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Table 3 Number of children and measurements (in brackets) in relation to gross motor function classification system (GMFCS) level and age.

From: Development of lower limb range of motion from early childhood to adolescence in cerebral palsy: a population-based study

Age

GMFCS I

GMFCS II

GMFCS III

GMFCS IV

GMFCS V

Total

2

61 (128)

20 (47)

28 (81)

24 (76)

26 (76)

(408)

3

90 (194)

30 (70)

33 (100)

28 (84)

29 (82)

(530)

4

120 (271)

36 (99)

40 (124)

33 (108)

38 (122)

(724)

5

129 (276)

37 (100)

44 (129)

32 (106)

40 (118)

(729)

6

128 (205)

46 (85)

32 (67)

36 (80)

32 (76)

(513)

7

138 (214)

30 (55)

36 (81)

33 (68)

29 (66)

(484)

8

99 (155)

28 (56)

33 (67)

24 (52)

25 (54)

(384)

9

93 (146)

26 (47)

31 (61)

24 (56)

25 (58)

(368)

10

82 (131)

23 (40)

28 (53)

18 (38)

19 (42)

(304)

11

63 (99)

20 (34)

25 (53)

13 (28)

14 (34)

(248)

12

43 (64)

19 (40)

19 (35)

11 (26)

13 (34)

(199)

13

33 (48)

13 (24)

12 (21)

8 (16)

5 (10)

(119)

14

16 (22)

11 (19)

6 (12)

3 (6)

3 (6)

(65)

Total

(1953)

(716)

(884)

(744)

(778)

(5075)

  1. Notice that each child can contribute more than one measurement at a specific age.