Table 4. Subgroup analysis </≥3 NRS. Number of respondents, mean, standard deviation, and results of the test for statistical difference of the subgroups with respect to the single survey components.
n M ± SD p-value (95%-CI)
RPS
< 3 NRS
≥ 3 NRS		 531
205		 3.83 ± 2.88
5.41 ± 3.15		 < 0.001
(-2.06; -1.11)
KSK12
< 3 NRS
≥ 3 NRS		 531
205		 49.98 ± 5.30c46.01 ± 8.51 < 0.001
(2.72; 5.23)
PSK12
< 3 NRS
≥ 3 NRS		 531
205		 48.74 ± 8.50
44.61 ± 11.26		 < 0.001
(2.42; 5.84)
NRS pain intensity
< 3 NRS
≥ 3 NRS		 531
205		 0.84 ± 0.79
4.41 ± 1.59		 < 0.001
(-3.81; -3.35)
QLIP
< 3 NRS
≥ 3 NRS		 520
201		 33.72 ± 5.23
27.48 ± 7.41		 < 0.001
(5.11; 7.36)
DASS-D
< 3 NRS
≥ 3 NRS		 493
194		 2.62 ± 2.96
4.66 ± 4.40		 < 0.001
(-2.72; -1.37)
DASS-A
< 3 NRS
≥ 3 NRS		 493
194		 1.62 ± 2.22
2.51 ± 2.85		 < 0.001
(-1.34; -0.44)
DASS-S
< 3 NRS
≥ 3 NRS		 493
194		 3.20 ± 3.23
5.29 ± 4.26		 < 0.001
(-2.76; -1.42)
SCS-D SF
< 3 NRS
≥ 3 NRS		 472
192		 39.06 ± 7.16
36.78 ± 7.58		 < 0.001
(1.05; 3.50)
The Bonferroni test may be applied to compensate for multiple measurements (in total n = 9), with . RPS Regional Pain Scale; PCS-12 Physical Component Summary of the SF-12 Short Form 12 Health Survey; MCS-12 Mental Component Summary of the SF-12; NRS Numerical Rating Scale; QLIP Quality of Live Impairment by Pain; DASS-D/-A/-S Depression, Anxiety and Stress Scales-Depression/-Anxiety/-Stress; SCS-D SF Self-Compassion Scale Short Form.