Influence of footwear fitting on feet morphology in 9 year old girls

Puszczalowska-Lizis, Ewa; Zarzyczna, Paulina; Mikulakova, Wioletta; Migala, Mariusz; Jandzis, Slawomir

doi:10.1186/s12887-020-02245-z

BMC Pediatrics

Table 5 Multiple regression models and simple regression, in which independent variables are excess of indoor footwear, while dependent variables are features of the foot structure

From: Influence of footwear fitting on feet morphology in 9 year old girls

Excess of footwear	Multiple regression				Simple regression
Excess of footwear	R	R²	F	p	b	r_p	p
Summary of dependent variable regression: Clarke’s angle of the right foot [°]
Length	0.05	0.00	0.15	0.864	0.03	0.01	0.925
Width	0.05	0.00	0.15	0.864	0.11	0.04	0.689
Summary of dependent variable regression: Clarke’s angle of the left foot [°]
Length	0.10	0.01	0.52	0.591	0.05	0.01	0.878
Width	0.10	0.01	0.52	0.591	0.17	0.08	0.419
Summary of dependent variable regression: Wejsflog index of the right foot
Length	0.41	0.17	10.37	< 0.001*	−0.02	−0.39	< 0.001*
Width	0.41	0.17	10.37	< 0.001*	0.00	0.07	0.468
Summary of dependent variable regression: Wejsflog index of the left foot
Length	0.46	0.21	13.02	< 0.001*	− 0.01	− 0.43	< 0.001*
Width	0.46	0.21	13.02	< 0.001*	0.01	0.37	< 0.001*
Summary of dependent variable regression: heel angle (γ) of the right foot [°]
Length	0.16	0.03	1.26	0.285	0.07	0.09	0.326
Width	0.16	0.03	1.26	0.285	0.03	0.05	0.591
Summary of dependent variable regression: heel angle (γ) of the left foot [°]
Length	0.32	0.10	5.38	0.006*	0.19	0.31*	0.001*
Width	0.32	0.10	5.38	0.006*	−0.04	−0.13	0.194
Summary of dependent variable regression: hallux valgus angle (α) of the right foot [°]
Length	0.13	0.02	0.88	0.414	0.17	−0.12	0.204
Width	0.13	0.02	0.88	0.414	0.13	0.10	0.320
Summary of dependent variable regression: hallux valgus angle (α) of the left foot [°]
Length	0.12	0.02	0.73	0.480	0.16	0.12	0.254
Width	0.12	0.02	0.73	0.480	−0.07	−0.09	0.363
Summary of dependent variable regression: the angle of the varus deformity of the fifth toe (β) of the right foot [°]
Length	0.21	0.05	2.36	0.098	−0.00	− 0.00	0.986
Width	0.21	0.05	2.36	0.098	0.27	0.19	0.066
Summary of dependent variable regression: the angle of the varus deformity of the fifth toe (β) of the left foot [°]
Length	0.16	0.03	1.35	0.262	0.31	0.16	0.116
Width	0.16	0.03	1.35	0.262	−0.04	−0.04	0.698

R – coefficient of multiple correlation; R² – coefficient of determination; F – the Fisher-Snedecor test; b – the slope of the regression line; r_p – partial correlation; p – probability value
* p < 0.05

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