Subjects randomized to group (n) | Intervention | P value | |||
8-week telemedicine 30 | 4-week telemedicine 20 | 4-week in-person 15 | No intervention | ||
15 | |||||
Median BDI (IQR) on a 0–63 scale | 11 (6 to 16) | 10 (8 to 19) | 8 (5 to 15) | 11 (5 to 27) | 0.5 |
Post–preintervention | −5 (−8 to 2) | −1 (−3 to 1) | 0 (−3 to 4) | −1 (−4 to 4) | 0.33 |
Missing | 6 | 3 | 6 | 2 | |
Median STAI-S(IQR) on a 0–80 scale | 40 (27 to 50) | 34 (29 to 41) | 37 (26 to 41) | 45 (27 to 50) | 0.68 |
Median (IQR) post–preintervention | −1 (−7 to 7) | −4 (−8 to 4) | 1 (−6 to 3) | 0 (−5 to 2) | 0.87 |
6 | 3 | 6 | 2 | ||
Median STAI-T(IQR) on a 0–80 scale | 38 (25 to 45) | 37 (31 to 43) | 37 (31 to 40) | 42 (24 to 52) | 0.88 |
Median (IQR) post–preintervention | −3 (−10 to 2) | 1 (−1 to 2) | 1 (−4 to 8) | −1 (−5 to 4) | 0.27 |
Missing | 6 | 3 | 6 | 2 | |
Median PCS score (IQR) on a 0–52 scale | 19 (12 to 27) | 19 (9 to 25) | 22 (11 to 28) | 24 (16 to 31) | 0.4 |
Unadjusted median (IQR) post–preintervention | −11 (−18 to −8) | −10 (−18 to −3) | −7 (−17 to −2) | −3 (−5 to 0) | 0.02 |
Adjusted median (IQR) post–preintervention* | −12 (−19 to −9) | −16 (−20 to −9) | −12 (−15 to −8) | −7 (−12 to 0) | 0.02 |
Missing | 6 | 3 | 6 | 2 | |
NRS pain of the knee on a 0–10 scale | |||||
Median NRS (IQR) at rest | 4 (2 to 6) | 4 (2 to 6) | 4 (3 to 6) | 5 (4 to 6) | 0.65 |
Median (IQR) post–preintervention | 0 (−1 to 1) | −1 (−3 to 1) | −1 (−2 to 1) | 1 (−2 to 1) | 0.64 |
Median NRS (IQR) with movement | 7 (5 to 8) | 7 (5 to 10) | 6 (5 to 7) | 8 (3 to 10) | 0.47 |
Median (IQR) post–preintervention | 0 (−1 to 1) | 0 (−2 to 20 | −2 (−4 to 0) | 0 (−2 to 2) | 0.1 |
Missing | 6 | 3 | 6 | 2 | |
Median WOMAC (IQR) scores | |||||
Pain subscale on a 0–50 scale | 26 (18 to 38) | 26 (13 to 42) | 28 (10 to 43) | 26 (12 to 36) | 0.29 |
Median (IQR) post–preintervention | −2 (−14 to 5) | 0 (−4 to 5) | −2 (−14 to 1) | −1 (−5 to 3) | 0.7 |
Stiffness subscale on a 0–20 scale | 13 (7 to 16) | 12 (10 to 17) | 14 (5 to 19) | 14 (5 to 18) | 0.52 |
Median (IQR) post–preintervention | −2 (−4 to 1) | −2 (−3 to 2) | 0 (−4 to 1) | 0 (−3 to 1) | 0.98 |
Physical function on a 0–170 scale | 88 (58 to 118) | 74 (33 to 145) | 78 (33 to 145) | 87 (33 to 106) | 0.97 |
Median (IQR) post–preintervention | −2 (−23 to 10) | −1 (−12 to 11) | −12 (−20 to 2) | 6 (−36 to 14) | 0.7 |
Total score on a 0–240 scale | 129 (91 to 169) | 108 (69 to 170) | 110 (59 to 202) | 130 (47 to 152) | 0.9 |
Median (IQR) post–preintervention | −9 (−30 to 16) | −6 (−27 to 54) | −14 (−42 to 1) | 1 (−39 to 14) | 0.49 |
Missing | 6 | 3 | 6 | 2 |
Data presented as median (first to third quartile).
*Adjusted differences determined using a generalized estimating equation model with group, sex and race as fixed effects and age, STAI-T and baseline PCS as random factors.
BDI, Beck’s Depression Index; STAI-S, State-Trait Anxiety Inventory State; STAI-T, State Trait Anxiety Index Trait; PCS, Pain Catastrophizing Scale; WOMAC, Western Ontario and McMaster Universities Arthritis Index.