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.
| Intervention (n = 605) |
Control (n = 615) |
p-value | |
|---|---|---|---|
| Variable | mean (SD) | mean (SD) | |
| Agea | 12.9 (1.3) | 12.9 (1.4) | 0.351 |
| Genderb, n (%) | |||
| Male | 289 (51.0) | 278 (49.0) | 0.369 |
| Female | 316 (48.4) | 337 (51.6) | |
| Family sizea | 5.0 (1.7) | 4.8 (1.6) | 0.033 |
aIndependent sample t-test
bChi-squared test
