Legat 2017.

Methods	Study design: randomised controlled trial Objective: "we investigated the effects of BB‐UVB versus NB‐UVB in reducing pruritus in patients with CP. 49 patients consented and were randomly assigned to BB‐UVB or NB‐UVB"
Participants	38 patients with chronic pruritus
Interventions	Phototherapy broad band ‐ UVB vs narrow band ‐ UVB
Outcomes	Quote: "reducing the intensity of pruritus in patients with chronic pruritus using a visual analogue scale (VAS) ranging from 0 (= no itch) to 10 (= worst imaginable itch)"
Notes	PP74 Abstract from the 9th World Congress on Itch, 15–17 October 2017, Wroclaw, Poland We sent 3 emails to the study authors (franz.legat@medunigraz.at 11/2018, 01/2019, and 03/2019) with no response. The study does not specify if researchers included patients with CPUO

BB‐UVB: broad band ultraviolet B.

CP: chronic pruritus.

CPUO: chronic pruritus of unknown origin.

N/A: not applicable.

NB‐UVB: narrow band ultraviolet B.

UVB: ultraviolet B.

VAS: visual analogue scale.