Table 4 Odds Ratios (OR) for reporting the presence of at least one respiratory irritation symptom over the past four weeks, from univariate and multivariate analyses
|  | No | Unadjusted OR (95% CI) | Adjusted OR (95% CI)‡ |
|---|---|---|---|
Hours worked per week | Â | 1.03 (1.00 to 1.07) | 1.04 (1.00 to 1.07) |
Exposure to SHS at work: | Â | Â | Â |
Not heavily exposed nearly all time | 151 | 1.00 | 1.00 |
Heavily exposed nearly all the time | 372 | 2.41 (1.50 to 3.86) | 2.24 (1.34 to 3.74) |
Household smoking: | Â | Â | Â |
Does not live with smoker | 404 | 1.00 | 1.00 |
Lives with smoker | 119 | 1.50 (0.82 to 2.71) | 1.43 (0.70 to 2.93) |
Smoking status: | Â | Â | Â |
Smoker | 119 | 1.00 | 1.00 |
Non-smoker | 404 | 0.68 (0.37 to 1.23) | 0.74 (0.36 to 1.53) |
Years worked in casinos | Â | 1.00 (0.97 to 1.02) | 1.01 (0.97 to 1.05) |
Gender: | Â | Â | Â |
Male | 275 | 1.00 | 1.00 |
Female | 248 | 1.08 (0.68 to 1.72) | 1.01 (0.60 to 1.68) |
Age: | Â | Â | Â |
16–34 | 148 | 1.00 | 1.00 |
35–54 | 306 | 0.81 (0.47 to 1.40) | 0.92 (0.44 to 1.92) |
55+ | 69 | 0.61 (0.30 to 1.27) | 0.86 (0.30 to 2.50) |
Highest qualifications†: |  |  |  |
GCSE D-G or lower | 102 | 1.00 | 1.00 |
Degree or higher education qualif | 125 | 1.51 (0.77 to 2.97) | 1.39 (0.67 to 2.90) |
A levels or ONC/BTEC | 143 | 1.49 (0.78 to 2.87) | 1.30 (0.64 to 2.64) |
GCSE A-C or equivalent | 153 | 1.69 (0.88 to 3.27) | 1.48 (0.73 to 3.01) |