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. 2021 Sep 20;7(3):e27063. doi: 10.2196/27063

Table 2.

Comparing Facebook and YouTube video characteristics by means and 95% confidence intervals, March-April 2020.

Characteristics Prostate cancer BRCA/genetic testing (n=119) Breast cancer BRCA/genetic testing (n=111)

Facebook (n=58) YouTube (n=61) Facebook (n=66) YouTube (n=45)
Views 22,595 (4530-40,659) 282 (203-360) 22,169 (4529-40,162) 3,250 (1467-5033)
Likes 204 (42-366) 3 (2-4) 227 (75-379) 13 (7-19)
Comments 29.4 (9.9-49.0) 0.2 (0.1-0.3) 17.8 (5.4-30.3) 0.5 (0.2-0.8)
Likes per view 0.018 (0.011-0.024) 0.012 (0.009-0.015) 0.026 (0.013-0.039) 0.005 (0.004-0.007)
Engagement ratea 1.90 (1.29-2.51) 1.31 (0.94-1.68) 2.77 (1.47-4.07) 0.58 (0.43-0.72)
Video length, mm:ss 6:28 (2:33-10:23) 10:14 (6:42-13:47) 3:17 (2:25-4:10) 7:16 (3:23-11:09)

aEngagement rate is the addition of number of likes, dislikes, and comments divided by the total number of views multiplied by 100. Videos within are mutually exclusive.