Table 3. Pearson’s correlation coefficients, mean, and range values presented between caliper and 3D scanner measures

Measurement variables (cm)	Caliper measures		3D scanner measures		r*
	Mean±SD	Range	Mean±SD	Range
Navicular tuberosity height	4.72±0.65	3.23–6.03	4.97±0.59	3.89–6.85	0.887
Medial malleolus height	7.52±0.62	5.70–8.70	7.92±0.57	6.79–9.68	0.871
Lateral malleolus height	5.85±0.55	4.50–6.30	6.13±0.58	5.03–7.37	0.815
1st MTPJ frontal length	6.48±0.57	5.27–7.50	6.51±0.60	5.45–7.98	0.926
5th MTPJ frontal length	7.95±0.78	5.37–9.70	8.04±0.63	7.43–9.86	0.890
Foot length	23.69±1.47	19.73–26.23	23.99±1.44	21.14–26.91	0.909
1st MTPJ length	17.38±1.22	14.77–20.23	17.47±1.21	15.26–20.03	0.899
5th MTPJ length	15.78±1.04	14.10–18.00	15.35±1.20	13.23–18.35	0.819
Metatarsal length	9.24±0.60	8.13–10.57	9.59±0.64	8.24–10.83	0.924
Foot breadth length	9.01±0.55	7.83–10.08	9.34±0.63	7.97–10.70	0.917

All correlation coefficients were p<0.01, Abbreviations: MTPJ, metatarsophalangeal joint; SD, standard deviation.