Table 1.
Laboratory characteristics of patients with bacterial (OM) and tuberculous (TB) osteomyelitis and control subjects
| Controls | OM patients | TB patients | |
|---|---|---|---|
| Hematology | |||
| Hemoglobin (g/dL) | 13.1 (0.84) | 9.47 (0.75)* | 10.2 (0.90)* |
| Mean corpuscular volume (fL) | 83.8 (2.6) | 80.4 (4.0) | 82.3 (1.6) |
| Total leukocyte count (×109/L) | 5.7 (0.68) | 9.4 (1.17)* | 7.0 (0.63) |
| Lymphocyte count (×109/L) | 2.7 (0.3) | 3.3 (0.5) | 3.1 (0.4) |
| Platelet count (×109/L) | 235 (24) | 525 (84)* | 299 (46)† |
| Erythrocyte sedimentation rate (mm/1 h) | 33.4 (11) | 96.8 (11)* | 81.7 (11.4)* |
| Biochemistry | |||
| Sodium (mmol/L) | 139 (0.84) | 135 (1.1)* | 138 (1.5) |
| Bicarbonate (mmol/L) | 19.5 (0.50) | 19.5 (0.67) | 20.7 (0.60) |
| Urea (mmol/L) | 3.61 (0.24) | 3.05 (0.31) | 3.41 (0.21) |
| Creatinine (μmol/L) | 79.2 (3.3) | 64.0 (4.7) | 68.5 (3.3) |
| Total protein (g/L) | 78.2 (1.9) | 75.3 (2.4) | 81.4 (2.5) |
| Albumin (g/dL) | 40.6 (0.88) | 32.4 (1.7)* | 34.5 (2.5)* |
| Phosphate (mmol/L) | 1.17 (0.065) | 1.30 (0.06) | 1.22 (0.06) |
| Bilirubin (μmol/L) | 9.92 (0.73) | 6.69 (1.8) | 7.50 (1.5) |
| Aspartate transaminase (IU/L) | 46.9 (3.6) | 56.3 (6.7) | 49.0 (4.8) |
| Urate (mmol/L) | 0.31 (0.02) | 0.28 (0.02) | 0.33 (0.02) |
| C-reactive protein (mg/L) | 1.85 (0.88) | 44.2 (15)* | 35.8 (18) |
| Serology, % human immunodeficiency virus– positive |
53.8 | 15.4* | 58.3† |
NOTE. Data are mean (±SE); P determined by unpaired t test.
*
P < .05 vs. controls.
†
P <.05 for OM vs. TB patients.