Table 3.
Video features according to the video quality
| Low quality | Fair quality | High quality | p* | |
|---|---|---|---|---|
| Duration (sec) | 492 (78–1836) | 935 (84–3852) | 1327 (207–6680) | 0.031 |
| Time since upload (day) | 1236 (308–3588) | 712.5 (136–3222) | 1070.5 (248–3520) | 0.246 |
| Number of views | 964 (277–6978) | 1179 (216–198679) | 1604 (271–264394) | 0.930 |
| View ratio | 1.2 (0.1–17.2) | 3 (0.2–123.2) | 1.9 (0.1–188.6) | 0.402 |
| Number of likes | 13 (1–155) | 25 (2–1400) | 14 (0–1600) | 0.448 |
| Number of dislikes | 1 (0–8) | 0.5 (0–79) | 0 (0–176) | 0.632 |
| Like ratio | 94.3 (80–100) | 98.6 (88.6–100) | 100 (83–100) | 0.405 |
| VPI | 1.2 (0.1–16.3) | 2.8 (0.2–116.7) | 1.8 (0.1–169.9) | 0.353 |
| DISCERN reliability | 17 (10–27) | 26 (013–33) | 33 (11–38) | < 0.001 |
| DISCERN treatment | 13 (12–26) | 18.5 (12–28) | 29 (10–34) | 0.001 |
| DISCERN quality | 2 (1–4) | 3 (2–4) | 4 (2–5) | < 0.001 |
| DISCERN total | 33 (23–51) | 48 (30–65) | 65 (24–76) | < 0.001 |
Results are presented as median (min–max)
GQS Global Quality Scale, VPI Video Power Index
*Kruskal–Wallis test