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. 2013 Feb 13;15(2):e30. doi: 10.2196/jmir.2237

Table 2.

Assessment of the 20 most-viewed anorexia-related videos on YouTube.

Variable Video type ORa (95% CI) P value

Pro-anorexia Informative


n % n %

Total views 9.51 million 100 51.62 million 100

Favorite 24,462 0.26 39,424 0.08 3.37 (3.32-3.43) <.001
Total Responses b 15,209 0.16 45,486 0.09 1.82 (1.78-1.85) <.001

Likes 12,560 82.58c 40,332 88.67c 0.61 (0.58-0.64) <.001

Dislikes 2649 17.42c 5154 11.33c 1.65 (1.57-1.74) <.001

a OR: odds ratio (informative group is reference).

b Response: videos were rated with like or dislike.

cThe percentages of likes and dislikes were calculated by using total responses as denominator.