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.
Comparison of clinical characteristics between the healthy control and RA group.
| Control group | RA group | P | |
|---|---|---|---|
| N | 32 | 32 | |
| Men/women | 8/24 | 6/26 | 0.376 |
| Age (years) | 62.0 ± 9.0 | 60.4 ± 10.0 | 0.515 |
| Number of teeth | 26.3 ± 1.8 | 26.4 ± 1.5 | 0.709 |
| Smokers | 2 | 2 | 1.000 |
| Diabetes mellitus | 0 | 1 | 0.313 |
| No. of sites with PD ≥ 4 mm (%) | 9.8 ± 5.1 | 12.4 ± 11.2 | 0.371 |
| RA duration (years) | 7.3 ± 6.1 |
Values are expressed as mean ± SD.
RA, rheumatoid arthritis.
∗ Independent t-test and χ2 test, respectively, P < 0.05.
