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Table 1 Characteristics of the patients reported to the national health surveillance system [3] and the subgroup included in the screening study

From: Interest of a simple on-line screening registry for measuring ICU burden related to an influenza pandemic

Baseline characteristics Screening cohort
(n= 391)
NIPHS
(n= 1,065)
Age in years 46 (33-57) 49 (35-58)
Male 210 (53%) 562 (53%)
No risk factor of complication 87 (22%) 191 (18%)
Immunosuppression 89 (23%) 82 (8%)
Asthma 46 (12%) 135 (13%)
Chronic obstructive pulmonary disease 77 (20%) 214 (20%)
Chronic heart failure 33 (8%) 84 (8%)
Diabetes 53 (13%) 125 (12%)
Obesity: body mass index > 30 115 (29%) 84 (27%)
Pregnancy 18 (4.6%) 58 (6%)
Death 87 (22.2%) 217 (20.4%)
  1. Except for 'Age in years', which is expressed as mean (interquartile range), values are expressed as number (percentage). NIPHS, National Institute for Public Health Surveillance.