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Table 1 Patient characteristics between IGCA and non-IGCA groups

From: A novel integrated global coronal aligner helps prevent post-operative standing coronal imbalance in adult spinal deformity patients fused to pelvis: technical notes and preliminary results

  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*
  1. Results are given as the number or the mean ± standard deviation (SD) unless otherwise stated
  2. *Independent t test
  3. # Chi-square test
  4. IGCA indicates integrated global coronal aligner, UIV Upper instrumented vertebra