Table 2 The risk of benign paroxysmal positional vertigo (BPPV) for patients with migraine and matched cohort
Characteristics | Patients with migraine, n = 8266 | Matched cohort, n = 8266 | IRR (95 % CI) | P value | ||
|---|---|---|---|---|---|---|
BPPV No. | Per 10,000 person-year | BPPV No. | Per 10,000 person-year | |||
Total | 92 | 18.1 | 45 | 8.9 | 2.03 (1.41–2.97) | <0.001 |
Age | ||||||
<40 | 29 | 10.6 | 11 | 4.0 | 2.63 (1.28–5.84) | 0.004 |
≥40 | 63 | 26.8 | 34 | 14.6 | 1.84 (1.19–2.88) | 0.004 |
Sex | ||||||
Male | 20 | 14.1 | 12 | 8.5 | 1.66 (0.77–3.72) | 0.168 |
Female | 72 | 19.7 | 33 | 9.1 | 2.17 (1.42–3.39) | <0.001 |
Aura | ||||||
With aura | 10 | 24.2 | 4 | 9.8 | 2.48 (0.71–10.81) | 0.123 |
Without aura | 82 | 17.5 | 41 | 8.8 | 1.99 (1.35–2.97) | <0.001 |