Table 2.
Mean and standard deviation (SD) of the ratings of each item in Round 1, together with the proportion of the respondents who thought that this item was essential in the diagnosis of VS.
| Item | Mean | SD | Proportion of respondents who considered item essential |
|---|---|---|---|
| Symptom of words moving when reading | 9.1 | 1.0 | 21% |
| Sustained voluntary use of overlay | 8.9 | 1.2 | 26% |
| Overlay improves WRRT | 8.8 | 1.1 | 26% |
| Words blurring when reading | 8.0 | 1.2 | 5% |
| PGT result | 7.6 | 2.6 | 21% |
| Symptoms of headaches when reading | 7.5 | 1.9 | 5% |
| Symptoms worsen with small text | 7.0 | 2.5 | 5% |
| Personal history of dyslexia | 6.6 | 1.5 | 0 |
| Personal history of migraine | 6.5 | 1.4 | 0 |
| FH migraine | 4.0 | 2.0 | 0 |
| FH epilepsy | 2.4 | 1.6 | 0 |
| Inconsistent errors on Ishihara test | 1.5 | 1.9 | 0 |