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Table 2 Correlations between 3D foot features and footprint indices

From: Analysis of skeletal characteristics of flat feet using three-dimensional foot scanner and digital footprint

Male	Age	BMI	IH	NH	TAW	TAH	FFH	GFH	ABD
Age	1	−0.18	0.08	0.03	0.16^a	0.09	0.05	0.10	0.14
BMI	−0.18^a	1	0.21^a	0.13	0.1	0.21^a	−0.03	−0.01	−0.1
CSI	0.03	0.10	−0.53^b	−0.56^b	0.14	−0.13	0.04	0.30^b	0.18^a
SI	0.02	0.09	−0.52^b	−0.58^b	0.16	−0.2^b	0.11	0.27^b	0.15
Forefoot	0.15	0.01	0.05	0.02	0.60^b	0.18^a	0.14	0.19^a	0.01
Midfoot	0.08	0.09	−0.51^b	−0.54^b	0.27^b	−0.10	0.07	0.35^b	0.17^a
Heel	0.19^a	−0.05	0.14	0.21^a	0.32^b	0.2^a	−0.1	0.16^a	0.07

Female	Age	BMI	IH	NH	TAW	TAH	FFH	GFH	ABD
Age	1	−0.09	−0.15	−0.11	0.23	−0.18	0.03	0.25	0.19
BMI	−0.09	1	0.09	0.01	0.17^d	0.46^d	0.15^c	0.00	−0.07
CSI	0.14^c	0.27^d	−0.41^d	−0.41^d	0.15^c	−0.06	−0.09	0.12	0.13^c
SI	0.21^d	0.24^d	−0.41^d	−0.39^d	0.22^c	−0.10	−0.02	0.15^c	0.08
Forefoot	0.21^d	0.00	0.03	0.06	0.56^d	0.03	0.18^d	0.21^d	0.00
Midfoot	0.21^d	0.25^d	−0.38^d	−0.37^d	0.29^d	−0.05	0.00	0.16^d	0.11
Heel	−0.02	0.07	0.17^d	0.13^c	0.17^d	0.21^d	0.09	0.02	0.07

Pearson coefficient (^ap < 0.05, ^bp < 0.01). Listed results are for the male/female patricipants
Pearson coefficient (^cp < 0.05, ^dp < 0.01). Listed results are for female participants

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