Table 1.

Basic characteristic of included videos, grouped by type of treatment (radiotherapy or surgery). (Numbers are reported as median [range] unless indicated otherwise).

.	Range of Upload (Month/Year)	Median Length of Video (min:s)	Median No. of Views	Median Thumbs Up	Median Thumbs Down	Median No. of Comments	Median Audio Quality [1 (Bad)–5 (Excellent)]	Median Video Quality [1 (Bad)–5 (Excellent)]
Radiotherapy	11/2008–09/2019	06:30 [1:37–31:00]	20′848 [8077–1′291′081]	355 [20–640]	292.5 [3–582]	12 [3–21]	3.5 [3–4]	4 [3–5]
Surgery	02/2008–09/2019	04:04 [00:35–10:54]	33′123 [13′942–4′986′282]	119.5 [6–8400]	10.5 [0–1700]	13 [0–326]	5 [2–5]	5 [2–5]