Table 3.

Between-group comparisons for patient-reported outcomes at 6 and 18 weeks.

Outcomes		Face-to-face group, mean (SD)	Telerehabilitation group, mean (SD)	Mean difference (95% CI)
Worst knee pain (visual analog scale, range: 0-100)
	6 weeks	32.31 (22.51)	42.31 (23.15)	−10.00 (−26.36 to 6.36)
	18 weeks	18.46 (18.46)	33.08 (22.13)	−14.62 (−31.25 to 2.02)
Knee-related quality of life (Knee Injury and Osteoarthritis Outcome Score-Quality of Life subscale, range: 0-100)
	6 weeks	63.94 (16.76)	56.73 (21.87)	7.21 (−7.27 to 21.69)
	18 weeks	68.27 (21.57)	73.08 (21.71)	−4.81 (−20.56 to 10.95)
Disability (Anterior Knee Pain Scale, range: 0-100)
	6 weeks	78.54 (12.61)	77.69 (12.94)	0.85 (−8.34 to 10.03)
	18 weeks	86.54 (10.59)	84.62 (13.49)	1.92 (−6.99 to 10.84)
Pain catastrophizing (Pain Catastrophizing Scale, range: 0-52)
	6 weeks	8.23 (6.92)	14.46 (10.26)	−6.23 (−13.70 to 0.76)
	18 weeks	5.92 (6.02)	8.54 (9.44)	−2.62 (−8.29 to 3.06)
Kinesiophobia (Tampa Scale for Kinesiophobia, range: 17-68)
	6 weeks	34.15 (7.72)	35.31 (5.01)	−1.15 (−6.07 to 3.76)
	18 weeks	30.38 (7.12)	31.77 (5.43)	−1.39 (−6.07 to 3.30)
Knee self-efficacy (Knee Self-Efficacy Scale, range: 0-10)
	6 weeks	6.95 (0.93)	6.74 (1.75)	0.21 (−0.84 to 1.25)
	18 weeks	7.64 (1.45)	7.36 (1.98)	0.28 (−1.08 to 1.65)