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Table 2 Association of total and traffic-specific pollutants and diabetes incidence (relative risks for PM are presented for an increase equivalent to the IQR and for an increase of 1 μg/m3)

From: Long-term exposure to fine particulate matter and incidence of type 2 diabetes mellitus in a cohort study: effects of total and traffic-specific air pollution

    Increase in PM equivalent to the IQR Increase of 1 μg/m3 PM
   IQR Crude model Main modela Crude model Main modela
Total PM PM10ALL 3.78 1.08 (0.96;1.21) 1.20 (1.01;1.42) 1.02 (0.99;1.05) 1.05 (1.00;1.10)
  PM2.5All 2.29 1.03 (0.92;1.15) 1.08 (0.89;1.29) 1.01 (0.96;1.06) 1.03 (0.95;1.12)
Traffic PM10TRA 0.33 1.15 (1.05;1.27) 1.11 (0.99;1.23) 1.54 (1.15;2.05) 1.36 (0.98;1.89)
  PM2.5TRA 0.32 1.15 (1.04;1.26) 1.10 (0.99;1.23) 1.53 (1.15;2.05) 1.36 (0.97;1.89)
Distance to major road (>200 m reference) (N = 3186) <= 100 (N = 180)     1.31 (0.99;1.75) 1.37 (1.04;1.81)
  >100-200 (N = 339)     0.81 (0.60;1.12) 0.77 (0.57; 1.04)
  1. amain model adjusted for age, gender, lifestyle variables, BMI, individual and neighbourhood SES, and city
  2. N numbers of individuals