Table 2.

Most discriminating variables for the prediction of treatment response in univariate analysis^*

Variable	ROC AUC (95% CI)	P
Age	0.58 (0.47–0.69)	0.156
Urinary protein-to-creatinine ratio	0.65 (0.55–0.76)	0.005
Serum C4	0.57 (0.46–0.66)	0.202
Estimated GFR	0.62 (0.52–0.72)	0.019
OPG	0.67 (0.57–0.78)	0.002
IFNα2	0.58 (0.47–0.69)	0.150
IL-2Rα	0.63 (0.51–0.75)	0.034
IL-8	0.64 (0.54–0.75)	0.008
IP-10	0.58 (0.47–0.69)	0.149

^*ROC AUC = receiver operating characteristic area under the curve; 95% CI = 95% confidence interval; GFR = glomerular filtration rate; OPG = osteoprotegerin; IFNα2 = interferon α2; IL-2Rα = interleukin-2 receptor α; IP-10 = interferon-inducible protein