| 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) |