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.
The incidence of swallowing artifact between the tongue-out group and the non-tongue-out group (The chi-square test).
| Swallowing artifacts (%) | Non swallowing artifacts (%) | Total | |
|---|---|---|---|
| Tongue-out group | 10(15%) | 53(85%) | 63 |
| Non-tongue-out group | 18(32%) | 38(68%) | 56 |
| Total | 28 | 91 | 119 |
| χ2 = 4.36, P = 0.037 |
