C‐reactive protein levels for early detection of postoperative infection after fracture surgery in 787 patients

Figures & data

Figure 1. CRP concentrations in the different fracture groups as shown by boxplots with median and interquartiles, and tenth and ninetieth percentiles.

Median CRP concentrations (mg/L) for each group on the second postoperative day, with 90th percentiles

Group	No. of fractures	Fracture location	Median	90th percentile
1	362	femur	136	221
2	113	tibia	78	180
3	88	humerus	82	191
4	61	elbow/forearm	44	191
5	163	ankle/small bones	39	90

Figure 2. Time‐dependent reference limits (median, and tenth and ninetieth percentiles) after uneventful operative fracture treatment (black) and in the 17 cases of deep wound infection (red).

Figure 3. Receiver operating characteristic (ROC) curve for calculation of a cutoff level for the deep wound infection after the fourth day of surgery.