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Table 3 Foot length development (mm) in children with clubfeet* with and without relapse

From: Development of foot length in children with congenital clubfoot up to 7 years of age: a prospective follow-up study

Age (years) Relapse No relapse P value
n mean (SD) n mean (SD)
2 17 133 (7) 44 134 (8) 0.519
2.5 21 139 (9) 46 142 (8) 0.254
3 22 143 (10) 48 148 (8) 0.051
3.5 18 148 (11) 44 154 (8) 0.033
4 22 154 (10) 49 158 (9) 0.065
4.5 23 157 (10) 47 162 (9) 0.032
5 23 162 (9) 46 167 (9) 0.024
5.5 20 165 (9) 37 171 (9) 0.05
6 21 171 (9) 43 175 (10) 0.074
6.5 20 177 (9) 39 180 (9) 0.314
7 20 181(12) 40 184 (12) 0.354
n, number of measurements; SD, standard deviation, P values after Student’s t test. Significance set up to P < 0.005 after Bonferroni correction. * unilateral and bilateral (one randomly selected foot from each child was included)