Characteristics of videos on YouTube on rheumatoid arthritis.
| Characteristic | Useful Videos | Misleading Videos | Patient Views | p |
|---|---|---|---|---|
| No. videos (%) | 56 (54.9) | 31 (30.4) | 15 (14.7) | |
| Total viewership (% total) | 403,144 (69.3) | 157,945 (27.1) | 20,730 (3.6) | |
| Total length, min (% total) | 372.7 (61.8) | 185.1 (30.7) | 45.2 (7.5) | |
| Mean video length, min (SD) | 6.7 (12.0) | 6.0 (4.4) | 3.0 (2.2) | 0.41 |
| Mean duration on YouTube, days (SD) | 684.6 (395.5) | 644.1 (475.8) | 415.9 (321.2) | 0.09 |
| Mean popularity (SD) | 10.0 (16.2) | 21.5 (52.7) | 13.9 (32.7) | 0.32 |
| Mean “likes” (SD) | 8.5 (16.5) | 6.6 (10.0) | 5.4 (10.4) | 0.79 |
| Mean global quality scale score (SD) | 2.9 (1.0) | 1.3 (0.6) | 2.0 (0.9) | < 0.001 |