Table 2 Bracing treatment and outcomes for 108 patients with adolescent idiopathic scoliosis

Initial in-brace major curve^a (°)

22.8 (7.2)

22.6 (6.4)

22.6 (7.2)

0.924

Percent initial in-brace major curve correction^a

28.4 (20.1)

31.5 (15.2)

27.8 (20.1)

0.538

Time in brace (year)

2.4 (1.4)

2.8 (0.9)

2.4 (1.4)

0.193

 All patients^b

16.2 (5.3)

17.0 (6.1)

16.1 (5.2)

0.641

 Patients with Risser stage 0 or 1^c

17.0 (5.8)

18.9 (5.8)

16.8 (5.8)

0.296

Final major curve (°)

37.6 (13.3)

32.3 (10.4)

38.3 (13.5)

0.077

 >30°

70 (65)

6 (46)

64 (67)

0.133

 >50°

18 (17)

1 (8)

17 (18)

0.464

Change in major curve from baseline^d (°)

6.0 (12.1)

−0.4 (9.9)

6.9 (12.1)

0.028

Percent change in major curve from baseline

18.6 (38.9)

0.0 (30.5)

21.3 (38.8)

0.030

Progression to surgery

32 (30)

0 (0)

32 (34)

0.019

 Major curve ≥45°

32 (30)

2 (15)

30 (32)

0.337

 Progression to surgery or major curve ≥45°

38 (35)

2 (15)

36 (38)

0.133

 Progression ≥6°

52 (48)

5 (38)

47 (49)

0.556

 Decrease ≥6°

16 (15)

4 (31)

12 (13)

0.100

 Unchanged (±5°)

40 (37)

4 (31)

36 (38)

0.764