Table 2 Asthma phenotypes in the first year of life in the children of the EDEN mother-child cohort study

Single phenotypes

Ever bronchiolitis

Question 1: Did your child suffer from bronchiolitis during the last 4 months?

0-4 months, 4–8 months and 8–12 months

Ever wheezing

Question 2: Did your child ever have wheezing or whistling in the chest after the birth?

0-8 months, 8–12 months

Question 3: Did your child ever have wheezing or whistling in the chest during the last 4 months?

Ever doctor-diagnosed asthma

Question 4: Did your child have a diagnosed asthma during the last 4 months?

0-4 months, 4–8 months and 8–12 months

Multi-dimensional phenotypes

Bronchiolitis and wheezing

Questions 1, 2, 3

0-8 months, 8–12 months

Doctor-diagnosed asthma with a history of bronchiolitis

Questions 1, 4

0-4 months, 4–8 months and 8–12 months

Doctor-diagnosed asthma with wheezing

Questions 2, 3, 4

0-8 months, 8–12 months

Doctor-diagnosed asthma with wheezing and a history of bronchiolitis

Questions 1, 2, 3, 4

0-8 months, 8–12 months