Table 4: Self-reported and informant-reported UPPS scores preoperatively and at three-month follow-up.

UPPS subscalesPreoperativeThree-month follow-upMean diff. ± SD 
preop. – three months
Cohen’s value

Urgency
Self 
= 20
21.3 ± 7.521.4 ± 7.10.1 ± 4.90.0200.929
Informant 
= 17
20.1 ± 5.621.2 ± 6.0−1.3 ± 5.60.2340.365

Lack of Premeditation
Self 
= 20
22.2 ± 5.423.5 ± 5.1−1.3 ± 4.70.2780.229
Informant 
= 17
20.8 ± 6.124.5 ± 6.0−3.1 ± 5.10.6140.027*

Lack of Perseverance
Self 
= 20
19.2 ± 3.920.0 ± 4.8−0.8 ± 4.50.1810.434
Informant 
= 17
18.2 ± 6.019.3 ± 5.4−1.1 ± 6.00.1880.466

Sensation Seeking
Self 
= 20
21.7 ± 6.623.0 ± 8.6−1.3 ± 5.30.2750.266
Informant 
= 17
20.6 ± 5.720.9 ± 5.9−0.3 ± 5.10.0610.810

The * is referring to significant -values.