Characteristics of the study population
| Zone A (near industry) (n = 20) | Zone C (distant from industry) (n = 20) | |||
|---|---|---|---|---|
| Mean | Median | Mean | Median | |
| Age (years) | 62.5 | 65.0 | 65.3 | 67.0 |
| Body mass index (kg/m2) | 28.7 | 27.9 | 27.9 | 28.7 |
| Breast feeding (months) | 3.3 | 0 | 4.5 | 0 |
| Lifelong dietary consumption of (number of portions×1000) | ||||
| Meat | 16.0 | 16.7 | 18.3 | 19.1 |
| Fish | 6.0 | 5.3 | 4.4 | 5.0 |
| Dairy products | 39.3 | 40.4 | 41.8 | 40.8 |
| Eggs | 8.9 | 5.9 | 8.6 | 5.9 |
| Years in occupations considered a high risk for lung cancer (years) | 1.6 | 0 | 1.0 | 0 |
| Continued residence in last zone (years) | 47.3 | 45.5 | 40.5 | 38.0 |
| Consumption of local produce from zone A (years) | ||||
| Vegetables | 12.7 | 4.5 | 0.4 | 0 |
| Animal products | 2.3 | 0 | 0 | 0 |
| Total residence in last zone (years) | 52.6 | 49.0 | 44.2 | 40.5 |