Table 3 Convergent validity of the UAS7 score. Pearson correlation coefficients with EQ-5D and CU-Q₂oL summary scores and dimensions at baseline (statistically significant correlations at p < 0.05 in bold)

 Mobility

-0.030

0.037

0.005

 Self-care

0.066

0.025

0.055

 Usual activities

0.147

0.287

0.243

 Pain/discomfort

0.143

0.251

0.218

 Anxiety/depression

0.076

0.238

0.162

 EQ VAS

-0.111

–0.299

–0.222

 EQ Índex

-0.148

–0.301

–0.247

 Itch

0.606

0.574

0.628

 Swelling

0.289

0.360

0.334

 Impact on life activities

0.366

0.474

0.450

 Sleep Problems

0.286

0.422

0.383

 Limits

0.260

0.395

0.343

 Looks

0.168

0.341

0.265

 Overall score

0.379

0.510

0.471