Figure 4

Comparisons of drug retention rate of abatacept estimated by Kaplan–Meier curves between ACPA-negative [ACPA (−)] and ACPA-positive [ACPA (+)] groups. (A) Overall drug retention rate. (B) Drug retention rate with discontinuation due to inadequate response as the endpoint. (C) Drug retention rate with discontinuation due to adverse events as the endpoint. ACPA anti-citrullinated protein/peptide antibody.