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Table 3 Prevalence of postural defects among 8- to 12-year-old children

From: Relationship between lower-extremity defects and body mass among polish children: a cross-sectional study

Deformities Whole study group (n = 6992)
  n % 95% CI
Limb deformities overalla 2201 31.5 30.4–32.6
Varus knee 14 0.2 0.1–0.3
Valgus knee 1017 14.5 13.7–15.3
Valgus heel 1526 21.8 20.8–22.8
Flatfoot overall 332 4.7 4.2–5.2
 I degree 149 2.1 1.8–2.5
 II degree 123 1.8 1.5–2.1
 III degree 53 0.8 0.6–1.0
 IV degree 7 0.1 0.0–0.2
  1. aChildren may have more than one limb deformity