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. 2020 Mar 25:e200024. Online ahead of print. doi: 10.1001/jamasurg.2020.0024

Figure 2. Comparison of Change Scores With Satisfaction With Results of Surgery Measured Using the Self-Administered Patient Satisfaction Scale (SAPS).

Figure 2.

A, Patients who underwent total hip arthroplasty. B, Patients who underwent total knee arthroplasty. A change score is defined as the postoperative score minus the preoperative score. SAPS question 1 is about satisfaction with results of surgery (with a score of 25 = very dissatisfied, 50 = somewhat dissatisfied, 75 = somewhat satisfied, and 100 = very satisfied). Pearson correlation coefficients (r) are shown. The ends of the boxes represent the 25th and 75th percentiles. The horizontal line inside the box indicates the median. The whiskers represent the upper and lower adjacent values. Outlier data are shown as circles plotted beyond the whiskers. ADL indicates activities of daily living; HOOS, Hip Disability and Osteoarthritis Outcome Score; JR, joint replacement; KOOS, Knee Injury and Osteoarthritis Outcome Score; PROM, patient-reported outcome measure; and QoL, quality of life.