Predicting Adolescent Idiopathic Scoliosis among Chinese Children and Adolescents
Table 1
Demographic characteristics of participants and the prevalence of incorrect posture stratified by AIS ().
Variables
Non-AIS group () n (%)
AIS group () (%)
value
Total
895 (50.3)
884 (49.7)
Gender
146.84
<0.001
Boys
572 (63.9)
311 (35.2)
Girls
323 (36.1)
573 (64.8)
Age (year)a
-4.63
<0.001
School category
34.29
<0.001
Primary school
359 (40.1)
239 (27.0)
Junior high school
374 (41.8)
458 (51.8)
Senior high school
162 (18.1)
187 (21.2)
Shoulder-height difference
333.96
<0.001
Normal
779 (87.0)
410 (46.4)
Left shoulder height
73 (8.2)
252 (28.5)
Right shoulder height
43 (4.8)
222 (25.1)
Scapular tilt
554.97
<0.001
Normal
764 (85.4)
268 (30.3)
Tilt to the left
85 (9.5)
349 (39.5)
Tilt to the right
46 (5.1)
267 (30.2)
Lumbar concave
346.90
<0.001
Normal
814 (90.9)
450 (50.9)
Left concave
31 (3.5)
181 (20.5)
Right concave
50 (5.6)
253 (28.6)
Pelvic tilt
130.22
<0.001
Normal
860 (96.1)
694 (78.5)
Tilt to the left
23 (2.6)
68 (7.7)
Tilt to the right
12 (1.3)
122 (13.8)
Flat back
4.57
0.033
Normal
893 (99.8)
875 (99.0)
Abnormal
2 (0.2)
9 (1.0)
Thoracic kyphosis
14.35
<0.001
Normal
886 (99.0)
851 (96.3)
Abnormal
9 (1.0)
33 (3.7)
Lumbar kyphosis
0.16
0.694b
Normal
891 (99.6)
882 (99.8)
Abnormal
4 (0.4)
2 (0.2)
Angle of thoracic rotation
272.54
<0.001
Normal (ATR: 0-5°)
853 (95.3)
565 (63.9)
Rotate to the left ()
18 (2.0)
90 (10.2)
Rotate to the right ()
24 (2.7)
229 (25.9)
Angle of thoracolumbar rotation
41.82
<0.001
Normal (ATR: 0-5°)
872 (97.4)
796 (90.0)
Rotate to the left ()
9 (1.0)
42 (4.8)
Rotate to the right ()
14 (1.6)
46 (5.2)
Angle of lumbar rotation
261.45
<0.001
Normal (ATR: 0-5°)
816 (91.2)
511 (57.8)
Rotate to the left ()
61 (6.8)
277 (31.3)
Rotate to the right ()
18 (2.0)
96 (10.9)
Abbreviations: AIS: adolescent idiopathic scoliosis; n: number; ATR: angle of trunk rotation. aAge were presented as the mean (standard deviation). bUsing chi-square test continuity correction calculation.
