‡missing values: family socioeconomic status, n=12;
maternal smoking during pregnancy, n=5; secondhand smoke exposure,
n=593; §characteristics of the baseline study
population
Table 2 Associations (adjusted hazard ratio, aHR, 95% confidence
intervals, 95% CI) between cumulative exposure to Normalized Difference
Vegetation Index (NDVI) within 300 m during pregnancy and early life and
the risk of developing allergic rhinitis up to 27 years of age,
stratified by air pollution exposure concentration, The Espoo Cohort
Study 1983-2011