TABLE 1

Estimated asthma prevalence (%) among patients with coronavirus disease 2019 (COVID-19) in comparison with the general population asthma prevalence in various countries [1327, 38, 46]

CountryNational asthma prevalence (%)Asthma prevalence among SARS-CoV-2 positive patients (%)
China∼1.5–6.5∼1–1.5
USA∼8∼10–18
UK∼12–18∼14–18
Australia∼20∼10–14
Spain∼6–7∼5
Italy∼6∼1
Ireland∼9∼11
Switzerland∼5∼6.5
Germany∼7–8∼10–11
Israel∼7.5–8.5∼5
Mexico∼2.5∼2–3
Brazil∼12.5–13.0∼5–6