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| |
IGCA
|
Non-IGCA
|
t/χ2 value
|
P value
|
|---|
|
Patient No.
|
27
|
25
| | |
|
Sex (M:F)
|
2:25
|
6:19
|
2.745
|
0.098#
|
|
Age at surgery (yr)
|
63.5 ± 6.4
|
65.2 ± 8.0
|
−0.863
|
0.392*
|
|
Instrumented levels
|
9.6 ± 2.2
|
8.8 ± 2.8
|
1.142
|
0.259*
|
|
UIV (T10 or above: below)
|
21:6
|
15:10
|
1.926
|
0.165#
|
|
Osteotomy grades
|
1.9 ± 0.3
|
1.9 ± 0.3
|
0.552
|
0.583*
|
|
Osteotomy levels
|
3.5 ± 1.0
|
3.1 ± 0.8
|
1.327
|
0.191*
|
- Results are given as the number or the mean ± standard deviation (SD) unless otherwise stated
- *Independent t test
- # Chi-square test
- IGCA indicates integrated global coronal aligner, UIV Upper instrumented vertebra
