Table 2

VC (l) and VC (% predicted) in patients with adolescent idiopathic scoliosis before treatment, after surgery, and at present follow up in patients treated with surgery or brace treatment

		Surgically treated (n=141)				Brace treated (n=110)
		VC (l)	VC (% predicted)^2-1			VC (l)	VC (% predicted)^2-1
Before treatment	3.1 (0.7) (0.8–6.1)	67 (13) (23–104)		3.4 (0.6) (2.1–4.7)	77 (10) (52–106)
1.4 years after surgery	3.5 (0.7) (1.5–7.0)	73 (11) (44–108)
Present follow up	3.6 (0.7) (1.5–7.1)	84 (13) (47–123)		3.8 (0.7) (2.4–5.8)	89 (13) (56–127)
Change from before to after surgery	0.4^2-165 (0.4) (−0.8–1.6)	6^2-165 (8) (−28–34)
Change from after surgery to present follow up	0.1^2-165 (0.3) (−1.5–0.7)	11^2-165 (8) (−26–31)
Change from before treatment to present follow up	0.5^2-165 (0.5) (−1.6–1.8)	17^2-165 (11) (−29–48)		0.4^2-165 (0.4) (−0.7–1.5)	12^2-165 (10) (−14–36)

VC = vital capacity.
Values are means (SD), (range).
↵2-1 VC % predicted means value corrected for age and for loss of height due to scoliosis.
↵2-165 p<0.001.