Table 3 Adjusted regression of Th1, Th2 and Th1:Th2 ratio at age 24 months on total mean spore and pollen concentrations
Th1Th2Th1:Th2
Adjusted β† (95% CI)Adjusted β‡ (95% CI)Adjusted β§ (95% CI)
Total spores (per 2695 units)¶22.6 (1.9 to 47.5)*−11.7 (−25.4 to 4.6)38.8 (14.3 to 68.6)*
Total pollen (per 27 units)¶−20.3 (−33.5 to −4.5)*0.8 (−14.4 to 18.6)−13.5 (−28.7 to 4.8)
  • *p<0.05.

  • †Controlling for ⩾2 colds in the first 6 months of life and PM2.5 in first 3 months of life.

  • ‡Controlling for presence of gas stove in home.

  • §Controlling for ⩾2 colds in the first 6 months of life, PM2.5 in first 3 months of life and gas stove in home.

  • ¶Equivalent to interquartile range (IQR) of exposure.