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. 2021 Jul 14;11(5):1551–1569. doi: 10.1007/s13555-021-00570-4

Table 3.

Spearman correlations between changes from baseline to week 16 in P-SIM item scores and other clinician- and patient-reported outcomes

P-SIM item Spearman correlation coefficient for changes from baseline to week 16
PASI total score
(n = 698)
DLQI total score
(n = 698)
DLQI item 1 score
(n = 696)
IGA score
(n = 698)
PGAP scorea
(n = 314)
Item 1—itching 0.42 0.61* 0.74* 0.48 0.72*
Item 2—redness 0.45 0.61* 0.68* 0.50 0.74*
Item 3—skin pain 0.44 0.60* 0.69* 0.46 0.68*
Item 4—burning 0.44 0.61* 0.70* 0.48 0.69*
Item 5—scaling 0.49 0.61* 0.66* 0.53* 0.73*
Item 6—cracking 0.43 0.60* 0.65* 0.47 0.68*
Item 7—dryness 0.44 0.60* 0.68* 0.49 0.75*
Item 8—irritation 0.44 0.63* 0.70* 0.49 0.73*
Item 9—sensitivity 0.44 0.61* 0.68* 0.48 0.70*
Item 10—lesions 0.45 0.62* 0.65* 0.49 0.72*
Item 11—thickening 0.44 0.61* 0.64* 0.49 0.71*
Item 12—fatigue 0.38 0.61* 0.54* 0.44 0.60*
Item 13—embarrassment 0.38 0.69* 0.56* 0.46 0.61*
Item 14—choice of clothing 0.38 0.68* 0.50 0.46 0.59*

Data were pooled from BE VIVID and BE READY

DLQI Dermatology Life Quality Index, IGA Investigator’s Global Assessment, PASI Psoriasis Area and Severity Index, PGAP Patient Global Assessment of Psoriasis, P-SIM Psoriasis Symptoms and Impacts Measure

*Correlation coefficients that are strong (> 0.50)

aChanges from baseline to week 12 were used for PGAP as a result of substantial amounts of missing data at week 16