Table 3: Comparison of TCI subscale scores preoperatively and at three-month follow-up using the paired samples -test.

Preoperatively 
Mean ± SD 
= 31
Three-month follow-up 
Mean ± SD 
= 31
Differences 
preop. – three months 
Mean (±SD) 
(95% CI)
Cohen’s value

Novelty Seeking9.3 ± 2.68.8 ± 3.10.4 ± 2.6 
(−0.05–1.4)
0.1620.382

Harm Avoidance8.1 ± 4.07.7 ± 4.00.04 ± 2.7 
(−0.6–1.4)
0.1420.438

Reward Dependence9.7 ± 2.69.1 ± 3.20.6 ± 2.3 
(−0.2–1.5)
0.2930.125

Persistence2.3 ± 1.31.7 ± 1.40.6 ± 1.2 
(0.2–1.1)
0.5220.006*

Self-Directedness20.8 ± 3.020.0 ± 3.70.8 ± 4.0 
(−0.6–2.3)
0.2070.258

Cooperativeness21.5 ± 2.820.6 ± 3.20.9 ± 3.0 
(−0.2–2.0)
0.2990.108

Self-Transcendence3.9 ± 2.93.1 ± 2.30.9 ± 2.0 
(0.1–1.6)
0.4500.024*

The * is referring to significant -values.