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Table 3 Reproducibility of ultrasound measurements

From: Ultrasound assessment of skin thickness and stiffness: the correlation with histology and clinical score in systemic sclerosis

Measurements

Intraclass correlation coefficient (95% confidential interval)

Intra-observer

Inter-observer

TST

 Finger

0.910 (0.865–0.940)

0.901 (0.821–0.947)

 Hand

0.920 (0.880–0.947)

0.937 (0.883–0.966)

TSE

 Finger

0.945 (0.918–0.964)

0.897 (0.813–0.944)

 Hand

0.957 (0.934–0.971)

0.840 (0.718–0.912)

  1. TST total skin thickness, TSE total skin elasticity