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Table 3 Basic characteristics of bar displacement index tertiles

From: A clinical decision-making model for repeat surgical treatment of pectus Bar displacement: distance measurement after nuss procedure

Variable |(bar0-bar1)/bar0 | x 100
Tertile 1 (0–2.9) N* = 30 Tertile 2 (2.9-7.2) N* = 30 Tertile 3 (>7.2) N* = 30 P
Age 14.5 ± 9 15.5 ± 7.6 18.7 ± 7.5 0.1167
Sex     0.6644
 Male 22 24 21  
 Female 8 6 9  
BMI 18 ± 2.7 18.1 ± 2.9 19.9 ± 2.6 0.0135
 Height 1.5 ± 0.3 1.6 ± 0.2 1.7 ± 0.2 0.0141
 Weight 43.6 ± 19.4 48.7 ± 16.4 57.9 ± 13.7 0.0049
Pre-HI 4 ± 1.3 4.1 ± 1 4.4 ± 1.2 0.3708
Post-HI 2.6 ± 0.3 2.8 ± 0.4 2.8 ± 0.4 0.0725
Type     0.8747
 Symmetric 16(53.3 %) 15(50 %) 17(56.7)  
 Asymmetric 14(46.7 %) 15(50 %) 13(43.3)  
Grade     < .0001
 1 30(100 %) 25(83.3 %) 13(43.3 %)  
 2 0 3(10 %) 9(30 %)  
 3 0 2(6.7 %) 5(16.7 %)  
 4 0 0 3(10 %)  
No. of inserted bars     < .0.001
 1 19(63.3 %) 10(33.3 %) 3(10 %)  
 2 11(36.7 %) 20(66.7 %) 27(90 %)  
  1. N* number of bar