Table 2 Description of the potential risk indicators selected by univariate analysis
Variables | DMFT ≥ 3 (%) | DMFT < 3 (%) | χ2 | P |
|---|---|---|---|---|
Gender | ||||
Male | 183 (8.22) | 2044 (91.78) | 52.0611 | < 0.0001*** |
Female | 354 (15.09) | 1992 (84.91) | Â | Â |
Region | ||||
Urban | 361 (15.87) | 1914 (84.13) | 74.0525 | < 0.0001*** |
Rural | 176 (7.66) | 2122 (92.34) | Â | Â |
Urbanization | ||||
Low | 280 (17.35) | 1334 (82.65) | 77.6834 | < 0.0001*** |
Middle | 134 (7.98) | 1546 (92.02) | Â | Â |
High | 123 (9.61) | 1156 (90.38) | Â | Â |
Candy/chocolate/cookies/cakes | ||||
Never/seldom | 46 (8.80) | 477 (91.20) | 14.3734 | 0.0134** |
1–3 times/month | 57 (9.61) | 536 (90.39) |  |  |
Once/week | 75 (10.55) | 636 (89.45) | Â | Â |
2–6 times/week | 167 (12.46) | 1173 (87.54) |  |  |
Once/day | 107 (13.02) | 715 (86.98) | Â | Â |
≥ 2 times/day | 85 (14.55) | 499 (85.45) |  |  |
Only child | ||||
Yes | 161 (9.67) | 1504 (90.33) | 10.8584 | 0.0010** |
No | 376 (12.93) | 2532 (87.07) | Â | Â |
Self-assessment of oral health status | ||||
Very good | 8 (6.25) | 120 (93.75) | 30.5292 | < 0.0001*** |
Good | 98 (9.82) | 900 (90.18) | Â | Â |
Average | 288 (11.14) | 2298 (88.86) | Â | Â |
Poor | 117 (15.88) | 620 (84.12) | Â | Â |
Very poor | 26 (20.97) | 98 (79.03) | Â | Â |
History of dental trauma | ||||
Yes | 141 (11.80) | 1054 (88.20) | 6.0979 | 0.0474* |
No | 212 (10.59) | 1790 (89.41) | Â | Â |
Don’t remember | 184 (13.37) | 1192 (86.63) |  |  |
Frequency of toothache in the previous 12Â months | ||||
Often | 20 (18.18) | 90 (81.82) | 11.6055 | 0.0089** |
Occasionally | 320 (12.50) | 2241 (87.50) | Â | Â |
Never | 129 (9.63) | 1210 (90.37) | Â | Â |
Don’t remember | 68 (12.08) | 495 (87.92) |  |  |
History of dental visits | ||||
Yes | 286 (13.41) | 1847 (86.59) | 10.6997 | 0.0011** |
No | 251 (10.29) | 2189 (89.71) | Â | Â |
Time of last dental visit | ||||
Never | 251 (10.29) | 2191 (89.71) | 16.8472 | 0.0008*** |
< 6 months ago | 76 (16.70) | 379 (83.30) |  |  |
6–12 months ago | 65 (12.17) | 469 (87.83) |  |  |
> 12 months ago | 145 (12.68) | 999 (87.33) |  |  |
Reason for last dental visit | ||||
Never/don’t know | 408 (11.15) | 3251 (88.85) | 15.2422 | 0.0016 ** |
Consultation | 34 (12.98) | 228 (87.02) | Â | Â |
Prevention | 6 (5.94) | 95 (94.06) | Â | Â |
Treatment | 89 (16.15) | 462 (83.85) | Â | Â |
Fluoride can protect teeth | ||||
Correct | 371 (11.15) | 2957 (88.85) | 4.1757 | 0.0410* |
Wrong/don’t know | 166 (13.33) | 1079 (86.67) |  |  |
Pit and fissure sealing can protect teeth | ||||
Correct | 460 (11.39) | 3578 (88.61) | 4.1044 | 0.0428* |
Wrong/don’t know | 77 (14.39) | 458 (85.61) |  |  |
Regular dental check is necessary | ||||
Agree | 381 (12.25) | 2730 (87.75) | 7.8628 | 0.0489* |
Disagree | 8 (6.67) | 112 (93.33) | Â | Â |
Perhaps | 81 (9.75) | 750 (90.25) | Â | Â |
Don’t know | 67 (13.11) | 444 (86.89) |  |  |
Impact on sleeping | ||||
Serious | 18 (14.75) | 104 (85.25) | 21.6344 | 0.0002*** |
General | 45 (17.72) | 209 (82.28) | Â | Â |
Slight | 100 (13.81) | 624 (86.19) | Â | Â |
None | 357 (11.15) | 2846 (88.85) | Â | Â |
Don’t know | 17 (6.30) | 253 (93.70) |  |  |
Impact on grinning | ||||
Serious | 38 (13.67) | 240 (86.33) | 11.9381 | 0.0178* |
General | 60 (11.28) | 472 (88.72) | Â | Â |
Slight | 142 (13.63) | 900 (86.37) | Â | Â |
None | 278 (11.41) | 2159 (88.59) | Â | Â |
Don’t know | 19 (6.69) | 265 (93.31) |  |  |