Table 6 The median VPI values, median scores of reliability and quality of different video source or content

Video source

 Academic

20.00 (96.15)

3.00 (1.00)

4.00 (1.00)

4.00 (1.25)

14.50 (9.75)

 Clinician

17.29 (76.48)

2.00 (1.00)

3.00 (1.50)

3.00 (2.00)

11.00 (10.00)

 Non-clinician

28.06 (111.34)

3.00 (1.00)

3.00 (1.00)

2.00 (0.00)

5.00 (4.00)

 Trainer

101.27 (56.84)

1.50 (1.75)

1.50 (1.00)

1.00 (0.75)

2.00 (3.00)

 Medical source

12.34 (19.04)

2.00 (1.00)

3.00 (0.00)

2.00 (1.00)

6.00 (9.25)

 Commercial source

11.06 (47.47)

2.00 (1.75)

2.00 (2.00)

2.00 (1.75)

6.50 (4.75)

 P value

0.009

0.001

 < 0.001

 < 0.001

 < 0.001

 Significant differences in post-hoc tests^✝

Non-clinician vs. medical source

Academic vs. clinician, non-clinician, trainer, medical source, commercial source

Academic vs. clinician, non-clinician, trainer, medical source, commercial source

Academic vs. non-clinician, trainer, medical source, commercial source; clinician vs. non-clinician, trainer

Academic vs. non-clinician, trainer, medical source, commercial source; clinician vs. non-clinician, trainer

Video content

 Exercise training

99.87 (170.16)

3.00 (1.00)

2.00 (1.00)

2.00 (1.75)

4.00 (5.00)

 CS-specific information

19.95 (45.80)

2.00 (1.00)

3.00 (1.00)

2.00 (1.00)

7.00 (6.00)

 Surgical technique

3.52 (13.89)

3.00 (2.00)

4.00 (2.25)

3.00 (2.00)

12.50 (13.25)

 Non-surgical management

22.24 (69.35)

3.00 (1.00)

3.00 (1.50)

3.00 (2.00)

14.00 (13.25)

 Advertisement

11.71 (12.97)

2.00 (1.00)

2.00 (2.00)

2.00 (1.00)

5.50 (3.50)

 P value

 < 0.001

0.052

0.001

 < 0.001

0.001

 Significant differences in post-hoc tests^✝

Exercise training vs. CS-specific information, surgical technique, advertisement;

Surgical technique vs. exercise training, advertisement

Surgical technique vs. exercise training, advertisement; non-surgical management vs. exercise training, advertisement

Surgical technique and non-surgical management vs. exercise training