Figure 4. Secondary Outcome Measures in a Study of the Effect of Platelet-Rich Plasma (PRP) Injections vs Placebo on Ankle Symptoms and Function in Patients With Ankle Osteoarthritis.

See Table 2 footnotes for scale definitions. The other secondary outcome measures can be found in Supplement 2 (eTables 4-13 and eFigures 1-3). The boxes show the median and IQR of the data, with the bottom and top indicating the 25th and 75th percentiles, respectively. The upper whisker extends from the top of the box to the largest value no further than 1.5 times the IQR. The bottom whiskers extend from the bottom of the boxes to the smallest value no further than 1.5 times the IQR. Dots indicate outliers outside the whisker range.