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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