However, in the multivariate analysis, only ex vivo IFN-γ production ≤ 7.19 (odds ratio (OR) 44.059, 95% confidence interval (CI) 7.315–265.340; p < 0.001), albumin (OR 0.087, 95% CI 0.019–0.395; p = 0.001), AST (OR 1.196, 95% CI 1.064–1.344; p = 0.002), and ALT (OR 0.894, 95% CI 0.829–0.963; p = 0.003) were revealed to be useful in discriminating active and inactive SLE (Table 3). The gene discussed is GPT; the disease is systemic lupus erythematosus.