Table 2 Characteristics of video uploaders about oral carcinoma on YouTube and bilibili.

Number of uploaders

111

134

-

Number of videos per person, Mean, Median[P25, P75]

1.35, 1[1, 1]

1.12, 1[1, 1]

0.012^a

Subscribers, Mean, Median[P25, P75]

612,023, 118,000[16600, 543000]

149,603, 1489[136, 15250]

<0.001^a

Type of uploaders, n(%)

<0.001^b

 Doctor

12(10.8%)

39(29.1%)

<0.001^c

 Other medical worker/student

2(1.8%)

5(3.7%)

0.605^d

 Hospital/Non-profit organization

74(66.7%)

5(3.7%)

<0.001^c

 Official media

3(2.7%)

4(3.0%)

1.000^d

 Company with profit

19(17.1%)

7(5.1%)

0.003^c

Self-media

1(0.9%)

74(55.2%)

<0.001^c

#Professionals, n(%)

91(82.0%)

55(41.0%)

<0.001^c

*Group accounts, n(%)

96(86.5%)

16(11.9%)

<0.001^c

Certification, n(%)

65(58.6%)

53(39.6%)

0.003^c

Type of certified uploaders, n(%)

<0.001^b

 Doctor

3(4.7%)

30(56.6%)

<0.001^c

 Other medical worker/student

0(0%)

3(5.7%)

0.175^d

 Non-profit organization

45(69.2%)

2(3.7%)

<0.001^c

 Official media

1(1.5%)

3(5.7%)

0.472^d

 Company with profit

16(24.6%)

6(11.3%)

0.065^c

 Self-media

0(0%)

9(17.0%)

0.002^d