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Table 3 Post-operative clinical and functional outcome measured and FADI

From: Operative versus nonoperative treatment in children with painful rigid flatfoot and talocalcaneal coalition

Clinical outcome

Group A (nonoperative)

Group B (operative)

p-value

Crude mean

Estimated mean

Crude mean

Estimated mean

FADI tot

83 (57–100)

81 (78–84)

92 (64–100)

93 (87–98)

<.0005

FADI pain

87 (50–100)

85 (82–100)

94 (69–100)

97 (92–100)

<.0005

FADI function

85 (59–100)

84 (81–87)

93 (64–100)

94 (90–98)

.03

FADI sport

74 (47–100)

72 (68–77)

87 (63–100)

86 (80–93)

<.0005

  1. Group A: non-operative group. Group B (operative group). The results are expressed as crude and estimated means. The crude means are reported as mean and range. The estimated means were adjusted by inverse probability of treatment weights (IPTW) and follow-up duration (covariates were calculated at 6.5 years of follow-up), using the patient as random effect to avoid violation of the principle of independence in bilateral cases. 95% confidence interval of the estimated mean is reported in brackets. The P-value in the last column is referred to the statistical difference between the estimated means of the two groups