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Revista alergia México

versión On-line ISSN 2448-9190


BEDOLLA-PULIDO, Tonatiuh Ramses et al. Geographical variation of asthma prevalence among Mexican children during the COVID-19 pandemic. Rev. alerg. Méx. [online]. 2022, vol.69, n.4, pp.164-170.  Epub 25-Ago-2023. ISSN 2448-9190.


The purpose of this study was to analyze the geographic variation in the prevalence of asthma in chil dren, according to their place of residence in Mexico.


A cross-sectional analysis of the epidemiological surveillance system dataset for respiratory diseases in Mexico carried on. From 27 February to 5 November 2020, a total of 1,048,576 subjects were screened for SARS-CoV2 infection, of which 35,899 were children under 18 years of age. The strength of the association was estimated by odds ratio (OR).


Of 1,048,576 patients who attended for SARS-CoV2 infection detection, 35,899 corresponded to pediatric patients who met the study criteria. The estimated national prevalence of asthma was 3.9% (95% CI: 3.7-4.1%). The nationwide prevalence of asthma was 3.9% (95% CI: 3.7% - 4.1%); the minimum was 2.8% (Southeast region) and the maximum 6.8% (Southeast region). Compared to the South-West Region that presented the minimum prevalence at the national level, the Northwest (OR = 2.41) and Southeast (OR = 1.33) regions showed the highest risk of asthma in pediatric population.


The prevalence of asthma in children differed markedly among the different regions of Mexico; two regions, Northwest and Southeast, stood out. This study puts into context the role of the environment on the prevalence of asthma in children.

Palabras llave : Asthma; Epidemiology; Children; COVID-19; Prevalence; Cross- sectional study.

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