Table 2.

Basic questionnaire results

Subscale	Time	Mean	Standard Deviation	Mauchly’s Sphericity P	Time Variation P
SF-36 Physical	2 weeks preoperatively	64.6	24.1	0.011	0.008*
	3 months postoperatively	64.3	24.9
	6 months postoperatively	60.0	25.9
	12 months postoperatively	71.0	19.4
SF-36 Mental	2 weeks preoperatively	64.2	24.4	0.011	0.03*
	3 months postoperatively	61.1	26.2
	6 months postoperatively	64.1	22.7
	12 months postoperatively	72.2	18.3
STAI-Y1	2 weeks preoperatively	41.2	11.1	0.023	0.001*
	3 months postoperatively	42.1	14.7
	6 months postoperatively	40.7	13.6
	12 months postoperatively	33.0	9.3
STAI-Y2	2 weeks preoperatively	44.0	9.3	0.362	0.945
	3 months postoperatively	44.0	11.3
	6 months postoperatively	44.6	12.1
	12 months postoperatively	43.8	11.8

^*Greenhouse-Geisser correction applied STAI score: 29–39: low anxiety 40–59: moderate anxiety 60–80: high anxiety SF-36 score: 0: minimum value 100: maximum value.