Fig. 4From: Decreased serum superoxide dismutase concentration has a high value for the diagnosis of periprosthetic joint infection—a single-center, retrospective studyBoxplots showing the distribution of CRP (left) and SOD (right) between the culture-positive group (n = 32) and culture-negative group (n = 18). The horizontal line represents the median level, the upper and lower lines represent the interquartile rangeBack to article page