Table 1.
Summary of the study populations
| Variable | Pittsburgh | Porto Alegre | Rio de Janeiro | |
|---|---|---|---|---|
| |
N |
866 |
1,460 |
359 |
| Periodontitis status |
Affected |
99 (11.4%) |
430 (29.4%) |
183 (51%) |
| |
Non-Affected |
767 (88.6%) |
1,030 (70.6%) |
176 (49%) |
| Mean age (Years) |
|
41 |
40 |
56 |
| Sex |
Females |
439 (50.7%) |
784 (53.7%) |
257 (71.6%) |
| |
Males |
427 (49.3%) |
676 (46.3%) |
105 (28.4%) |
| Ethnic background |
White |
606 (70%) |
1,188 (81.4%) |
288 (80.2%) |
| |
Black |
190 (21.9%) |
272 (18.6%) |
71 (19.8%) |
| |
Other |
70 (8.1%) |
0 |
0 |
| Ethnic background |
White |
63 |
348 |
147 |
| In individuals with |
Black |
32 |
82 |
36 |
| With Periodontitis |
Other |
4 |
0 |
0 |
| Smoker |
|
128 (14.8%) |
430 (29.4%) |
39 (10.9%) |
| Self-reported diabetes | 44 (5.1%) | 40 (2.7%) | 31 (8.6%) |