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Table 4 Inter and intra-observer variability

From: Liraglutide treatment is associated with progression of coronary artery fibrous plaque: a prospective 1-year follow-up study in asymptomatic patients with type 2 diabetes

Variable

Intra-observer variability

Mean diff. [95% LOA]

r

Inter-observer variability

Mean diff. [95% LOA]

r

Total atheroma volume

5.0 [-89.7 ; 99.7]

0.98

8.5 [-176.1 ; 193.1]

0.91

Dense plaque

1.6 [-22.9 ; 26.1]

0.99

0.5 [-28.9 ; 29.9]

0.99

Fibrous plaque

5.9 [-11.5 ; 23.2]

0.95

5.7 [-13.5 ; 24.9]

0.95

Fibrous-fatty plaque

1.1 [ -28.7 ; 30.9]

0.96

5.3 [-44.9 ; 55.4]

0.87

Necrotic core plaque

-3.9 [-45.7 ; 37.9]

0.91

-3.1 [-55.7 ; 49.4]

0.86

  1. Mean diff, Mean difference between paired observations; LOA, Limits of agreement calculated as the mean difference ± 1.96 standard deviation; r, Pearson’s coefficient of correlation between paired observations.