Laboratory measures of cases and controls. Results are mean ± SD or median (interquartile range). Comparison between the 2 groups using conditional logistic regression; p < 0.05 considered a statistically significant difference.
| Laboratory Measurements | Cases, n = 104 | Controls, n = 104 | p |
|---|---|---|---|
| Hemoglobin, g/l | 128.8 ± 17.7 | 125.5 ± 16.5 | 0.109 |
| WBC, 1000/μl | 6.7 ± 3.1 | 6.6 ± 3.0 | 0.908 |
| Platelet, 1000/μl | 254.7 ± 77.1 | 249.4 ± 89.1 | 0.606 |
| INR | 1.0 (0.9, 1.1) | 1.0 (0.9, 1.0) | 0.429 |
| C3, g/l | 1.0 ± 0.3 | 0.9 ± 0.3 | 0.649 |
| C4, g/l | 0.2 ± 0.1 | 0.2 ± 0.1 | 0.210 |
| IgG, g/l | 14.9 ± 7.6 | 13.8 + 4.7 | 0.754 |
| IgM, g/l | 1.1 ± 0.7 | 1.6 ± 1.0 | 0.047 |
| Anti-dsDNA* | 198.7 ± 171.2 | 103.4 ± 118.8 | 0.353 |
| Albumin, g/l | 42.6 ± 5.8 | 41.3 ± 6.9 | 0.097 |
| AST, IU/l | 54.5 (47.5, 68.0) | 25.0 (21.0, 31.0) | 0.018 |
| Normal 5–34 | |||
| ALT, IU/l | 68.0 (60.0, 92.0) | 23.0 (17.0, 33.0) | 0.001 |
| Normal 7–40 | |||
| ALP, U/l | 78.0 (62.0, 95.0) | 67.0 (54.0, 86.0) | 0.015 |
| Normal 40–150 | |||
| Cholesterol, mmol/l | 4.9 ± 1.4 | 4.8 ± 1.1 | 0.828 |
| Triglycerides, mmol/l | 1.6 (1.0, 2.6) | 1.4 (1.0, 2.2) | 0.210 |
| Glucose, mmol/l | 4.6 (4.0, 5.2) | 4.7 (4.3, 5.4) | 0.696 |
| Antinuclear antibody | 58 (17.2) | 21 (34.4) | 0.099 |
↵* Antibody by Farr assay. WBC: white blood cell count; AST: aspartate transaminase; ALT: alanine transaminase; ALP: alkaline phosphatase; INR: international normalized ratio.