Table 1.
Descriptive Analysis of Data at Individual, Tooth, and Tooth Surface Levels.
| Individual (n = 6,469), n (%) | Teeth (n = 161,855), n (%) | Surfaces (n = 805,788), n (%) | |
|---|---|---|---|
| Age, y | |||
| 16–44 | 2,837 (43.86) | 79,606 (49.18) | 396,397 (49.19) |
| 45–64 | 2,355 (36.4) | 57,678 (35.64) | 287,114 (35.63) |
| 65 and older | 1,277 (19.74) | 24,571 (15.18) | 122,277 (15.17) |
| Sex | |||
| Male | 2,961 (45.77) | 73,795 (45.59) | 367,242 (45.58) |
| Female | 3,508 (54.23) | 88,060 (54.41) | 438,546 (54.42) |
| Educational qualification | |||
| No | 1,499 (23.17) | 31,999 (19.77) | 159,151 (19.75) |
| Yes | 4,966 (76.77) | 129,766 (80.17) | 646,192 (80.19) |
| Brushing frequency | |||
| <Once a day | 181 (2.80) | 3,897 (2.41) | 19,354 (2.40) |
| Once a day | 1,450 (22.41) | 34,617 (21.39) | 172,365 (21.39) |
| ≥Twice or more a day | 4,823 (74.56) | 122,994 (75.99) | 612,340 (75.99) |
| Sugar intake | |||
| Low | 3,256 (50.33) | 81,099 (50.11) | 402,109 (49.90) |
| High | 3,213 (49.67) | 80,756 (49.89) | 403,679 (50.10) |
| Toothpaste fluoride concentration, ppm | |||
| ≤550 | 996 (15.40) | 24,562 (15.18) | 122,267 (15.17) |
| 1,000–1,300 | 1,061 (16.40) | 26,591 (16.43) | 132,404 (16.43) |
| 1,350–1,500 | 4,351 (67.26) | 109,434 (67.61) | 544,819 (67.61) |
| Carious tooth | |||
| No | 4,543 (70.2) | 106,863 (66.02) | — |
| Yes | 1,926 (29.8) | 54,992 (33.98) | — |
| Carious surface | |||
| No | 4,543 (70.2) | — | 667,478 (82.84) |
| Yes | 1,926 (29.8) | — | 138,310 (17.16) |
—, blank.