Schematic example of diabetes incidence associated with physical activity and smoking
| Smoking status | Leisure-time physical activity | No. | Observed no. of diabetes | Risk over 18-year follow-up (per 1000) |
| 0=non-smokers | 0=inactive | 17 142 | 1680 | (1680/17 142)×1000=98.0 |
| 1=active | 5955 | 496 | (496/5955)×1000=83.3 | |
| 1=smoker | 0=inactive | 7327 | 855 | (855/7327)×1000=116.7 |
| 1=active | 2495 | 235 | (235/2495)×1000=94.2 | |
| Total | 0=inactive | 24 469 | 2535 | (2535/24 469)×1000=103.6 |
| 1=active | 8450 | 731 | (731/8450)×1000=86.5 | |
| Overall | – | 32 919 | 3266 | (3266/32 919)×1000=99.2 |