Table 5

Odds of occupational asthma at company A by duration from employment to symptoms (unadjusted estimates)

Asthma ⩽1 yAsthma >1 y
Odds ratio 95% CI p Value Odds ratio 95% CI p Value
8 h TWA isocyanate exposure (for 0.1 ppb increase)1.50.82 to to 1.130.41
Smoking at employment2.40.38 to 15.00.362.00.60 to 6.780.25
History of hay fever, eczema, or asthma2.60.43 to to 22.80.08