Table 1.
Demographic variables and pearson-product moment correlation matrix for each study variable
| Mean | 95% CI | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. Headache frequency (days/month) | 18.1 | 17.5–18.7 | ||||||||
| 2. Headache intensity (0–10) | 5.9 | 5.5–6.3 | .145* | |||||||
| 3. Headache duration (hours/attack) | 7.3 | 6.6-8.0 | .249** | n.s | ||||||
| 4. Pittsburg Questionnaire (0–21) | 17.1 | 15.8–18.4 | .223** | .177** | .165* | |||||
| 5. HDI-E (0–52) | 18.7 | 17.0–20.4 | .341** | .212** | .350** | .328** | ||||
| 6. HDI-P (0–48) | 22.5 | 20.9–24.1 | .235** | .165* | .237** | .232** | .828** | |||
| 7. Bodily Pain (0–100) | 51.2 | 47.9–54.6 | -.245** | -.165* | n.s. | -.350** | -.409** | -.442** | ||
| 8. HADS-D (0–21) | 8.0 | 7.5–8.6 | .274** | .227** | .313** | .426** | .538** | .405** | -.389** | |
| 9. HADS-A (0–21) | 10.0 | 9.3-10.7 | n.s. | n.s | n.s | n.s | n.s | n.s | n.s | .208** |
95% CI: 95% confidence interval
HDI Headache Disability Inventory (E Emotional, P Physical), HADS Hospital Anxiety and Depression Scale (D Depression, A Anxiety)
*P < 0.05; **P < 0.01