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. 2021 Aug 17;22:700. doi: 10.1186/s12891-021-04521-0

Table 2.

Patient characteristics

Sociodemographic Pooled sample
(n = 131)
Preoperative sample (n = 72) Postoperative sample
(n = 59)
Age; mean (SD),(yr) 66.3 (9.4) 66.2 (9.3) 66.4 (9.6)
Self-report measures; median (25th – 75th percentile)
 OKS—Activity & Participation (OKS-APQ) (scale 0–100) 21.9 (6.3–56.3) 10.9 (0–23.4) 62.5 (25–84.4)
 Oxford Knee Score (OKS) (scale 0–48) 29 (20–39) 22 (15–29) 39 (30–44)
 VAS Pain (scale 0–100) 30 (10.5–63.5) 59 (31–74) 11 (4–28)
Quality of life
  Physical component (SF-36-PCS) (scale 0–100) 34.1 (27.8–40.8) 30.6 (25.8–34.8) 39.8 (33.6–46.8)
  Mental component (SF-36-MCS) (scale 0–100) 52.8 (42.5–57.2) 50.6 (41.7–56.4) 53.7 (48.0–57.3)
 Forgotten Joint Score (FJS) (scale 0–100) NA NA 37.5 (14.6–60.4)

SD indicates standard deviation, OKS APQ Oxford Knee Score—Activity and Participation Questionnaire, OKS Oxford Knee Score, VAS Visual Analogue Scale, SF-36 36-item Short Form Health Survey Questionnaire, SF-36-MCS Mental Component Score, SF-36-PCS Physical Component Score, FJS Forgotten Joint Score