Figure 2: Five-year drug survival of adalimumab, etanercept, and ustekinumab for psoriatic arthritis. (a) The 5-year survival rates for psoriatic arthritis are significantly different among adalimumab, etanercept, and ustekinumab (P = 0.031). Among the three biologic agents, adalimumab has a lower 5-year survival rate than ustekinumab and etanercept. (b) There is no significant difference in 5-year drug survival of ustekinumab between patients with psoriatic arthritis NSAIDs and patients with psoriatic arthritis regardless of non-steroidal anti-inflammatory drugs use. (c) 5-year drug survival of ustekinumab in patients with psoriatic patients using NSAIDs is higher than 5-year drug survival of adalimumab and etanercept in patients with psoriatic arthritis regardless of NSAIDs use (P = 0.036). NSAIDs, non-steroidal anti-inflammatory drugs.