Table 1.
Comparison of demographics and clinical characteristics between study groups.
RA (n=35) | Healthy (n=35) | Periodontitis (n=35) | P Value | |
---|---|---|---|---|
Age (years; mean +/− SD) | 46.8 +/− 10.5 | 43.0 +/− 10.6 | 44.2 +/− 8.2 | |
Female (%) | 77.2 | 74.3 | 71.4 | |
White (%) | 94.3 | 85.7 | 54.3 | <0.006* |
Hispanic (%) | 2.9 | 5.7 | 17.1 | |
African American | 0 | 0 | 11.4 | |
Asian (%) | 2.9 | 8.6 | 14.3 | |
Current tobacco use (%) | 11.4 | 0 | 17.1 | 0.065* |
Current alcohol use (%) | 25.7 | 37.1 | 11.4 | <0.001* |
# Teeth | 26.4 +/− 3.0 | 27.0 +/− 2.5 | 26.3 +/− 1.9 | |
Periodontal indices (% sites; mean +/− SD) | ||||
Plaque sites | 48.4 +/− 31.5 | 41.7 +/− 41.8 | 136.8 +/− 21.3 | <0.0001** |
BOP Sites | 13.0 +/− 10.4 | 4.6 +/− 5.5 | 0.012*** | |
55.0 +/− 23.5 | <0.0001** | |||
PD Sites ≥4 mm | 4.9 +/− 8.6 | 1.8 +/− 2.3 | 27.0 +/− 15.0 | <0.0001** |
PD Sites ≥5 mm | 1.7 +/− 3.4 | 0.2+/− 0.5 | 16.4 +/− 11.4 | <0.0001** |
CAL ≥2 mm | 3.4 +/− 6.7 | 2.7 +/− 5.9 | 17.6 +/−11.8 | <0.0001** |
determined by Fisher’s exact test.
determined by ANOVA and applies to comparisons of Periodontitis vs. RA or Healthy.
determined by ANCOVA and applies to comparisons of RA vs. Healthy.