Table 1.

Video characteristics and scores by source.

	Source
Characteristic	Medical (n=22)	Non-Medical (n=17)	p-value
Length (minutes)	4.4 (2.3–6.8)	8.5 (5.4–12.6)	0.04
Upload duration (days)	1532 (681–2755)	1667 (1006–1794)	0.83
Total views	17157 (10861–34264)	26290 (11526–44096)	0.62
Views per day	18.3 (6.3–37.6)	20.6 (6.9–62.0)	0.64
Engagement ratio	0.006 (0.003–0.010)	0.007 (0.005–0.017)	0.25
Score
Accuracy (DAS)	4 (4–4)	1.5 (1–3)	<0.01
Quality (GQS)	3.5 (3.5–4.5)	1.5 (1.5–2.0)	<0.01

Continuous variables are expressed as median (interquartile range) and were analyzed by exact Wilcoxon test. Significance tests were two-tailed, with α=0.05. All analyses were performed using SAS v.9.4 (SAS Institute Inc.).

DAS, Dy et al. Accuracy Scale: 1 = <25% accurate information; 2 = 25–50% accurate information; 3 = 51–75% accurate information; 4 = 76–100% accurate information

GQS, Global Quality Score: 1 = Poor quality, poor flow, most information missing, not at all useful for patients; 2 = Generally poor quality and poor flow, some information listed but many important topics missing, of very limited use to patients; 3 = Moderate quality, suboptimal flow, some important information is adequately discussed but others poorly discussed, somewhat useful for patients; 4 = Good quality and generally good flow, most of the relevant information is listed, but some topics not covered, useful for patients; 5 = Excellent quality and excellent flow, very useful for patients