Gender, age, length of employment, smoking status, and alcohol consumption of the studied workers by factory
| Factory | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Porto Torres | Brindisi | Ravenna | Porto Marghera | Total | ||||||
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | |
| Age (years) | 48 | 7 | 43 | 12 | 42 | 97 | 43 | 10 | 44 | 10 |
| Length of employment (years) | 24 | 8 | 18 | 12 | 18 | 10 | 18 | 10 | 19 | 10 |
| n | Column % | n | Column % | n | Column % | n | Column % | n | Column % | |
|---|---|---|---|---|---|---|---|---|---|---|
| SD, standard deviation. | ||||||||||
| Gender | ||||||||||
| Males | 169 | 99.4 | 156 | 98.7 | 150 | 96.8 | 260 | 94.9 | 735 | 97.1 |
| Females | 1 | 0.6 | 2 | 1.3 | 5 | 3.2 | 14 | 5.1 | 22 | 2.9 |
| Number of cigarettes per day | ||||||||||
| Non-smokers | 61 | 36.5 | 69 | 44.2 | 69 | 44.8 | 105 | 38.6 | 304 | 40.6 |
| Ex-smokers | 40 | 24.0 | 18 | 11.5 | 33 | 21.4 | 80 | 29.4 | 171 | 22.8 |
| ≤10 | 14 | 8.4 | 33 | 21.2 | 15 | 9.7 | 47 | 17.3 | 109 | 14.6 |
| ≤20 | 48 | 28.7 | 36 | 23.1 | 33 | 21.4 | 33 | 12.1 | 150 | 20.0 |
| >20 | 4 | 2.4 | – | 4 | 2.6 | 7 | 2.6 | 15 | 2.0 | |
| Amount of alcohol per day | ||||||||||
| No alcohol intake | 44 | 26.2 | 64 | 41.6 | 24 | 15.5 | 71 | 26.0 | 203 | 27.1 |
| ≤40 g | 118 | 70.2 | 63 | 40.9 | 111 | 71.6 | 197 | 72.2 | 489 | 65.2 |
| 40–80 g | 6 | 3.6 | 27 | 17.5 | 20 | 12.9 | 5 | 1.8 | 58 | 7.7 |