Table 6 Convergent validity: correlations between HIT-6 and MSQ scores
From: Validation of the Headache Impact Test (HIT-6) in patients with chronic migraine
| Time point | Item/Scale | Study 1 | Study 2 | ||
|---|---|---|---|---|---|
| Correlationa | N | Correlationa | N | ||
| Baseline | Total | −0.77 | (671) | −0.78 | (703) |
| Emotional function | −0.62 | (671) | −0.59 | (703) | |
| Role function - preventive | −0.67 | (672) | −0.66 | (704) | |
| Role function - restrictive | −0.75 | (672) | −0.78 | (704) | |
| Week 24 | Total | −0.85 | (576) | −0.83 | (637) |
| Emotional function | −0.78 | (576) | −0.74 | (637) | |
| Role function - preventive | −0.74 | (579) | −0.74 | (637) | |
| Role function - restrictive | −0.86 | (580) | −0.84 | (637) | |