Table 2

Asthma phenotypes in the first year of life in the children of the EDEN mother-child cohort study
Asthma phenotypes Corresponding questions Periods
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

Zhou et al.

Zhou et al. BMC Public Health 2013 13:506   doi:10.1186/1471-2458-13-506

Open Data