Fig. 2
From: BMI matters: understanding the link between weight and severe psoriasis

Restricted cubic strip chart (RCS) curves of the relationship between BMI and psoriatic disease. The upper row of graphs shows the logistic regression method, showing the relationship between BMI and PASI ≥ 10 (A), BSA ≥ 10% (B), and DLQI ≥ 10 (C), respectively. The coordinates are BMI and the vertical coordinate is the OR value with a reference value of 1. The next row is a linear regression approach showing the relationship between BMI and PASI (D), BSA (E), and DLQI (F), respectively. The horizontal coordinate is BMI and the vertical coordinate is the coefficient beta (95% CI) with a reference value of 0. PASI psoriasis area and severity index, BSA body surface area, DLQI dermatologic quality of life index, BMI body mass index.