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Table 4 Mean different from base line (95% CI) of Knee Injury and Osteoarthritis Outcome Scores (KOOS)

From: Effect of hip abductor strengthening exercises in knee osteoarthritis: a randomized controlled trial

 2 wk4 wk6 wk8 wk10 wk
PainHip exercise8.83 (1.82–15.8) p = 0.0114.45 (7.97–20.9) p < 0.0115.88 (9.25–22.5) p < 0.0117.23 (10.6–23.8) p < 0.0118.68 (11.8–25.6) p < 0.01
Control5.05(−1.69–11.8) p = 0.147.94 (1.04–14.8) p = 0.0210.24 (4.22–16.3) p < 0.0114.32 (8.30–20.3) p < 0.0116.69 (10.9–22.5) p < 0.01
SymptomsHip exercise9.95 (3.14–16.8) p < 0.019.85 (2.97–16.7) p < 0.018.23 (1.39–15.1) p < 0.0111.75 (4.83–18.7) p = 0.0214.65 (8.20–21.1) p < 0.01
Control3.68(−2.70–10.1) p = 0.265.14 (− 1.14–11.4) p = 0.116.21 (0.38–12) p = 0.0410.47 (4.70–16.3) p < 0.019.09 (2.84–15.3) p < 0.01
Activities of daily livingHip exercise8.14 (1.05–15.2) p = 0.0214.05 (7.78–20.3) p < 0.0114.84 (8.63–21) p < 0.0117.08 (11.1–23.0) p < 0.0115.19 (8.77–21.6) p < 0.01
Control4.91(−1.86–11.7) p = 0.167.29 (0.38–14.2) p = 0.048.72 (1.98–15.5) p = 0.0111.18 (4.47–17.9) p < 0.0113.84 (7.29–20.4) p < 0.01
Sports and recreationHip exercise5.24(−5.54–16) p = 0.343.89(−6.02–13.8) p = 0.449.99(− 1.14–21.1) p = 0.0811.22(− 1.35–23.8) p = 0.0817.79 (5.08–30.5) p < 0.01
Control4.55(− 13.8–7.53) p = 0.46.25(− 6–15.1) p = 0.2410.13(− 4.22–16.7) p = 0.0713.34(− 0.74–21) p = 0.0222.69 (2.6–24.1) p < 0.01
Quality of lifeHip exercise8.4 (0.35–16.5) p = 0.0413.92 (5.38–22.5) p < 0.0117.28 (8.59–26) p < 0.0119.92 (11–28.9) p < 0.0124.12 (15.6–32.6) p < 0.01
Control7.32(− 0.36–15) p = 0.0610.2 (2.33–18.1) p = 0.0113.74 (6.09–21.4) p < 0.0120.1 (12.4–27.8) p < 0.0127.09 (19.3–34.9) p < 0.01