Table 1.
Baseline characteristics
| Variable | All CAPEA patients (n = 1241) | PD module patients (n = 512) | Patients with dentist’s assessment (n = 353) | Patients with radiograph (n = 253) |
|---|---|---|---|---|
| Age, years | 56.2 (14.3) | 56.3 (14) | 55.8 (13.3) | 55.8 (13.3) |
| Sex, female | 65% (821) | 67% (575) | 64% (250) | 67% (170) |
| DAS28 ESR | 4.7 (1.4) | 4.8 (1.4) | 4.7 (1.4) | 4.7 (1.4) |
| ESR, mm/h | 31.2 (23.4) | 31.8 (23.7) | 31 (22.9) | 30 (22) |
| CRP, mg/l | 18.9 (31.9) | 17.8 (28.4) | 16.7 (22.3) | 15.5 (21.4) |
| Number of teeth | 19.2 (9.6) | 19.4 (9.6) | 20.8 (8.3) | 21.1 (7.7) |
| SJC28 | 6 (5.2) | 6 (5.2) | 5.6 (4.8) | 5.4 (4.7) |
| TJC28 | 9.7 (6.2) | 9.5 (6) | 9.2 (5.9) | 9.1 (5.8) |
| RF positive | 43% (539) | 43% (370) | 44% (169) | 40% (103) |
| Anti-CCP positive | 39% (493) | 38% (331) | 40% (157) | 36% (93) |
| Currently smoking | 33% (413) | 29% (254) | 27% (105) | 25% (65) |
Baseline characteristics of all patients from the early arthritis cohort CAPEA, patients who completed the PD-module, patients with additional dentist’s assessment of PD and patients with radiographs
CAPEA Course And Prognosis of Early Arthritis, PD periodontitis, RF rheumatoid factor, SJC swollen joint count, TJC tender joint count, ESR erythrocyte sedimentation rate, DAS28 Disease Activity Score including 28 joints, CRP C-reactive protein