CRP and neoplasm: Similarly, in patients undergoing DMARD treatment (n=121), a significant relationship was observed between tumour M2-PK level and DAS28-ESR (r=0.539, 95% CI 0.399–0.655, p<0.001) and DAS28-CRP (r=0.590, 95% CI 0.460–0.695, p<0.001) (Supplementary Table 1).