Study sample characteristics
| Variables (effective n) | Study sample characteristics (%) |
|---|---|
| Total (71 430) | |
| Sex (71 430) | |
| Boy | 50.8 |
| Girl | 49.2 |
| Born in Australia (62 341) | |
| Yes | 95.7 |
| No | 4.3 |
| Indigenous identity (59 954) | |
| Indigenous | 2.1 |
| Non-indigenous | 97.9 |
| Residential location (67 305) | |
| Adelaide (Capital city) | 66.5 |
| Other areas | 33.5 |
| Risk status at baseline (71 430) | |
| Low risk | 21 |
| Medium risk | 57.9 |
| High risk | 21.1 |
| Caries status at baseline (71 430) | |
| DMFS+dmfs=0 | 53.3 |
| DMFS+dmfs>0 | 46.7 |
| Time interval between two examination (71 430; months) | |
| 6–12 | 12.18 |
| 12–18 | 44.5 |
| >18 | 43.32 |
Some children had missing information on several variables.
DMFS/dmfs, decayed, missing or filled tooth surfaces.