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Table 6 The intra-class correlation coefficients (ICC) for the four measurement methods

From: Comparing 3D foot scanning with conventional measurement methods

Dimensions ICCs
3D scanning Digital caliper Digital footprint Ink footprint
Foot length 0.98 0.98 0.97 0.91
Ball of foot length 0.95 0.74 0.97 0.68
Outside ball of foot length 0.95 0.89 0.94 0.98
Foot breadth diagonal 0.95 0.89 0.98 0.59
Foot breadth horizontal 0.96 0.84 0.98 0.93
Heel breadth 0.96 0.87 0.94 0.78