Psychometric properties of the Spanish version of the once-daily Urticaria Activity Score (UAS) in patients with chronic spontaneous urticaria managed in clinical practice (the EVALUAS study)

Table 5 Responsiveness of the UAS7 score: mean score changes and effect sizes based on change in patient ratings of overall urticaria severity

Difference between visits in patient rating of overall urticaria severity	Hives	Itch	Global
– 3 category change (n = 4)	–7.6 (5.6)	–7.2 (6.3)	–15.0 (11.8)
– 3 category change (n = 4)	ES: 1.39	ES: 1.14	ES: 1.28
– 2 category change (n = 16)^a	–3.7 (5.3)	–4.3 (6.3)	–8.3 (11.2)
– 2 category change (n = 16)^a	ES: 0.69	ES: 0.68	ES: 0.74
– 1 category change (n = 47)	–1.1 (4.2)	–0.7 (5.2)	–1.9 (8.9)
– 1 category change (n = 47)	ES: 0.26	ES: 0.13	ES: 0.21
No change (n = 59)	–0.7 (3.9)	–0.9 (4.0)	–1.7 (7.0)
No change (n = 59)	ES: 0.18	ES: 0.23	ES: 0.25
+ 1 category change (n = 13)	2.3 (2.6)	-0.5 (4.6)	2.3 (4.6)
+ 1 category change (n = 13)	ES: 0.90	ES: 0.12	ES: 0.51
+ 2 category change (n = 2)	–1.5 (4.9)	1.5 (3.5)	–3.0 (8.5)
+ 2 category change (n = 2)	ES: 0.30	ES:0.42	ES: 0.35

^aFor example, a two category change would mean moving from ‘moderate’ to ‘very mild’, or ‘Very severe’ to ‘Moderate’

ISSN: 1477-7525