Progression of planovalgus deformity in patients with cerebral palsy

Table 2 Interobserver and intraobserver reliability of the radiographic measurements

	Interobserver reliability		Intraobserver reliability
Measurement	ICC	95% CI	ICC	95% CI
AP talo-first metatarsal angle	0.917	0.810–0.961	0.944	0.893–0.971
AP talo-second metatarsal angle	0.937	0.888–0.966	0.931	0.869–0.964
Hallux valgus angle	0.953	0.920–0.974	0.961	0.925–0.980
Lat talo-first metatarsal angle	0.934	0.889–0.963	0.949	0.903–0.974

ICC intraclass correlation coefficients, CI confidence interval, AP anteroposterior, Lat lateral

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