Table 4. Correlation coefficients between M1-M2A and loading point/foot deformity parameters.

Data were extracted from Table 3 focusing on intermetatarsal angles and foot deformity parameters. M1-M2A, intermetatarsal angle between first and second metatarsals; M1-M5A, intermetatarsal angle between first and fifth metatarsals; M2-M5A, intermetatarsal angle between second and fifth metatarsals; ADL, activities of daily living; TCA, tibio-calcaneal angle; PFI, pronated foot index; HVA, hallux valgus angle.

	Loading point index	TCA	PFI	Talo-1st metatarsal angle
M1-M2A	r = 0.428 (p < 0.001)	r = 0.369 (p < 0.001)	r = -0.411 (p < 0.001)	r = 0.250 (p = 0.006)
	HVA	M1-M5A	M2-M5A	Hardy grade
M1-M2A	r = 0.666 (p < 0.001)	r = 0.552 (p < 0.001)	r = -0.224 (p = 0.014)	r = 0.716 (p < 0.001)