Cotinine concentrations for hotel staff by type of work duties
| Waiter (n = 11) | Management (n = 10) | Other (n = 11) | Mixed (n = 3) | Total (n = 35) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Baseline | F/U | Baseline | F/U | Baseline | F/U | Baseline | F/U | Baseline | F/U | |
| F/U, follow up. | ||||||||||
| Mean | 4.59 | 1.46 | 1.19 | 1.24 | 2.6 | 1.1 | 2.88 | 1.43 | 2.86 | 1.29 |
| SD | 4.24 | 0.88 | 1.67 | 1.13 | 3.0 | 1.68 | 3.36 | 2.06 | 3.36 | 1.29 |
| Geometric mean | 2.5 | 0.98 | 0.48 | 0.65 | 1.3 | 0.36 | 0.87 | 0.51 | 1.17 | 0.6 |
| Median | 3.9 | 1.6 | 0.55 | 0.95 | 3.1 | 1.7 | 2.0 | 0.4 | 1.6 | 0.5 |
| 25th centile | 1.3 | 0.5 | 0.16 | 0.18 | 0.85 | 0.1 | 0.05 | 0.09 | 0.4 | 0.2 |
| 75th centile | 9.5 | 2.2 | 1.6 | 2.2 | 2.6 | 2.6. | 6.6 | 3.8 | 4.2 | 2.2 |