Table 5 Quality comparison between the videos uploaded by professionals and non-professionals.

PEMAT-T

76.0

75

11–100

67–86

71.4

71

37–100

67–79

0.002^a

 PEMAT-U

74.4

73

25–100

67–82

69.3

70

33–100

64–73

0.004^a

 PEMAT-A

83.1

75

33–100

67–100

77.9

75

25–100

67–100

0.055^a

VIQI-sum

13.8

14

7–18

13–15

12.8

13

5–17

11–15

<0.001^a

 VIQI-1

2.4

2

1–5

2–3

2.3

2

1–5

1–3

0.187^a

 VIQI-2

3.5

4

1–5

3–4

3.1

3

1–5

3–4

<0.001^a

 VIQI-3

3.2

3

1–5

3–4

3.0

3

1–4

3–3

0.013^a

 VIQI-4

4.6

5

1–5

4.5–5

4.3

5

1–5

4–5

0.003^a

GQS

3.0

3

1–5

3–3

2.7

3

1–4

2–3

0.001^a

mDISCERN-sum

2.8

3

1–4

3–3

2.8

3

0–4

3–3

0.613^a

 mDISCERN-1

192(97.5%)

97(94.2%)

0.265^c

 mDISCERN-2

180(91.4%)

96(93.2%)

0.578^b

 mDISCERN-3

171(86.8%)

82(79.6%)

0.104^b

 mDISCERN-4

4(2.0%)

4(3.9%)

0.570^c

 mDISCERN-5

14(7.1%)

9(8.7%)

0.614^b