Supplemental Material: Sensitive Scalp Syndrome in Scalp Psoriasis: Prevalence, Correlates, and Quality-of-Life Impact (JAAD International)

The file contains four supplemental tables (Tables SI–SIV) providing detailed analyses supporting the main text:
1. Table SI: Prevalence and symptom distribution of Sensitive Scalp Syndrome (SScS) and correlations of each sensory symptom (itching, prickling, tightness, pain, burning) with the total 3S score.
2. Table SII: Spearman correlation between the 3S score and clinical severity indices (PASI, PSSI, BSA) and quality-of-life measures (DLQI, Scalpdex score).
3. Table SIII: Itemized Scalpdex scores describing emotional, functional, and symptomatic impacts in patients with scalp psoriasis .
4. Table SIV: Multivariable logistic regression showing associations between triggering factors (e.g., heat, sweat, alcohol, shampoo) and severity of specific sensory symptoms of SScS.

All data were collected in a multicenter cross-sectional study conducted in Ho Chi Minh City (Vietnam) from August 2024 to June 2025. These supplementary materials provide expanded statistical details and quality-of-life analyses that complement the results presented in the main manuscript.