Study Ref Country N COVID-19 population Asthma prevalence
Children‘s Hospital, Wuhan 12 China 171 Pediatric patients hospitalized, 3 admitted ICU, mechanical ventilation
Hubei province 13 China 25 Pediatric patients hospitalized, 2 received mechanical ventilation
Nationwide China 14 China 2.035 34.1% laboratory-confirmed cases; >90% with asymptomatic to moderate cases.
Zhongnan Hospital of Wuhan 15 China 140 Adult patients hospitalized
Zhongnan Hospital of Wuhan 16 China 290 Adult patients hospitalized 0,3%
Multicentric study, Wuhan 17 China 191 Adult patients hospitalized
Tongji Hospital of Wuhan 18 China 548 Adult patients hospitalized 0,9%
Nationwide China 19 China 1.595 Adult patients with laboratory confirmed, 16,0% severe cases and 3,2% mortality
19 Italian regions and 2 autonomous provinces 20 Italy 355 Adult patients fatal cases
Lombardy region 21 Italy 1.591 Adult patients admitted ICU, 26% mortality
Confidence study 22 Italy 100 Pediatric emergency departments, most children with mild disease
La Paz Hospital 23 Spain 2.226 Hospitalized adult patients, 21% mortality 5,2%
Catalonia Region 24 Spain 124.190 Inpatients (14,6%) and outpatients 6,8%
Lausanne University Hospital 25 Switzerland 200 Adult patients hospitalized, 18,5% mechanical ventilation 4,0%
Seattle Region 26 USA 12 Adult patients admitted ICU, 50% mortality 12,5%
Evergreen Hospital, Washington 27 USA 21 Adult patients admitted ICU, 71% mechanical ventilation, 67% mortality (24% of cases still admitted in the ICU) 9,5%
COVID-19 in Children 28 USA 345 Pediatric patients, mild to severe “asthma most common comorbidity”
Kaiser Permanente Northern California 29 USA 1.299 Adult patients, 29% hospitalized, 8,7% admitted ICU 7,4% asthma/COPD
COVID-NET, 14 states 30 USA 1.482 Hospitalized patients (74.5% aged ≥50 years) 17,0%
Georgia, 8 hospitals 31 USA 305 Adult patients hospitalized (median age 60 years) 10,5%
New York City Area 32 USA 5,700 Adult (>99%) and pediatric hospitalized patients, 14.2% admitted ICU, 12.2% mechanical ventilation, 21% died. 9,0%
Mount Sinai Hospitals, New York 33 USA 2,199 Adult patients hospitalized (median age 65 years), 36% admitted ICU, 29% died. 8,2%
NewYork-Presbyterian/Columbia University Irving Medical Center 34 USA 1,000 Adult patients hospitalized (85%), from those 27,7% admitted ICU. 11,3%
ISARIC study 35 UK 16,749 Hospitalized patients (median age 72 years, range 0-104 years) 14,0%
OpenSAFELY case control populational study 36 UK 5,683 Fatal cases “asthma with higher risk of COVID-19 death” - HR=1,1 to 1,25 (no or recent use of OCS)
UK BioBank 37 UK 605 Adult patients hospitalized (median age 57,4 years) 17,9%
Middle East Region 39 Saudi Arabia 150 Hospitalized patients (median age 46 years), 10,7% admitted ICU. 2,7%
Epidemiological Surveillance System for Viral Respiratory Diseases of the Mexican Ministry of Health 40 Mexico 10554 Patients with laboratory confirmed SARS-CoV-2, 39,4% were hospitalized and 9,2% were fatal cases. 3,6%