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Table 1 Flat foot group (n = 31, 3 raters) inter-rater reliability analyses.

From: The paediatric flat foot proforma (p-FFP): improved and abridged following a reproducibility study

p-FFP ICC (95% CI) – approximated at > 0.7
FINDINGS
Tender areas 0.85 (0.75–0.92)  
Gait 0.78 (0.62–0.88)  
DIAGNOSIS
Flat foot type 0.67 (0.46–0.82)  
OBSERVED Left right
Medial longitudinal arch 0.78 (0.61–0.88) 0.85 (0.72–0.92)
Heel eversion 0.65 (0.39–0.81) 0.47 (0.42–0.72)
Heel inversion with tip toe 1.00 (1.00) 0.64 (0.27–0.82)
Obesity 0.84 90.74–0.91)  
ASSESSED
Local tender areas 0.84 (0.31–0.87) 0.78 (0.62–0.88)
Tibia, knee position 0.51 (0.19–0.73) 0.67 (0.45–0.82)
MEASURES
RCSP 0.77 (0.62–0.87) 0.19 (-0.35–0.56)
Navicular height 0.66 (0.43–0.81) 0.73 (0.56–0.85)
FPI-6/medial longitudinal arch 0.81 (0.68–0.89) 0.69 (0.47–0.83)
  1. Inter rater results
  2. Intraclass correlations (1,1)
  3. The inter-rater reliability analysis resulted in the items tabulated below being deemed 'acceptable' in terms of the designated reliability cut-off (ICC > 0.70). The mean reliability of the new p-FFP is 0.71 [ICC (1,1)].