Table 2: Results of itch intensity questionnaire.

General assessmentExtent Intensity Frequency Sleep disturbances
BPDHBPDHBPDHBPDHBPDH

Mean11.412.42.32.32.93.43.73.72.63.1
SD4.14.30.40.41.21.31.41.72.12.5
SEM0.770.880.080.080.230.270.260.350.400.51
MAX191933555566
Median111422344524
MIN5422111100
28242824282428242824

SD: standard deviation; SEM: standard error of the mean; : number of patients.