Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Demographics for the treated and untreated Class II groups
| Age at T1, years | Age at T2, years | Age at T3, years | ||||
|---|---|---|---|---|---|---|
| Number | Female | Male | Mean (SD) | Mean (SD) | Mean (SD) | |
| cHerbst group | 40 | 20 | 20 | 13.6 (1.3) | 14.8 (1.4) | 15.9 (1.4) |
| Control group | 18 | 7 | 11 | 13.9 (1.6) | 14.7 (1.4) | 15.7 (1.4) |
