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Table 1 The GELP scoring system for clinical assessment of genital erosive lichen planus (GELP) in women

From: Apremilast for genital erosive lichen planus in women (the AP-GELP Study): study protocol for a randomised placebo-controlled clinical trial

Area of involvement None 0
< 3 cm2 1
3–6 cm2 2
> 6 cm2 3
Intensity of erythema None 0
Mild 1
Moderate 2
Strong 3
Number of erosions None 0
1 1
2–3 2
> 3 3
Striae None 0
Minimal 1
Moderate 2
Extensive 3
Pressure-induced pain (visual analogue scale 0–100 mm) None (0–9 mm) 0
10–39 mm 1
40–69 mm 2
70–100 mm 3
  1. Vulval and vaginal involvement is assessed separately, resulting in a maximum GELP score of 30