Table 2.

Major curve progression ≥6° at brace weaning and surgery after weaning in 495 Boston-braced patients

Characteristic	Compliers (n = 389)	Non-compliers (n = 106)	OR (95 % CI)	P
Curve progression ≥6°a	76	59	5.2 (3.3–8.2)	<0.001
Surgery	11	22	9.0 (4.2–19.3)	<0.001

Numbers of patients and odds ratio (OR) with 95 % confidence interval (CI) are given

^aAll patients who had surgery are counted with curve progression ≥6° at weaning