Table II.
Demographic characteristics of children by orthodontic treatment status in the Washington Medicaid program in 2012
| Demographic characteristic | Children who obtained records and initiated orthodontic treatment | Children who obtained records but did not initiate orthodontic treatment | Children who obtained records, with or without orthodontic treatment initiation |
|---|---|---|---|
| n = 7313 | n = 910 | n = 8223 | |
| mean (SD) or n (%) | mean (SD) or n (%) | mean (SD) or n (%) | |
| Age (y) | 13.6 (2.6) | 13.3 (3.0) | 13.6 (2.7) |
| <12 | 1985 (27.1%) | 319 (35.0%) | 2304 (28.0%) |
| ≥12 | 5328 (72.9%) | 591 (65.0%) | 5919 (72.0%) |
| Race | |||
| White | 2844 (38.9%) | 366 (40.2%) | 3210 (39.0%) |
| Black | 365 (5.0%) | 56 (6.2%) | 421 (5.1%) |
| Asian | 213 (2.9%) | 30 (3.3%) | 243 (3.0%) |
| American Indian | 153 (2.1%) | 25 (2.8%) | 178 (2.2%) |
| Alaskan Native | 6 (0.1%) | 0 (0%) | 6 (0.1%) |
| Hawaiian | 7 (0.1%) | 1 (0.1%) | 8 (0.1%) |
| Pacific Islander | 81 (1.1%) | 19 (2.1%) | 100 (1.2%) |
| Other | 3009 (41.1%) | 288 (31.6%) | 3297 (40.1%) |
| Missing | 635 (8.7%) | 125 (13.7%) | 760 (9.2%) |
| Ethnicity | |||
| Hispanic | 2791 (38.2%) | 287 (31.5%) | 3078 (37.4%) |
| Non-Hispanic | 3640 (49.8%) | 503 (55.3%) | 4143 (50.4%) |
| Missing | 882 (12.0%) | 120 (13.2%) | 1002 (12.2%) |
| Preventive dental care use in 2012 | |||
| Yes | 6301 (86.2%) | 775 (85.2%) | 7076 (86.0%) |
| No | 1012 (13.8%) | 135 (14.8%) | 1147 (14.0%) |