Table 2.
Prevalence and Incidence of Periodontal Disease by FamHxMI vs. Smoking Status.
| No FamHxMI | FamHxMI | P Valuea | |||
|---|---|---|---|---|---|
| Participants | 17,248 | 2,556 | |||
| Prevalence of PD | 2,968 (17.2) | 474 (18.5) | 0.09 | ||
| Incidence of PD | 1,166 (6.8) | 199 (7.8) | 0.06 | ||
| Ever having PD | 4,134 (24.0) | 673 (26.3) | 0.01 | ||
| Nonsmoker |
Smoker |
||||
| Group 1: No FamHxMI | Group 2: FamHxMI | Group 3: No FamHxMI | Group 4: FamHxMI | ||
| Participants | 8,866 | 1,279 | 8,382 | 1,277 | |
| Prevalence of PD | 1,059 (11.9) | 169 (13.2) | 1,909 (22.8) | 305 (23.9) | <0.001 |
| Incidence of PD | 556 (6.3) | 96 (7.5) | 610 (7.3) | 103 (8.1) | 0.02 |
| Incidence rateb | 6.52 (5.98 to 7.06) | 8.00 (6.40 to 9.60) | 8.75 (8.06 to 9.45) | 9.86 (7.96 to 11.77) | |
| Ever-having PD | 1,615 (18.2) | 265 (20.7) | 2,519 (30.1) | 408 (31.9) | <0.001 |
Values are presented as n (%) unless noted otherwise.
FamHxMI, family history of myocardial infarction; PD, periodontal disease.
a
P values are based on the chi-square tests for categorical variables. Bold indicates P < 0.05.
b
Median (Q1 to Q3) per 1,000 person-years of follow-up.