Comparison of videos by source category
| Channel type | % of total views | CVS | mDISCERN | mJAMA | Age (days) | Median likes/dislikes (range) | Mean subscribers (M) | Mean views (M) |
| Health professional n=25 (20.5%) | 24.11 | 0.93 (0.15) | 3.7 (0.95) | 1.2 (0.66) | 116 (75) | 2.8 (0.16–22.2) | 0.62 | 1.63 |
| Entertainment n=7 (5.7%) | 8.10 | 0.95 (0.96) | 3.6 (1.40) | 1.3 (0.95) | 127 (34) | 14.4 (0.91–52.2) | 6.58 | 1.96 |
| Network news n=42 (34.4%) | 20.92 | 0.90 (0.18) | 3.0 (1.23) | 1.0 (0.68) | 99 (85) | 0.72 (0.15–20.2) | 4.26 | 0.83 |
| Internet news n=6 (4.9%) | 10.16 | 0.83 (0.20) | 2.0 (2.0) | 0.5 (0.84) | 103 (64) | 15.4 (0.30–23.2) | 3.56 | 2.87 |
| Government n=9 (7.4%) | 7.26 | 0.98 (0.07) | 3.8 (0.97) | 1.3 (0.87) | 65 (57) | 0.32 (0.10–2.96) | 0.57 | 1.37 |
| Newspaper n=4 (3.3%) | 4.22 | 0.84 (0.20) | 3.8 (0.96) | 1.3 (0.96) | 310 (180) | 1.58 (0.71–13.9) | 1.71 | 1.79 |
| Consumer n=10 (8.2%) | 8.38 | 0.88 (0.20) | 3.5 (1.65) | 1.1 (0.74) | 223 (157) | 3.0 (1.07–22.8) | 0.91 | 1.42 |
| Education n=19 (15.6%) | 16.85 | 0.98 (0.05) | 4.3 (1.11) | 1.2 (1.17) | 167 (78) | 9.7 (1.23–35.8) | 3.11 | 1.50 |
Mean (SD), unless otherwise indicated. M represents millions.
CVS, COVID-19 Vaccine Score; mDISCERN, modified DISCERN; mJAMA, modified Journal of the American Medical Association.