Table 5 Trend analysis of plaque-free, periodontal health, and deep pockets in adults aged 25–54 from the Dutch National Oral Health Survey 1995–2013
Adjusted OR (95% CI) | Plaque-free | Periodontal health | Deep pockets |
|---|---|---|---|
Total population | |||
Survey year | |||
 1995 | 1 [reference] | 1 [reference] | 1 [reference] |
 2002 | 0.752 (0.539 to 1.048) | 0.893 (0.733 to 1.090) | 1.155 (0.792 to 1.686) |
 2007 | 2.073 (1.546 to 2.779) | 1.289 (1.043 to 1.593) | 1.102 (0.728 to 1.669) |
 2013 | 3.158 (2.372 to 4.206) | 1.542 (1.242 to 1.913) | 0.883 (0.562 to 1.388) |
P for temporal trend a | .000 | .000 | .652 |
Low-SES population | |||
Survey year | |||
 1995 | 1 [reference] | 1 [reference] | 1 [reference] |
 2002 | 0.754 (0.506 to 1.123) | .817 (0.645 to 1.036) | 1.071 (0.703 to 1.631) |
 2007 | 1.730 (1.136 to 2.634) | 1.248 (0.935 to 1.665) | 1.038 (0.626 to 1.722) |
 2013 | 2.915 (1.914 to 4.438) | 1.259 (0.922 to 1.718) | 0.882 (0.502 to 1.548) |
P for temporal trend a | .000 | .083 | .893 |
High-SES population | |||
Survey year | |||
 1995 | 1 [reference] | 1 [reference] | 1 [reference] |
 2002 | 0.669 (0.353 to 1.266) | 1.075 (0.741 to 1.559) | 1.633 (0.690 to 3.865) |
 2007 | 2.525 (1.644 to 3.879) | 1.359 (0.988 to 1.869) | 1.410 (0.646 to 3.080) |
 2013 | 3.501 (2.316 to 5.292) | 1.793 (1.312 to 2.449) | 1.061 (0.470 to 2.397) |
P for temporal trend a | .000 | .000 | .787 |
P for interaction b | .198 | .490 | .678 |