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Table 5 Correlation analysis reporting Spearman’s rho [95%-CI] between the different testing modalities

From: Clinical evaluation of manual stress testing, stress ultrasound and 3D stress MRI in chronic mechanical ankle instability

Parameter CCAFT CCATTH CCATTV Stress Sono Physical examination
CAIT-Score - 0.53** [−.27; −.68] −.12 [−.32; .22] 0.34* [−.09; −.5] ADT: −0.48** [−.2; −.72] TTT: −0.44** [−.19; −.69] ADT: − 0.81** [−.63; −.88] TTT: − 0.83** [−.74; −.88]
FJS −0.52** [−.27; −.73] −.28 [−.49; .17] −.15 [−.41; .27] ADT: − 0.35* [.02; −.65] TTT: − 0.41** [−.12; −.69] ADT: −0.75** [−.57; −.87] TTT: − 0.78** [−.65; −.87]
CCAFT 0.31* [−.01; .58] 0.27* [−.15; .47] ADT: −0.30* [−.05; .44] TTT: − 0.26* [−.03; .65] ADT: 0.48** [.26; .7] TT: 0.53** [.27; .73]
CCATTH n.s. ADT: n.s. TTT: n.s. ADT: .34* [−.1; .45] TTT: .36* [−.08; .48]
CCATTV ADT: n.s. TTT: n.s. ADT: n.s. TTT: n.s.
Stress sonography ADT/ADT: .47** [.12; .65] TTT/TTT: 0.43** [.15; .67]
  1. CAIT Cumberland Ankle Instability Tool, FJS Forgotten Joint Score, ADT anterior drawer test, TTT talar tilt test. 3SAM 3D stress ankle MRI
  2. For stress sonography the difference load-rest in mm was used
  3. For 3SAM-values the intraindividual relative reduction in cartilage contact area in % was used. CCAFT Cartilage contact area fibulotalar, CCATTH Cartilage contact area tibiotalar horizontal, CCATTV Cartilage contact area tibiotalar vertical
  4. Sign.: *p < 0.05, **p < 0.01, Spearman’s rho