Table 2.
Serum and urine markers for control subjects and periodontitis patients.
| Marker | Group | Mean | SD | Median | Minimum | Maximum |
|---|---|---|---|---|---|---|
| Serum albumin (g/dL) | Control | 4.9 | 0.5 | 5.0 | 3.4 | 5.8 |
| Test | 4.7 | 0.4 | 4.7 | 4.1 | 5.6 | |
| Serum creatinine (mg/dL) | Control | 0.9 | 0.2 | 0.9 | 0.6 | 1.3 |
| Test | 1.0 | 0.2 | 1.0 | 0.7 | 1.3 | |
| Urine creatininea (mg/kg.24h) | Control | 18.45 | 4.30 | 18.09 | 11.44 | 29.02 |
| Test | 17.14 | 4.75 | 16.33 | 10.31 | 32.99 | |
| Serum uric acid (mg/dL) | Control | 4.3 | 1.7 | 4.1 | 1.3 | 8.0 |
| Test | 4.9 | 2.1 | 5.0 | 1.4 | 8.9 | |
| Urine uric acid (mg/24h) | Control | 542.2 | 219.0 | 520.1 | 194.6 | 1089.0 |
| Test | 526.5 | 222.1 | 471.1 | 203.5 | 1055.0 | |
| Serum urea (mg/dL) | Control | 30 | 9 | 30 | 12 | 48 |
| Test | 29 | 10 | 28 | 17 | 59 | |
| Urine ureaa (g/24h) | Control | 25.9 | 8.0 | 23.5 | 13.1 | 44.6 |
| Test | 24.5 | 11.0 | 23.8 | 9.0 | 52.8 | |
| Urinary volume (mL/24 h) | Control | 1600 | 769 | 1368 | 475 | 3300 |
| Test | 1402 | 626 | 1405 | 490 | 2700 |
SD: standard deviation. Statistical analysis: Student’s t-test (P<.05);
a:
data transformed into logarithms prior to t-test.