Table 2 Foot length growth percentage in reference feet* and in clubfeet**
Age interval (years) | Reference | Clubfeet | P value | ||
|---|---|---|---|---|---|
n | mean (SD) | n | mean (SD) | ||
2–2.5 | 36 | 5.4 (4) | 61 | 5.4 (4) | 0.971 |
2.5–3 | 36 | 5.0 (3) | 65 | 4.4 (3) | 0.300 |
3–3.5 | 37 | 3.5 (2) | 61 | 3.9 (2) | 0.362 |
3.5–4 | 38 | 3.3 (2) | 62 | 2.9 (2) | 0.329 |
4–4.5 | 42 | 3.4 (2) | 69 | 2.8 (2) | 0.077 |
4.5–5 | 39 | 2.9 (2) | 67 | 3.0 (2) | 0.900 |
5–5.5 | 32 | 2.8 (2) | 55 | 2.5 (2) | 0.419 |
5.5–6 | 30 | 2.4 (2) | 52 | 2.7 (2) | 0.464 |
6–6.5 | 34 | 2.4 (2) | 55 | 2.9 (2) | 0.203 |
6.5–7 | 31 | 2.6 (2) | 49 | 2.3 (2) | 0.688 |
Total (2–7) | 28 | 40 (6) | 49 | 38 (7) | 0.216 |
n, number of measurements; SD, standard deviation. P values after Student’s t test. Significance set up to P < 0.005 after Bonferroni correction. *Contralateral feet in children with unilateral clubfoot. ** unilateral and bilateral (one randomly selected foot from each child was included) | |||||