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