Table 2 Prevalence of headache yesterday according to diagnosis (when recognized as most bothersome headache), and comparison with predicted 1-day prevalence based on reported frequency and 1-year prevalence
From: Headache yesterday in Karnataka state, India: prevalence, impact and cost
Headache type | Headache yesterday: with diagnosis (N = 95) or all cases (N = 138) | Predicted 1-day prevalence | |||
|---|---|---|---|---|---|
n (%) | Observed 1-day prevalence (%) (N = 2329) | 1-year prevalence a (%) | Mean headache days/year | Calculated 1-day prevalence (%) | |
Migraine | 44/95 (46.3 %) | 1.9 | 25.2 | 28 b | 1.9 |
Tension-type headache | 23/95 (24.2 %) | 1.0 | 35.1 | 17 b | 1.6 |
Probable medication-overuse headache | 13/95 (13.7 %) | 0.6 | 1.2 | 226 b | 0.7 |
Other headache on ≥15 days/month | 15/95 (15.8 %) | 0.6 | 1.8 | 259 b | 1.3 |
Unknown headache yesterday | 43/138 | 1.8 | - | - | - |
All headache yesterday | 138 | 5.9 | 63.9 | 32.0 a | 5.6 a |