From: Validation of a new tool to assess health-related quality of life in psoriasis: the PSO-LIFE questionnaire
Mean
SD
Missing items*
Observed range
Floor (%)
Ceiling (%)
Cronbach’s alpha
ICC
PSO-LIFE overall score
64.9
22.4
4.6%
10-100
0%
3.2%
0.95
0.98