Table 2.

Measured parameters of the participants.

Variables
ZBI	18.0 ± 15.0
NRS	6.2 ± 2.1
PCS	38.1 ± 9.0
HADS anxiety	8.9 ± 4.2
HADS depression	9.7 ± 4.6
AIS	9.5 ± 5.2
PDAS	29.5 ± 13.4
PSEQ	20.1 ± 13.6

Data are expressed as mean ± standard deviations.

AIS = Athens insomnia scale, HADS = hospital anxiety and depression scale, NRS = numeric rating scale, PCS = pain catastrophizing scale, PDAS = pain disability assessment scale, PSEQ = pain self-efficacy questionnaire, ZBI = Zarit burden interview.