Table 2.
Demographic and Headache Characteristics of the Sample by Headache Frequency Group
| Low Headache Frequency N = 1135 |
Mid Headache Frequency N = 1027 |
High Headache Frequency N = 1287 |
pa | |
|---|---|---|---|---|
| Attacks/Month | 0 to 3 | 4 to 9 | 10 to 30 | |
| Intensity (0 to 10) | 4.6 (2.6) | 5.7 (2.3) | 6.7 (2.2) | <0.0001 |
| Pulsating | 58% | 58% | 48% | <0.0001 |
| Unilateral | 45% | 46% | 41% | 0.019 |
| Aggravated | 44% | 49% | 49% | 0.019 |
| Nausea | 28% | 37% | 50% | <0.0001 |
| Vomit | 13% | 15% | 21% | <0.0001 |
| Phonophobia | 54% | 61% | 62% | <0.0001 |
| Photophobia | 48% | 60% | 59% | <0.0001 |
| Aura | 14% | 20% | 20% | <0.0001 |
| Ageb | 23.9 (10.7) | 25.5 (11.8) | 33.2 (15.5) | <0.0001 |
| Sex-Female | 63% | 75% | 79% | <0.0001 |
Data presented as column percentage, mean (SD)
a
Group main effect from one-way ANOVA (Intensity, Age) or Chi-squared
b
Missing for n = 125 (3.6% of individuals)