Table 3.
Association among caries experience (dmf) and prevalence (d) classifications and sex, age groups, and deprivation index.
| -A Caries Experience | |||||
| dmf = 0 n (%) |
dmf = 1–2 n (%) |
dmf = 3–4 n (%) |
dmf > 4 n (%) |
Total | |
| Sex | |||||
| Males | 4105 (73.65) | 748 (13.42) | 407 (7.30) | 314 (5.63) | 5574 (50.92) |
| Females | 4176 (77.72) | 648 (12.06) | 297 (5.53) | 252 (4.69) | 5373 (49.08) |
| Pearson χ2(3) = 28.07 p < 0.01 Linear trend z = −4.90 p < 0.01 | |||||
| Age groups | |||||
| 3–5 years | 4553 (86.21) | 400 (7.57) | 162 (3.07) | 166 (3.14) | 5281 (48.24) |
| 6–11 years | 3728 (65.80) | 996 (17.58) | 542 (9.57) | 400 (7.06) | 5666 (51.76) |
| Pearson χ2(3) = 625.73 p < 0.01 Linear trend z = 22.01 p < 0.01 | |||||
| Deprivation Index * | |||||
| Very low | 2885 (80.90) | 385 (10.80) | 157 (4.40) | 139 (3.90) | 3566 (32.58) |
| Low | 3216 (79.88) | 454 (11.28) | 189 (4.69) | 167 (4.15) | 4026 (36.38) |
| Medium | 560 (61.07) | 168 (18.32) | 119 (12.98) | 70 (7.63) | 917 (8.37) |
| High | 1620 (66.45) | 389 (15.96) | 239 (9.80) | 190 (7.79) | 2438 (22.27) |
| Pearson χ2(3) = 343.49 p < 0.01 Linear trend z = −4.04 p < 0.01 | |||||
| -B Caries Prevalence | |||||
| d = 0 n (%) |
d = 1–2 n (%) |
d = 3–4 n (%) |
d > 4 n (%) |
Total | |
| Sex | |||||
| Males | 4317 (77.45) | 706 (12.67) | 323 (5.79) | 228 (4.09) | 5574 (50.92) |
| Females | 4339 (80.76) | 609 (11.33) | 231 (4.30) | 194 (3.61) | 5373 (49.08) |
| Pearson χ2(3) = 21.54 p < 0.01 Linear trend z = 13.73 p < 0.01 | |||||
| Age groups | |||||
| 3–5 years | 4613 (87.35) | 369 (6.99) | 148 (2.80) | 151 (2.86) | 5281 (48.24) |
| 6–11 years | 4043 (71.36) | 946 (16.70) | 406 (7.17) | 271 (4.78) | 5666 (51.76) |
| Pearson χ2(3) = 431.98 p < 0.01 Linear trend z = 16.97 p < 0.01 | |||||
| Deprivation Index * | |||||
| Very low | 2977 (83.48) | 365 (10.24) | 115 (3.22) | 109 (3.06) | 3566 (32.58) |
| Low | 3346 (83.11) | 411 (10.21) | 144 (3.58) | 125 (3.10) | 4026 (36.38) |
| Medium | 600 (65.43) | 176 (19.19) | 88 (9.60) | 53 (5.78) | 917 (8.37) |
| High | 1733 (71.08) | 363 (14.89) | 207 (8.49) | 135 (5.54) | 2438 (22.27) |
| Pearson χ2(3) = 308.47 p < 0.01 Linear trend z = 13.73 p < 0.01 | |||||
* Deprivation Index was categorized as follows: index 0–0.14 very low deprivation; index 0.15–0.23 low deprivation; index 0.27–0.38 medium deprivation; index 0.39–1.00 high deprivation.