Table 4 Construct and criterion validity of the OIDP-total scores: mean values for each category of grouping variable and differences in mean rank (DMR). Mann Whitney U test and Kruskal Wallis test.
Urban (n = 508) | Rural (n = 512) | |||||
|---|---|---|---|---|---|---|
Mean | p | DMR | Mean | p | DMR | |
Oral health status | ||||||
Good | 2.1 | 3.6 | ||||
Bad | 8.9 | 0.001 | 142.3 | 15.6 | 0.001 | 167.2 |
Chewing foods | ||||||
All kinds | 2.5 | 5.3 | ||||
Soft and mashed only | 7.7 | 0.001 | 100.0 | 15.7 | 0.001 | 136.2 |
Decayed teeth | ||||||
0–1 | 2.9 | 7.5 | ||||
2–22 | 4.9 | 0.002 | 37.8 | 10.4 | 0.002 | 38.8 |
Occluding units | ||||||
10 units | 1.4 | 6.4 | ||||
0–9 units | 4.2 | 0.001 | 67.1 | 9.9 | 0.001 | 51.9 |
Number of missing teeth | ||||||
0–10 | 3.6 | 8.3 | ||||
11–19 | 4.6 | 13.3 | ||||
20+ | 6.2 | 0.492 | 26.1 | 11.0 | 0.001 | 59.8 |
Mobile teeth | ||||||
0–1 | 3.5 | 8.2 | ||||
2 or more | 5.3 | 0.034 | 35.0 | 12.1 | 0.001 | 57.2 |