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Table 5 Detailed characteristics of videos based on usefulness (median [quartile range])

From: YouTube™ as a source of information on food poisoning

  Slightly useful
(n = 38)
Useful
(n = 97)
Very useful
(n = 25)
H P
Likes 5.0 (0.8,34.3) 10.0 (1.5,92.0) 14.0 (0.0,203.5) 1.451 0.484
Dislikes 0.5 (0.0,5.0) 1.0 (0.0,12.0) 0.0 (0.0,9.0) 1.968 0.374
Posted days 1158.0 (715.8,1844.5) 1378.0 (559.0,2019.0) 707.0 (275.0,1268.0) 6.300 0.043*
Duration (minutes) 2.0 (1.0,5.0) 4.0 (2.0,8.5) 7.0 (4.0,18.5) 21.248 < 0.001*
Views 2007.5 (684.8,10202.5) 5560.0 (975.5,19374.0) 1767.0 (228.5,39970.5) 3.348 0.187
Views/day 2.3 (0.3,13.2) 4.7 (0.7,20.4) 2.8 (0.4,43.5) 1.507 0.471
Total duration (minutes [%]) 134 (11.22%) 739 (61.89%) 321 (26.88%)
Total views (n [%]) 398259 (4.85%) 6886005 (83.86%) 926937 (11.29%)
Category    
 Education 14 35 17   
 Entertainment 4 8 0   
 News & Politics 9 24 2   
 People & Blogs 11 30 6   
  1. *statistically significant