Characteristics of migraine with aura (MA) and other reversible visual disturbances (no MA)
| Symptoms | MA (n = 362) | No MA (n = 112) | ||||||
|---|---|---|---|---|---|---|---|---|
| Visual aura(n = 358) | Sensory aura(n = 196) | Aphasic aura(n = 116) | Visual disturbances | |||||
| % | n/N | % | n/N | % | n/N | % | n/N | |
| *Recorded as numerical data. | ||||||||
| †Location of visual symptoms: unilateral (homonymous), in one side of the visual field; bilateral, in both sides of the visual field. | ||||||||
| Acute onset | 19 | 65/345 | 25 | 47/187 | – | – | 87 | 89/102 |
| Gradually developing* | ||||||||
| 5–30 minutes | 68 | 236/345 | 58 | 109/187 | – | – | 6 | 6/102 |
| 31–60 minutes | 4 | 14/345 | 4 | 8/187 | – | – | 1 | 1/102 |
| >60 minutes | – | – | – | – | – | – | – | – |
| Patient cannot say | 9 | 30/345 | 12 | 23/187 | – | – | 6 | 6/102 |
| Duration* | ||||||||
| <1 minutes | – | – | – | – | – | – | 15 | 17/111 |
| 1–4 minutes | <1 | 1/356 | – | – | – | – | 24 | 27/111 |
| 5–30 minutes | 72 | 255/356 | 64 | 122/189 | 55 | 57/104 | 9 | 10/111 |
| 31–60 minutes | 18 | 64/356 | 22 | 41/189 | 23 | 24/104 | 6 | 6/111 |
| >60 minutes | 10 | 36/356 | 14 | 26/189 | 22 | 23/104 | 46 | 51/111 |
| Location† | ||||||||
| Unilateral | 64 | 225/351 | 86 | 165/192 | – | – | 27 | 29/107 |
| Bilateral | 36 | 126/351 | 14 | 27/192 | – | – | 73 | 78/107 |