1968/69 | 1980/81 | 1992/93 | 2004/05 | ||
---|---|---|---|---|---|
Age 38 | Participants | 356 | 109 | 67 | 207 |
Participation rate | 87.5% | 75.2% | 72.8% | 59.5% | |
Mean number of teeth | 22.2 | 24.9 | 28.1 | 29.0 | |
Median | 24.0 | 27.0 | 28.0 | 29.0 | |
SD | 7.0 | 5.9 | 2.2 | 2.5 | |
Age 50 | Participants | 390 | 323 | 98 | 293 |
Participation rate | 89.4% | 76.4% | 77.2% | 57.7% | |
Mean number of teeth | 14.6 | 20.9 | 23.9 | 27.3 | |
Median | 17.0 | 23.0 | 26.0 | 28.0 | |
SD | 9.6 | 7.2 | 6.2 | 3.3 |