Table 3. Hazard ratios of periodontitis by multivariate Cox proportional model.
| All types of periodontitis | Moderate/severe periodontitis | |||
|---|---|---|---|---|
| aHRa (95% CI) | p value | aHRa (95% CI) | p value | |
| Exposure group | ||||
| Comparison | Reference | Reference | ||
| Psoriasis | 1.01 (0.93–1.09) | 0.8415 | 0.85 (0.65–1.11) | 0.2233 |
| Psoriatic arthritis | 1.20 (0.99–1.47) | 0.0681 | 1.66 (0.99–2.78) | 0.0566 |
| Age (per 1 year) | 1.00 (1.00–1.00) | 0.0531 | 1.01 (1.00–1.02) | 0.0004 |
| Sex | ||||
| Female | Reference | Reference | ||
| Male | 0.91 (0.85–0.97) | 0.0033 | 0.98 (0.81–1.20) | 0.8697 |
| Co-morbidities | ||||
| COPD | 1.25 (1.06–1.48) | 0.0072 | 0.77 (0.44–1.34) | 0.3555 |
| Diabetes | 0.95 (0.84–1.08) | 0.4330 | 0.95 (0.68–1.33) | 0.7583 |
| Hypertension | 0.98 (0.89–1.08) | 0.7035 | 0.96 (0.73–1.26) | 0.7819 |
| Hyperlipidemia | 1.22 (1.08–1.37) | 0.0013 | 1.69 (1.24–2.29) | 0.0008 |
| Frequency of dental visit within 365 days prior to index date | ||||
| 0 | Reference | Reference | ||
| 1 | 1.57 (1.44–1.72) | <.0001 | 1.87 (1.44–2.42) | <.0001 |
| 2 | 1.69 (1.51–1.88) | <.0001 | 1.47 (1.03–2.09) | 0.0350 |
| ≧3 | 1.83 (1.68–1.99) | <.0001 | 1.68 (1.29–2.19) | 0.0001 |
Notes.
a
Adjusted hazard ratio: this was adjusted for psoriasis exposure, age, sex, co-morbidities, and frequency of dental visit within 365 days prior to index date.