Table 1.
Baseline characteristics of subjects stratified according to outcome.
| Characteristics | All participants (N = 207) | Survivor (N = 169) | Non-survivor (N = 38) | p value |
|---|---|---|---|---|
| Male | 135 (65.2%) | 111 (65.7%) | 24 (63.2%) | 0.71 |
| Age (years) | 65.9 ± 12.1 | 64.9 ± 12.5 | 70.9 ± 9.2 | 0.01 |
| Smoking | ||||
| Non-smoker | 84 (40.6%) | 70 (41.4%) | 14 (36.8%) | 0.50 |
| Past-smoker | 92 (44.4%) | 76 (45.0%) | 16 (42.1%) | |
| Current-smoker | 31 (15.0%) | 23 (13.6%) | 8 (21.1%) | |
| BMI (kg/m2) | 21.5 (19.2, 23.5) | 21.5 (19.3, 23.6) | 19.9 (17.9, 22.9) | 0.01 |
| Hemodialysis vintage (months) | 64 (33, 115) | 62 (33, 116) | 74 (35, 107) | 0.54 |
| Diabetes | 101 (48.8%) | 78 (46.1%) | 15 (39.5%) | 0.15 |
| Duration of diabetes (years) | 19.0 ± 9.3 | 18.8 ± 9.9 | 20.1 ± 6.7 | 0.67 |
| Prior CVD event | 51 (24.6%) | 33 (19.5%) | 18 (47.4%) | 0.001 |
| Albumin (g/dL) | 3.5 (3.3, 3.7) | 3.5 (3.3, 3.7) | 3.2 (2.9, 3.6) | < 0.001 |
| hsCRP (mg/dL) | 0.16 (0.05, 0.45) | 0.14 (0.05, 0.34) | 0.54 (0.18, 1.84) | < 0.001 |
| Dental health status | ||||
| Number of remaining teeth | 22 (16, 26) | 22 (17, 26) | 19 (8, 24) | 0.006 |
| Number of decayed teeth | 0 (0, 1) | 0 (0, 1) | 1 (0, 3) | 0.002 |
| Number of filled teeth | 7 (4, 13) | 8 (5, 13) | 5 (1, 10) | 0.006 |
| DI-S | 0.8 (0.3, 1.5) | 0.8 (0.3, 1.2) | 1.5 (0.7, 2.0) | < 0.001 |
| Frequency of tooth brushing (/day) | 2 (1, 2) | 2 (1, 2) | 1 (1, 2) | 0.03 |
| Use of interdental cleaning tools | 50 (24.1%) | 45 (26.6%) | 5 (13.2%) | 0.03 |
| Periodontal disease | ||||
| Healthy | 13 (6.3%) | 12 (7.1%) | 1 (2.63%) | 0.54 |
| Mild | 67 (32.4%) | 54 (32.0%) | 13 (34.2%) | |
| Moderate | 82 (39.6%) | 70 (41.4%) | 12 (31.6%) | |
| Severe | 45 (21.7%) | 33 (19.5%) | 12 (31.6%) | |
| PPD≧4 mm (%) | 2.9 (0.6, 9.3) | 2.8 (0.6, 8.4) | 3.8 (0.0, 16.7) | 0.42 |
| BOP (%) | 7.7 (3.4, 18.7) | 7.4 (3.4, 17.3) | 11.0 (2.7, 22.3) | 0.59 |
| Number of P.gingivalis (/ml, log10) | 5.3 (4.4, 5.8) | 5.3 (4.4, 5.8) | 5.6 (5.0, 6.1) | 0.17 |
Values are shown as n (%), mean ± SD, or median (25%, 75%) as appropriate.
BMI, body mass index; BOP, bleeding on probing; BP, blood pressure; CVD, cardiovascular disease; DI-S, simplified debris index; hsCRP, high-sensitivity C-reactive protein; PPD, probing pocket depth.