
Figure 1
The flowchart of the selection of videos.
Table 1
DISCERN items and scoring.
| QUESTION NUMBER | QUESTIONS | SCORING | ||||
|---|---|---|---|---|---|---|
| 1 | Are the aims clear? | 1 | 2 | 3 | 4 | 5 |
| 2 | Does it achieve its aims? | 1 | 2 | 3 | 4 | 5 |
| 3 | Is it relevant? | 1 | 2 | 3 | 4 | 5 |
| 4 | Is it clear what sources of information were used to compile the publication? | 1 | 2 | 3 | 4 | 5 |
| 5 | Is it clear when the information used or reported in the publication was produced? | 1 | 2 | 3 | 4 | 5 |
| 6 | Is it balanced and unbiased? | 1 | 2 | 3 | 4 | 5 |
| 7 | Does it provide details of additional sources of support and information? | 1 | 2 | 3 | 4 | 5 |
| 8 | Does it refer to areas of uncertainty? | 1 | 2 | 3 | 4 | 5 |
| 9 | Does it describe how each treatment works? | 1 | 2 | 3 | 4 | 5 |
| 10 | Does it describe the benefits of each treatment? | 1 | 2 | 3 | 4 | 5 |
| 11 | Does it describe the risks of each treatment? | 1 | 2 | 3 | 4 | 5 |
| 12 | Does it describe what would happen if no treatment is used? | 1 | 2 | 3 | 4 | 5 |
| 13 | Does it describe how the treatment choices affect overall quality of life? | 1 | 2 | 3 | 4 | 5 |
| 14 | Is it clear that there may be more than one possible treatment choice? | 1 | 2 | 3 | 4 | 5 |
| 15 | Does it provide support for shared decision-making? | 1 | 2 | 3 | 4 | 5 |
| 16 | Based on the answers to all of the above questions, rate the overall quality of the publication as a source of information about treatment choices. | 1 | 2 | 3 | 4 | 5 |

Figure 2
Source of uploaded videos.

Figure 3
Qualitative characteristics of video contents.

Figure 4
Mean DISCERN scores of the raters.
Table 2
Statistically significant relationships and selected qualitative video content.
| GROUP COUNT | MEAN DISCERN | STD | P | MEAN GQS | STD | P | ||
|---|---|---|---|---|---|---|---|---|
| Clear information | Yes No | 39 44 | 49.30 35.43 | 2.21 1.56 | <0.001 | 3.82 2.25 | 0.17 0.14 | <0.001 |
| Symptoms | Yes No | 63 20 | 43.63 36.65 | 1.80 2.50 | 0.045 | 3.23 2.20 | 0.15 0.26 | 0.001 |
| Diagnosis | Yes No | 62 21 | 44.82 33.47 | 1.80 1.91 | 0.001 | 3.33 1.95 | 0.15 0.17 | <0.001 |
| Treatment | Yes No | 52 31 | 48.01 31.77 | 1.83 1.38 | <0.001 | 3.40 2.29 | 0.16 0.20 | <0.001 |
| Treatment response | Yes No | 48 34 | 48.31 33.41 | 1.94 1.55 | <0.001 | 3.39 2.44 | 0.17 0.21 | 0.001 |
| Etiology | Yes No | 16 67 | 56 38.59 | 3.43 1.43 | <0.001 | 4.43 2.64 | 0.22 0.13 | <0.001 |
| Epidemiology | Yes No | 11 72 | 57.72 39.54 | 4.25 1.44 | <0.001 | 4.27 2.79 | 0.33 0.14 | 0.001 |
| Prognosis | Yes No | 9 74 | 52.11 40.71 | 5.59 1.52 | 0.050 | 3.88 2.87 | 0.42 0.14 | 0.033 |
| Diagram | Yes No | 9 74 | 60.44 39.70 | 4.27 1.43 | <0.001 | 4.44 2.81 | 0.24 0.14 | <0.001 |
| Radiological image | Yes No | 14 69 | 56.21 39.05 | 3.73 1.45 | <0.001 | 4.35 2.71 | 0.22 0.14 | <0.001 |
| Animation | Yes No | 5 78 | 50.80 41.38 | 7.90 1.53 | 0.213 | 4.00 2.92 | 0.54 0.14 | 0.076 |
| Doctor presenter | Yes No | 60 23 | 46.36 30.43 | 1.69 1.73 | <0.001 | 3.43 1.82 | 0.14 0.18 | <0.001 |
[i] Mann-Whitney U test.
Table 3
Correlation analysis.
| VPI | LIKE RATIO | TOTAL VIEWS | VIEW RATE | TOTAL COMMENTS | MEAN GQS | |
|---|---|---|---|---|---|---|
| Mean DISCERN | –0.235* | –0.239* | –0.217* | –0.217* | –0.260* | 0.907** |
| Mean GQS | –0.139 | –0.239* | –0.121 | –0.123 | –0.194 | 1.000 |
[i] Spearman’s rho.
* Statistically significant at p < 0.05.
** Statistically significant at p < 0.01.
Table 4
The Top eight Most Popular Essential Tremor Videos.
| TITLE | UPLOADER | DISCERN | GQS | VPI | YOU TUBE LINK | DATE |
|---|---|---|---|---|---|---|
| Essential Tremor: Pediatric Onset | International Essential Tremor Foundation | 68 | 5 | 4.91 | https://www.youtube.com/watch?v=IU6Rhi6PUjA | 10 May 2021 |
| Diagnosis & Treatment Options for Essential Tremor | International Essential Tremor Foundation | 72 | 5 | 49.28 | https://www.youtube.com/watch?v=CJ8oZfme9wo | 4 Aug 2020 |
| TREMORS, Types, Causes, Treatment | Medi-Lectures | 63 | 5 | 14.09 | https://www.youtube.com/watch?v=o4QB6PNPTZo | 29 Aug 2021 |
| Latest Treatments For Essential Tremor and Parkinson’s Disease Webinar | Providence | 70 | 5 | 3.46 | https://www.youtube.com/watch?v=AcKdsxwxrEs | 24 Mar 2021 |
| Deep Brain Stimulation for Essential Tremor and Vocal Tremor | Stanford Health Care | 63 | 5 | 3.78 | https://www.youtube.com/watch?v=AV-2dNJczmI | 1 Jun 2015 |
| Treating Essential Tremor Today: From Propranolol to Piezoelectrics | Seattle Science Foundation | 72 | 5 | 8.46 | https://www.youtube.com/watch?v=zfOLHcWkc-I | 1 Mar 2018 |
| Essential Tremor and Thalamotomy | NEJM Group | 68 | 5 | 2.96 | https://www.youtube.com/watch?v=TOnoDGfq_kQ&t=1s | 25 Aug 2016 |
