Table 2.

Characteristics of video uploaders about laryngeal carcinoma on YouTube/ Bilibili/ TikTok.

Platform	YouTube	Bilibili	TikTok	P(Y-B)	P(B-T)	P(Y-T)
Number of uploaders	85	51	68	-	-	-
Followers, median [P25, P75]	10,000 [1880, 52,600]	29,000 [3,605, 75,750]	269,000 [68,750, 1,048,750]	0.079a	<0.001a	<0.001a
Number of videos per person, Mean±SD, Median[P25, P75]	1.15 ± 0.42, 1 [1, 1]	1.48 ± 0.93, 1 [1, 2]	1.46 ± 1.20, 1 [1, 1]	0.021a	0.328a	0.215a
Type of uploaders, n (%)
Doctor	14 (16.5%)	39 (76.5%)	62 (91.2%)	<0.001b	0.027 b	<0.001b
Other medical worker/student	19 (22.4%)	5 (9.8%)	0	0.063b	0.030 c	<0.001b
Non-profit organization	43 (50.6%)	0	0	<0.001b	-	<0.001b
Company with profit	4 (4.7%)	0	0	0.294c	-	0.193c
Official media	3 (3.5%)	3 (5.9%)	5 (7.4%)	0.829c	1.000c	0.490c
Self-media	2 (2.3%)	4 (7.8%)	1 (1.4%)	0.281c	0.210c	1.000c
Doctor of TCM, n (%)	0	21 (41.2%)	15 (22.1%)	<0.001b	0.025 b	<0.001b
Authentication, n (%)	33 (38.8%)	42 (82.4%)	67 (98.5%)	<0.001b	0.005 c	<0.001b
Verify the type of uploader, n (%)
Doctor	2 (6.1%)	34 (81.0%)	62 (92.5%)	<0.001b	0.069b	<0.001b
Other medical worker/student	3 (9.1%)	4 (9.5%)	0	1.000c	0.040 c	0.034d
Non-profit organization	24 (72.7%)	0	0	<0.001b	-	<0.001b
Company with profit	1 (3.0%)	0	0	0.440d	-	0.330d
Official media	3 (9.1%)	3 (7.1%)	5 (7.5%)	1.000c	1.000c	1.000c
Self-media	0	1 (2.4%)	0	1.000d	0.385d	-

P_(Y-B): YouTube versus Bilibili; P_(B-T): Bilibili versus TikTok; P_(Y-T): YouTube versus TikTok. Bold text means the p-value < 0.05.

^aMann-Whitney U test.

^bChi-squared test.

^cContinuity correction.

^dFisher’s exact test.