Figure 4
Box-whisker plots showing the relation between the global functional performance scale and the comparison measures for 779 patients with rheumatoid arthritis. The horizontal line in each box in the two top graphs represents the median, and the box height represents the interquartile range; whiskers represent the range of adjacent data. The deformed-joint count (top left) decreased with rising global functional performance, trend P ≤ 0.001; physical disability decreased (top right); trend P ≤ 0.001. The probability of working full-time or part-time increased (bottom left), and the probability of work disability and death within 6 years decreased (bottom right); trend P ≤ 0.001 for each.