Table 3. Postoperative (at 1, 6, 36 months after surgery) GBI scores - total and subscales.

Variable	Postop1 mean (SD)	Postop6 mean (SD)	p a	Postop6 mean (SD)	Postop36 mean (SD)	p a
GBI total	22.36 ± 12.26	25.76 ± 13.13	0.000 b	25.76 ± 13.13	19.86 ± 9.27	0.001 b
GBI general	26.04 ± 15.61	30.31 ± 15.87	0.000 b	30.31 ± 15.87	22.49 ± 12.86	0.000 b
GBI social	4.16 ± 11.78	6.25 ± 12.33	0.009	6.25 ± 12.33	5.2 ± 11.43	0.219
GBI physical	26.24 ± 22.29	31.24 ± 22.70	0.02	31.24 ± 22.70	20.83 ± 22.24	0.003

Abbreviations: GBI, Glasgow Benefit Inventory; Preop, preoperatively; Postop1, 1 month postoperatively; Postop6, 6 months postoperatively; Postop36, 36 months postoperatively; SD, standard deviation.

Notes: ^a Wilcoxon signed-rank test for paired samples. ^b Paired samples t -test.