries to very high ones (15-20%) in the United Kingdom, Canada, Australia, New Zealand, and other developed countries (15). However, it is higher than that reported in the Maghreb by the Asthma Insights and Reality in the Maghreb (AIRMAG) study (5): for instance, an average value of 4% was reported in less than 16 year-old children, living in Algeria. The authors signaled that the highest rates were observed in the densely populated coastal strip around Algiers and the lowest in the desert of the South.…”

Section: Prevalence Rate and Strength Of Eibcontrasting

confidence: 48%

Prevalence Rate of Exercise-Induced Bronchoconstriction in Annaba (Algeria) Schoolchildren

et al. 2011

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Section: Prevalence Rate and Strength Of Eibcontrasting

confidence: 48%

Prevalence Rate of Exercise-Induced Bronchoconstriction in Annaba (Algeria) Schoolchildren

et al. 2011

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“…But in a study in Algeria, large differences were observed in the prevalence of asthma between age groups, this being highest in children aged under 16 and in the oldest group (>54 years). [23] Although the mechanism underlying this difference is unclear, we have a bold vision that adult AD may have a different etiology from pediatric/adolescent AD, it is worth studying and analyzing.…”

Section: Discussionmentioning

confidence: 99%

Prevalence and clinical features of adult atopic dermatitis in tertiary hospitals of China

Wang

Shi

et al. 2017

Medicine

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The prevalence of atopic dermatitis (AD) has increased substantially. Previous studies have focused mostly on pediatric patients, while epidemiological investigation on adult AD has been very limited.The aim of this study was to determine the prevalence and clinical features of adult AD in outpatients with dermatitis and eczema in China mainland.A multicenter cross-sectional study was conducted among outpatients with eczema or dermatitis from 39 tertiary hospitals of 15 provinces in China from July 1 to September 30, 2014.Of 8758 patients, 407 were adult AD. Compared with adults with other types of dermatitis, the mean age (41.8 ± 14.3 vs 42.04 ± 15.38 years, P < 0.05) and onset age (35.2 ± 11.2 vs 39.2 ± 14.0 years, P < 0.001) of adult AD were younger, and mean disease duration was longer (5.3 ± 7.1 vs 2.8 ± 4.9 years, P < 0.001). About 53.3% adult AD involved 3 or more body locations, higher than adults with other types of dermatitis (34.4%, P < 0.001), but lower than those with pediatric and adolescent AD (73.8%, P < 0.001). History of asthma (19.2% vs 6.9%, P < 0.001) or allergic conjunctivitis (21.9% vs 14.9%, P < 0.05) was more common in adult AD than pediatric/adolescent AD. Suspected bacterial infection was more frequently in adult AD than adults with other types of dermatitis (24.3% vs 14.6%, P < 0.001) and pediatric/adolescent AD (24.3% vs 14.9%, P < 0.001). More severe itching was observed in 31.4% of adult AD, higher than that of adults with other types of dermatitis (15.4%, P < 0.001), whereas similar to that of pediatric/adolescent AD (28.7%, P > 0.05). The highest (8.7%) and lowest prevalence (3.7%) of adult AD were in 25°N to 30°N and 35°N to 40°N latitude region.A substantial part of adult outpatients with eczema or dermatitis is adult AD. Middle age, more body location involvement, more suspected bacterial infection, and severe itching are the main clinical feathers of adult AD. Geographical environment and economic situation work in synergy to adult AD.

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“…This phenomenon may confer the characteristics of allergic diseases. A study in Algeria has observed significant differences in the prevalence of asthma between different age groups, the highest in children aged <16 and in the oldest group (>54 years) [19]. Further investigation is required to explore mechanisms and significance of this phenomenon.…”

Section: Discussionmentioning

confidence: 99%

Prevalence and Clinical Features of Atopic Dermatitis in China

Wang

Zhao

et al. 2016

BioMed Research International

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Background. The epidemiology of atopic dermatitis (AD) in Chinese outpatients is yet to be clarified. Objectives. To investigate population-based prevalence and clinical features of AD in Chinese outpatients. Methods. A multicenter cross-sectional study was conducted in outpatients with eczema or dermatitis from 39 tertiary hospitals in 15 provinces. Results. This study included 682 patients diagnosed with AD, with the mean age of 28.8 ± 20.1 years and the median course of 5.3 ± 6.9 years. AD patients had more severe itching (30.4% versus 13.8%, p < 0.001) and clinically suspected bacterial infection (21.7% versus 16.1%, p < 0.001) than those of other types of dermatitis. Older patients were more susceptible to have a history of flexion dermatitis (p < 0.001), bacterial infection (p = 0.005), and severe itching (p < 0.001). Outpatients with clinically suspected bacterial infection had 3.53-fold increased risk of AD than those without it (p < 0.001). The morbidity rate of AD in the (20–25°N) region is 2.86 times higher than that in the (40–45°N) region [OR (95% CI): 0.352 (0.241–0.514), p < 0.001]. Conclusions. AD is characterized by unique clinical/demographic features. Bacterial infection and latitude region may have an impact on the incidence of AD in China.

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Prevalence of asthma in North Africa: the Asthma Insights and Reality in the Maghreb (AIRMAG) study

Abstract: The prevalence of asthma in the Maghreb countries is moderate, but its impact is high.

Cited by 54 publications

References 23 publications

Prevalence Rate of Exercise-Induced Bronchoconstriction in Annaba (Algeria) Schoolchildren

Prevalence Rate of Exercise-Induced Bronchoconstriction in Annaba (Algeria) Schoolchildren

Prevalence and clinical features of adult atopic dermatitis in tertiary hospitals of China

Prevalence and Clinical Features of Atopic Dermatitis in China

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