Table 2.

Comparison of characteristics between patients with positive and negative future health expectations preoperatively

	LSS (n=3969)		LDH (n=5960)
	Negative future health expectations	Positive future health expectations	Negative future health expectations	Positive future health expectations
n (%)	1501 (37.8)	2468 (62.2)	1333 (22.4)	4627 (77.6)
Age, mean (SD)	67.8 (10)	64.9 (10.1)	46.8 (13.8)	44.3 (12.1)
BMI, mean (SD)	27.7 (4.0)	27.5 (4.0)	26.7 (4.4)	26.1 (4.0)
Women, n (%)	709 (47.2)	1110 (45)	596 (44.7)	2039 (44.1)

BMI, body mass index; LDH, lumbar disk herniation; LSS, lumbar spinal stenosis.