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Table 5 Post-hoc Scheffé tests between different anchor density groups

From: The correlations between the anchor density and the curve correction of adolescent idiopathic scoliosis surgery

 

Groups comparison

Mean difference

p value

All patients

 Fused level

Low > Middle

0.06

0.99

Low > High

2.14

0.001

Middle > High

2.09

< 0.001

 TK correction

Low < Middle

5.64°

0.10

Low < High

9.25°

0.004

Middle < High

3.62°

0.14

Lenke 1-3

 Fused level

Low > Middle

0.17

0.94

Low > High

2.11

0.003

Middle > High

1.94

< 0.001

 TK correction

Low < Middle

6.03°

0.049

Low < High

8.79°

0.01

Middle < High

2.76°

0.50

Lenke 1

 Fused level

Low > Middle

0.14

0.94

Low > High

0.87

0.10

Middle > High

0.73

0.06

 TK correction

Low < Middle

10.21°

0.01

Low < High

10.60°

0.01

Middle < High

0.39°

0.99

  1. Note: only the parameters with significant difference in analysis of variance were listed
  2. TK thoracic kyphosis; Low: anchor density ≤ 1.4; Middle: 1.4 < anchor density ≤ 1.7; High: anchor density > 1.7