Research Article
Elucidating the Visual Snow Spectrum: A Latent Class Analysis Study
Table 2
Group means for perceptual phenomena and comorbid conditions.
| | Participants without VS | Participants with VS | Participants with VSS | Participants with possible HPPD |
| | 1,072 | 676 | 83 | 15 | | Perceptual phenomena experienced (mean (SD)) | 0.97 (1.02) | 3.33 (1.52) | 4.55 (1.52) | 4.80 (1.61) | | Migraine category | | | | | | Probable migraine (with aura) | 99 (9.24%) | 351 (51.92%) | 42 (50.60%) | 8 (53.33%) | | Probable migraine (no aura) | 185 (17.26%) | 63 (9.32%) | 10 (12.05%) | 2 (13.33%) | | No migraine | 788 (23.51%) | 262 (24.44%) | 31 (37.35%) | 5 (33.33%) | | Tinnitus category | | | | | | Tinnitus | 207 (19.31%) | 157 (23.22%) | 33 (39.76%) | 5 (33.33%) | | No tinnitus | 865 (80.69%) | 519 (76.78%) | 50 (60.24%) | 10 (66.66%) | | Recreational drug use history | | | | | | Has disclosed drug use history | 339 (31.62%) | 284 (42.01%) | 33 (39.76%) | 15 (100%) | | Has not disclosed drug use history | 733 (68.38%) | 392 (57.99%) | 50 (60.24%) | 0 |
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Note. Unless otherwise specified, data are counts (percentages). The participants with visual snow here exclude the participants with VSS.
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