Table 5.
Mean Quality and Reliability Scores per Video Content and Video Source Variables
|
Grouping Variables |
JAMA |
GQS |
PCLS |
|---|---|---|---|
| Mean (SD) | Mean (SD) | Mean (SD) | |
| Video content | |||
| Exercise training | 1.3 (0.5) | 2.5 (0.6) | 2.8 (1.7) |
| Disease-specific | 2.1 (1.2) | 2.6 (1.1) | 3.3 (2.9) |
| Patient experience | 0.0 (0.0) | 1.5 (0.7) | 1.0 (0.4) |
| Surgical technique | 2.6 (1.3) | 1.7 (1.3) | 2.4 (2.1) |
| Nonsurgical | 1.6 (0.2) | 1.5 (0.6) | 3.0 (1.1) |
| Advertisement | 1.0 (0.7) | 2.0 (0.3) | 2.1 (0.6) |
| Video source | |||
| Academic | 1.0 (0.4) | 1.0 (0.1) | 0.7 (0.6) |
| Physician | 2.6 (0.9) | 2.1 (1.2) | 3.0 (2.8) |
| Nonphysician | 1.8 (1.4) | 2.3 (0.9) | 3.1 (2.6) |
| Trainer | 1.9 (1.6) | 3.0 (1.2) | 2.4 (1.9) |
| Medical | 2.8 (1.0) | 2.9 (1.2) | 3.7 (2.6) |
| Patient | 0.0 (0.0) | 2.0 (0.4) | 2.0 (0.3) |
| Commercial | 1.2 (0.4) | 1.8 (0.8) | 2.4 (1.7) |
GQS, Global Quality Score; JAMA, Journal of the American Medical Association; PCLS, Posterior Cruciate Ligament Score; SD, standard deviation of the mean.
P value for video content between-group effects: JAMA = 0.098, GQS = 0.22, PCLS = 0.82.
P value for video source between-group effects: JAMA = 0.037, GQS = 0.11, PCLS = 0.75.