Figure 1From: Switching TNF antagonists in patients with chronic arthritis: an observational study of 488 patients over a four-year periodSurvival curve of tumor necrosis factor (TNF) antagonists in BIOBADASER during the first two years of use, ranked by order of treatment. The numbers under the curves represent the patients known to be still on treatment by the end of the interval. Differences in the number between intervals do not mean that patients failed (stopped TNF antagonist). They actually represent the patients known to be still on treatment as of the time marked.Back to article page