Table 3

Sensitivity analyses presenting adjusted OR per 100 μg/m3 increase in PM2.5 in 6 h prior

nAdjusted OR*95% CI
Original model23561.031.00 to 1.05
Additional covariates
 Working, respirator use23561.031.00 to 1.05
 Heart rate23561.031.00 to 1.05
 Excluding high VE responders21991.031.00 to 1.05
 Excluding cardiac compromised19501.021.00 to 1.04
 Excluding constant and non-responders20741.021.00 to 1.04
 First participation time only7341.020.99 to 1.05
  • *Estimates the odds of having one or more VE in an hour period for 100 µg/m3 increase in PM2.5 after adjusting for age, time of day, season and worksite.

  • PM2.5, particulate matter ≤2.5 µm aerodynamic diameter; VE, ventricular event.