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Table 2 Distribution of GMFCS-levels in relation to popliteal angle measurements during childhood

From: Change in popliteal angle and hamstrings spasticity during childhood in ambulant children with spastic bilateral cerebral palsy. A register-based cohort study

 

2 years

4 years

6 years

8 years

10 years

12 years

14 years

GMFCS I

17.9 (15.6–20.3)

23.8 (22.1–25.5)

28.3 (26.8–29.7)

32.1 (30.5–33.6)

35.4 (33.6–37.2)

39.4 (36.2–40.6)

41.2 (38.6–43.7)

GMFCS II

23.8 (21.3–26.4)

29.4 (27.5–31.4)

33.7 (32.0–35.4)

37.2 (35.4–39.1)

40.3 (37.9–42.7)

43.1 (40.0–46.1)

45.6 (41.8–49.6)

GMFCS III

28.33 (25.9–30.55)

33.9 (31.9–36.0)

38.0 (36.1–40.0)

41.0 (39.0–43.0)

43.1 (40.7–45.4)

44.2 (40.6–47.7)

44.3 (38.7–49.9)

  1. Mean popliteal angle (95% CI) over time divided by the gross motor function classification system (GMFCS) levels I, II and III
  2. GMFCS: gross motor function classification system; CI: confidence interval