Predictor | Non-smokers(n = 306)GMR (95% CI)† | Current smokers(n = 119)GMR (95% CI)† |
Cumulative endotoxin exposure ‡ | 1.08 (1.01 to 1.16)* | 0.99 (0.88 to 1.11) |
Male sex | 1.21 (0.95 to 1.53) | 1.26 (0.87 to 1.84) |
Age (per 10 years) | 1.11 (1.03 to 1.19)* | 0.99 (0.90 to 1.10) |
Height (per 10 cm) | 1.12 (1.01 to 1.24)* | 1.11 (0.97 to 1.28) |
Atopy | 1.64 (1.39 to 1.93)** | 1.08 (0.79 to 1.49) |
*p<0.05; **p<0.001.
†GMR (95% CI) adjusted for all variables in the model.
‡Per interquartile range (exp2.03 = factor 7.6) increase in endotoxin exposure (EU/m3×year).
GMR, geometric mean FENO ratio.