Figure 1.
Figure 2.
Figure 3.
Statistics of video characteristics
| Minimum | Maximum | Median | Sum | Mean | Standard deviation | 95% confidence interval | |
|---|---|---|---|---|---|---|---|
| Quantitative characteristics | |||||||
| Followers | 8 | 1 3100000 | 96700 | 150019732 | 1 103086.27 | 2829524.37 | 1087843.43 - 1 1 18329.10 |
| Views | 1039 | 61000000 | 1150000 | 455403698 | 3348556.60 | 6881681.44 | 331 1484.52 - 3385628.69 |
| Likes | 33 | 5900000 | 99200 | 50358071 | 370279.93 | 782357.1 1 | 366065.32 - 374494.55 |
| Comments | 0 | 25600 | 560.5 | 246243 | 1810.61 | 3448.63 | 1792.03 - 1829.19 |
| Video lengths | 5 | 104 | 23 | 3802 | 27.96 | 18.92 | 27.85 - 28.06 |
| Days since uploads | 1 | 43138 | 158.5 | 73204 | 538.26 | 3715.19 | 518.40 - 558.13 |
| Qualitative characteristics | |||||||
| Content score | 0 | 4 | 1 | 178 | 1.31 | 0.89 | 1.16 - 1.46 |
| DISCERN score | 0 | 3 | 2 | 297 | 2.18 | 0.89 | 2.03 - 2.33 |
| GQS score | 1 | 5 | 2 | 321 | 2.36 | 1.27 | 2.14 - 2.58 |
Different categories of videos uploaded by professionals and laypersons_ Data represents mean ± standard deviation (95% confidence interval)
| Professionals | Laypersons | |||||
|---|---|---|---|---|---|---|
| Humour | Experience | Educational | Humour | Experience | Educational | |
| Followers | 1241720.21 ± 1978166.34 | 5936238.33 ± 6632620.12 | 1465190.51 ± 3388780.70 | 1 128325.67± 2298073.93 | 473601.08 ± 1856479.58 | 61 9771.29 ± 980368.76 |
| (-1214497.93 - 3697937.93) | (-10540103.43 - 22412580.10) | (569598.50 - 2360782.52) | (-144305.26 - 2400956.59) | (-35909.47 - 9831 1 1 .63) | (-286918.60 - 1526461.17) | |
| Views | 1806660 ± 846706.43 | 2547266.67 ± 141 2672.08 | 3508537.80 ± 8357959.8) | 3859461.47 ± 5286519.17 | 31 83058.77 ± 6269260.90 | 3647300 ± 646738 1.79 |
| (755335.11 - 2857984.89) | (-962005.33 - 6056538.66) | (1299683.73 - 5717391.87) | (931 884.73 - 6787038.20) | (1462461.03 - 4903656.50) | (-2334030.55 - 9628630.55) | |
| Likes | 265501.2 ± 283698.88 | 316366.67 ± 197388.2) | 325057.29 ± 813046.26 | 373681.40± 139460.63 | 392841 .57 ± 729050.82 | 651881.86 ± 1521733.16 |
| (-86757.48 - 617759.88) | (-173972.82 - 806706.15) | (110184.22 - 539930.37) | (296450.68 - 450912.12) | (192753.68 - 592929.46) | (-755486.58 - 2059250.30) | |
| Comments | 1839.8 ± 1953.92 | 727 ± 391 .28 | 1877.84 ± 21 13.55 | 1 220.80 ± 1 1 34.4) | 1676.04 ± 3802.23 | 3970.29 ± 9540.66 |
| (-586.32 - 4265.92) | (-244.98 - 1698.98) | (1319.27 - 2436.41) | (592.59 - 1 849.01) | (632.52 - 2719.56) | (-4853.36 - 12793.93) | |
| Video lengths | 13.40 ± 6.03 | 28.67 ± 22.81 | 30.29 ± 15.02 | 21 .60 ± 14 | 26 ± 22.64 | 46 ± 19.04 |
| (5.92 - 20.88) | (-28 - 85.33) | (26.32 - 34.26) | (1 3.85 - 29.35) | (20.20 - 32.62) | (28.39 - 63.61) | |
| Days since | 176.25 ± 309.42 | 1 12.67± 131.79 | 213.85 ± 168.89 | 146.27± 301.89 | 1086.88 ± 601 1.63 | 242 ± 254.63 |
| uploads | (-207.94 - 560.44) | (-214.73 - 440.06) | (169.22 - 258.49) | (-20.91 - 313.45) | (-563.01 - 2736.77) | (6.51 - 477.49) |
Comparison of qualitative characteristics between layperson and professional uploaders
| Score types | Professional | Layperson | Difference | 95% CI of the Difference | P-value | |
|---|---|---|---|---|---|---|
| DISCERN | 2.714 ± 0.580 | 1.726 ± 0.854 | 0.988 ± -0.274 | 0.714 | 1.262 | P < 0.01 |
| Global Quality Scale (GQS) | 3.238 ± 1.088 | 1.603 ± 0.909 | 1.635 ± 0.179 | 1.456 | 1.814 | P < 0.01 |
| Content Score | 1.571 ± 0.837 | 1.082 ± 0.878 | 0.489 ± -0.041 | 0.448 | 0.530 | P < 0.01 |