Table 3.
Longitudinal validity: mean change OIDP scores (sd) and [effect sizes] by change scores of reference variables (Norwegian cohort n = 2947) (Swedish cohort n = 4862)
| |
Satisfaction with oral health |
|||
|---|---|---|---|---|
| Worsened a | Stable b | Improved c | Total | |
|
Norway |
|
|
|
|
| OIDP change score |
−1.60 (5.2) [0.4] |
0.02 (2.3)[0.0] |
1.28 (4.3)[0.2]** |
0.04 (3.3) [0.1] |
|
Sweden |
|
|
|
|
| OIDP change score |
−0.56 (4.1) [0.2] |
0.28 (2.7) [0.1] |
2.14 (5.4) [0.4]** |
0.49 (3.6) [0.1] |
| |
Satisfaction with tooth appearance |
|||
| |
Worsened
a
|
Stable
b
|
Improved
c
|
Total |
|
Norway |
|
|
|
|
| OIDP change score |
−1.93 (5.4) [0.5] |
0.03 (2.5)[0.0] |
1.41 (3.9)[0.3]** |
- |
|
Sweden |
|
|
|
|
| OIDP change score |
−0.59 (4.0)[0.2] |
0.34 (2.9)[0.1] |
1.88 (5.3) [0.3]** |
- |
| |
Tooth loss |
|||
| |
Lost teeth
a
|
Stable all teeth
b
|
Stable tooth loss
c
|
Total |
|
Norway |
|
|
|
|
| OIDP change score |
−0.72 (4.6)[0.4] |
0.01 (2.0)[0.0] |
0.21 (6.1)[0.3]* |
- |
|
Sweden |
|
|
|
- |
| OIDP change score | −0.14 (3.9) [0.4] | 0.25 (2.1)[0.1] | 1.13 (6.4) [0.2]** | - |
Data are given as mean (sd) [effect size].
One-way ANOVA: *p < 0.05, **p < 0.001.
Bonferroni post hoc analyses indicated the following (p < 0.05):
● Statistically significant differences in mean OIDP change by change score of satisfaction with oral health and change score of satisfaction with tooth appearance in Norway and Sweden: group a vs. group b, group a vs. group c and group b vs. group c.
● Statistically significant differences in mean OIDP change by change score of tooth loss in Norway: group a vs. group b, group a vs. group c.
● Statistically significant differences in mean OIDP change by change score of tooth loss in Sweden: group a vs. group c and group b vs. group c.