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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