Table 1.
Characteristics of the study participants (n = 9486).
| Characteristics | % (SE) |
|---|---|
| Age (%)∗ | |
| <24 y (n = 2241) | 20.57 (0.76) |
| ≥24 y and <39 y (n = 4701) | 50.41 (0.98) |
| ≥39 y (n = 2544) | 29.02 (0.90) |
|
| |
| Gender (%)∗ | |
| Male (n = 4262) | 48.59 (0.55) |
| Female (n = 5224) | 51.41 (0.55) |
|
| |
| Race/ethnicity (%)∗ | |
| Non-Hispanic Caucasian (n = 2927) | 73.14 (1.42) |
| Non-Hispanic African-American (n = 3204) | 12.42 (0.75) |
| Mexican-American (n = 2940) | 5.98 (0.52) |
| Others (n = 415) | 8.46 (0.94) |
|
| |
| Socioeconomic status (%)∗ | |
| Low SES: 0–1. 3 PIR (n = 3004) | 17.82 (1.05) |
| Medium SES: >1.3–3.5 PIR (n = 3857) | 43.13 (1.30) |
| High SES: >3.5 PIR and above (n = 2625) | 39.05 (1.45) |
|
| |
| Education level (%)∗ | |
| Less than high school (n = 3105) | 20.45 (1.00) |
| High school or more (n = 6381) | 79.55 (1.00) |
|
| |
| Previous orthodontic treatment (%)∗ | |
| Yes (n = 1125) | 19.62 (0.96) |
| No (n = 8361) | 80.38 (0.96) |
|
| |
| Decayed caries experience (%)∗ | |
| DT = 0 (n = 5878) | 71.93 (1.08) |
| DT > 0 (n = 3608) | 28.07 (1.08) |
|
| |
| Filled caries experience (%)∗ | |
| FT = 0 (n = 2187) | 12.84 (0.63) |
| FT > 0 (n = 7299) | 87.16 (0.63) |
|
| |
| Decayed and filled caries experience (%)∗ | |
| DFT = 0 (n = 933) | 6.52 (0.41) |
| DFT > 0 (n = 8553) | 93.48 (0.41) |
|
| |
| Severe decayed caries experience (%)∗ | |
| DT ≤ 2 (n = 8049) | 89.26 (0.59) |
| DT > 2 (n = 1437) | 10.74 (0.59) |
|
| |
| Severe filled caries experience (%)∗ | |
| FT ≤ 11 (n = 8011) | 77.83 (1.21) |
| FT > 11 (n = 1475) | 22.17 (1.21) |
|
| |
| Severe decayed and filled caries experience (%)∗ | |
| DFT ≤ 12 (n = 8101) | 78.91 (1.11) |
| DFT > 12 (n = 1385) | 21.09 (1.11) |
SE, standard error. ∗Significant P value at α < 0.05.