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Table 1 Descriptive analysis of the YouTube videos

From: YouTube videos as a source of medical information during the Ebola hemorrhagic fever epidemic

Variables High relevance videos
N = 42
Median (IQR) or mean (SD)
Low relevance videos
N = 44
Median (IQR) or mean (SD)
P value
Video source
 GA/NA 18 18 0.85
 IU/W 24 26  
Video characteristics
 Number of views 186,705 (52,846–607,829) 43,796 (10,709–86,264) <0.001
 Number of channel subscription 517,489 (57,399–972,098) 118,650 (41,218–928,585) 0.06
 Number of likes 1119 (373–2913) 224 (87–568) <0.01
 Number of dislikes 105 (43–348) 25 (8–53) <0.01
 Like/dislike ratio 8.2 (5.1–18.8) 10.06 (7.9–14.9) 0.74
 Number of likes/1000 views 6.8 (2.9–9.5) 7.90 (3.8–12.8) 0.20
 Number of dislikes/1000 views 0.6 (0.3–1.1) 0.6 (0.2–1.2) 0.74
 Time watched (years) 2 (0.6–5.2) 0.5 (0.2–0.9) <0.01
 Average view duration (s) 323 (207–529) 392 (221–664) 0.34
 Number of new subscriptions 208 (36–717) 32 (9–86) <0.001
 Number of shares 519 (128–1026) 98 (52–233) <0.01
Video information and quality index (VIQI) content assessment
 Flow 3.67 (1.05) 3.11 (0.81) 0.01
 Information 2.71 (1.58) 2.30 (1.05) 0.38
 Quality 2.21 (1.00) 2.16 (0.91) 0.84
 Precision 3.00 (1.51) 2.02 (0.85) <0.01
 Total score 11.60 (4.64) 9.59 (2.44) 0.16
Medical information and content index (MICI) content assessment
 Prevalence 1.93 (1.88) 1.16 (1.64) 0.03
 Transmission 2.12 (1.90) 1.25 (1.70) 0.04
 Clinical symptoms 1.88 (1.98) 0.68 (1.43) <0.01
 Screening/testing 0.62 (1.12) 0.341 (0.89) 0.12
 Treatment/outcomes 1.40 (1.73) 0.75 (1.40) 0.03
 Total score 7.95 (7.80) 4.18 (5.69) 0.03
  1. GA/NA Government/News agencies, IU/W Individual users/Websites