The number of children with U-toe

4-year

4.5-year

5-year

5.5-year

6-year

6.5-year

Total

B-group

n

32

25

24

15

25

17

138

NB-group

n

15

31

31

26

27

20

150

Left foot

Fifth toe

B-group

n

27

15

18

9

16

13

98

(%)

84.4

60.0

75.0

60.0

64.0

76.5

71.0

NB-group

n

12

24

26

21

21

11

115

(%)

80.0

77.4

83.9

80.8

77.8

55.0

76.7

Fourth toe

B-group

n

5

2

2

0

3

0

12

(%)

15.6

8.0

8.3

0.0

12.0

0.0

8.7

NB-group

n

2

3

2

0

2

1

10

(%)

13.3

9.7

6.5

0.0

7.4

5.0

6.7

Third toe

B-group

n

1

0

0

0

0

0

1

(%)

3.0

0.0

0.0

0.0

0.0

0.0

0.7

NB-group

n

0

1

0

1

0

0

2

(%)

0.0

3.2

0.0

3.8

0.0

0.0

1.3

Second toe

B-group

n

2

1

1

0

0

0

4

(%)

6.3

4.0

4.2

0.0

0.0

0.0

2.9

NB-group

n

2

3

1

1

4

0

11

(%)

13.3

9.7

3.2

3.8

14.8

0.0

7.3

First toe

B-group

n

0

0

0

0

0

0

0

(%)

0.0

0.0

0.0

0.0

0.0

0.0

0.0

NB-group

n

0

0

0

1

0

0

1

(%)

0.0

0.0

0.0

3.8

0.0

0.0

0.7

Right foot

Fifth toe

B-group

n

19

20

18

9

20

14

100

(%)

59.4

80.0

75.0

60.0

80.0

82.4

72.5

NB-group

n

7

20

22

19

17

13

98

(%)

46.7

64.5

71.0

73.1

63.0

65.0

65.3

Fourth toe

B-group

n

4

4

0

0

6

0

14

(%)

12.5

16.0

0.0

0.0

24.0

0.0

10.1

NB-group

n

2

2

3

2

1

1

11

(%)

13.3

6.5

9.7

7.7

3.7

5.0

7.3

Third toe

B-group

n

0

0

0

0

1

0

1

(%)

0.0

0.0

0.0

0.0

4.0

0.0

0.7

NB-group

n

0

2

0

1

0

0

3

(%)

0.0

6.5

0.0

3.8

0.0

0.0

2.0

Second toe

B-group

n

1

2

0

0

2

0

5

(%)

3.1

8.0

0.0

0.0

8.0

0.0

3.6

NB-group

n

3

3

0

1

2

0

9

(%)

20.0

9.7

0.0

3.8

7.4

0.0

6.0

First toe

B-group

n

0

0

0

0

0

0

0

(%)

0.0

0.0

0.0

0.0

0.0

0.0

0.0

NB-group

n

0

0

1

0

0

0

1

(%)

0.0

0.0

3.2

0.0

0.0

0.0

0.7