Table 2.
Risk of type 2 diabetes in quartiles of the healthy Nordic diet score
| Quartile of the healthy Nordic diet score (score) | P for trend | Hazard ratio (95% confidence interval) for one unit decrease in the score | ||||
|---|---|---|---|---|---|---|
| 1 (≤ 9) (n = 664) |
2 (10–12) (n = 438) |
3 (13–14) (n = 607) |
4 (≥ 15) (n = 623) |
|||
| Number of events (% of subjects) | 136 (20.5) | 80 (18.3) | 114 (18.8) | 102 (17.3) | ||
| Incidence rate/1000 person-years | 11.11 | 9.54 | 9.44 | 8.35 | ||
| Model 1 | 1.48 (1.14–1.92) | 1.22 (0.91–1.63) | 1.17 (0.90–1.54) | 1 | 0.003 | 1.039 (1.015–1.062) |
| Model 2 | 1.35 (1.03–1.76) | 1.21 (0.90–1.63) | 1.15 (0.88–1.51) | 1 | 0.028 | 1.030 (1.005–1.055) |
Model 1 is adjusted for age (years), examination year and energy intake (kcal/day)
Model 2 is adjusted for Model 1 plus smoking (never smoker, previous smoker, current smoker < 20 cigarettes/day and current smoker ≥ 20 cigarettes/day), body mass index (kg/m2), leisure-time physical activity (kcal/day), education (years), marital status (married vs other), income (euros/year), and family history of diabetes (yes/no)