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Table 2 Risk factors in family members of children hospitalised or not with acute bronchiolitis in infancy

From: Acute bronchiolitis in infancy as risk factor for wheezing and reduced pulmonary function by seven years in Akershus County, Norway

Reported at child age seven years Hospitalised group Not hospitalised group
No. families with risk factorsa RS- (n = 22) RS+ (n = 35) Both (n = 57) Controls (n = 64)
Allergy before seven years 8 13   
Current allergy 12 16 28 33
Eczema before seven years 6 7   
Current eczema 8 14 22 28
Asthma before seven years 10 8   
Current asthmab 10 12 22 12
Siblings <6 years before seven years 12 22   
Current siblings <6 years 6 11 17 26
Parental smoking before seven years 10 16   
Current parental smoking 10 19 29 28
  1. a Risk factors in first order family members (mother, father, siblings) as reported by parents
  2. b P = 0.015 with chi square test between the hospitalised group and not hospitalised group