Table 1: Baseline characteristics.

CS ()Other surgeries ()

Age (years)31 ± 533 ± 80.09
Body mass (kg)89 ± 1472 ± 16<0.0001
ASA 121201.0
ASA 238420.51
ASA 3510.26
Spinal anaesthesia480<0.0001
General anaesthesia964<0.0001
Epidural anaesthesia740.3
Duration of surgical procedure (min)37 ± 1163 ± 31<0.0001
Surgery-related “a priori”-assumed pain44.8 ± 1.1<0.0001

Data are presented as mean (SD) or as the number of patients; CS: caesarean section. Anticipated surgery-related “a priori”-assumed pain was taken using VRS-10, where 0 = no pain at all and 10 = worst pain which could be imagined according to [8].