Table 2.
Association between ISG score and haematological parameters
| ISG negative (n = 101) | ISG positive (n = 63) | p value | |
|---|---|---|---|
| Haemolytic anaemia | 1/99 (1.01) | 1/60 (1.67) | 0.614 |
| Haemoglobin (mg/dl) | 13.4 (12.5, 13.9) | 12.9 (11.6, 13.3) | 0.004 |
| Total WCC (109/l) | 5.80 (4.55, 7.25) | 4.95 (3.60, 5.80) | 0.001 |
| Lymphocyte count (109/l) | 1.62 (1.27, 2.10) | 1.31 (0.96, 1.75) | 0.002 |
| Neutrophil count (109/l) | 3.39 (2.47, 4.51) | 2.81 (1.99, 3.86) | 0.020 |
| Platelet count (109/l) | 253 (221, 311) | 249 (191, 286) | 0.078 |
Results are presented as the n(%) or median (IQR) as appropriate. Comparisons between groups were made using the Mann-Whitney U test (continuous variables) or Fisher’s exact test (categorical variables)
ISG = interferon-stimulated gene, WCC = white cell count
†As per the ACR SLE Classification criteria