Table 1.
Demographic and clinical characteristics of patients by cluster.
| Characteristics | Clusters | χ 2 | value of p | |
|---|---|---|---|---|
| One N = 260 | Two N = 215 | |||
| Female (%) | 212 (44.6%) | 158 (33.3%) | 4.429 | 0.035 |
| Age, median (IQR) | 32 (25, 36) | 53 (46.5, 56) | < 0.001* | |
| Onset age, median (IQR) | 22 (16, 28) | 35 (27.5, 43) | < 0.001* | |
| Course, median (IQR) | 8 (4, 11) | 18 (10, 29.5) | < 0.001* | |
| Severity, median (IQR) | 7 (5, 7) | 7 (5, 8) | 0.011 | |
| Frequency of headache, median (IQR) | 5 (3, 10) | 20 (6, 30) | < 0.001* | |
| Chronic Migraine (%) | 35 | 115 | 56.52 | < 0.001* |
| Migraine with aura (%) | 16 | 4 | 0.15 | 0.699 |
| Medication Overuse (%) | 6 (1.3%) | 55 (11.6%) | 56.952 | < 0.001* |
| Family history of headache (%) | 146 (30.7%) | 142 (29.9%) | 4.825 | 0.028 |
| Family history of dizziness (%) | 62 (13.1%) | 54 (11.4%) | 0.103 | 0.748 |
| Symptoms | ||||
| Nausea (%) | 208 (43.8%) | 115 (24.2%) | 38.013 | < 0.001* |
| Vomit (%) | 124 (26.1%) | 44 (9.3%) | 38.165 | < 0.001* |
| Photophobia (%) | 139 (29.3%) | 96 (20.2%) | 3.6544 | 0.056 |
| Phonophobia (%) | 140 (29.5%) | 65 (13.7%) | 26.749 | < 0.001* |
| Osmophobia (%) | 24 (5.1%) | 19 (4%) | 0.022 | 0.882 |
| Dizziness (%) | 67 (14.1%) | 51 (10.7%) | 0.264 | 0.607 |
| Vertigo (%) | 9 (1.9%) | 4 (0.8%) | 1.133 | 0.287 |
| Tinnitus (%) | 11 (2.3%) | 16 (3.4%) | 2.263 | 0.132 |
| Hearing loss (%) | 5 (1.1%) | 7 (1.5%) | 0.848 | 0.357 |
| Aural fullness (%) | 5 (1.1%) | 7 (1.5%) | 0.848 | 0.357 |
| Vision symptoms (%) | 17 (3.6%) | 9 (1.9%) | 1.259 | 0.262 |
*
Indicating significant difference under the adjusted value of p 0.0022.