Table 1 Summaries of clinical characteristics of congenital myotonic dystrophy

Our cases 1

34

2174

1900

1

134

2

23.5

526

2600

2

65

3

40

3232

1820

1

43

4

36

3096

1700

1

90

5

26

982

2400

2

326

6

36.3

2031

2100

2

3

7

33.6

2085

1200

1

141

8

35.4

2597

2100

2

2

9

34.2

2252

2200

2

409

10

35.5

2370

1000

1

43

11

37.4

2886

1250

1

86

12

37.4

2434

1450

1

100

13

37.6

2226

1800

1

71

14

38.2

2344

1400

1

71

15

30

1190

1000

1

96

16

37

2600

900

1

0

17

37

2676

600

1

2

18

25

758

1100

1

236

19

33.1

2018

2200

2

2

20

33.3

1656

2200

1

129

21

28.3

848

1500

2

285

22

31.3

1640

2400

1

160

Yamaguchi [17]

37.6

2838

1375

1

49

Yee [18]

34.6

2058

2700

2

397

36.6

2985

1300

1

29

38

3600

1100

1

20

38.2

3140

1300

1

21

29.1

1380

1000

1

260

38.5

3450

700

1

24

31.5

1710

1700

1

91

37

2850

1270

1

5

31

1640

2000

2

45

Tsuji [19]

30

1322

1600

2

365

35

2618

2200

2

635

35

1892

1300

1

180

Yamashita [20]

37.6

2876

2600

1

120

Fuma [21]

31.6

1411

2500

2

730

Banno [22]

37

2786

1100

1

80

36

2434

1650

1

70

Kanazawa [23]

25.1

678

2100

2

61

Minami [24]

40

2935

1630

1

40

Takagi [25]

35.4

2266

2100

1

166

Sato [26]

42.1

3378

2100

1

123

26.2

896

1000

1

153

Miyagi [27]

29

1200

1800

2

17

Utunomiya [28]

34.6

1890

2900

1

136

Kondo [29]

23.3

660

1950

2

425

Yanagi [30]

36.2

2410

1500

1

172

34.4

1724

1000

1

145

33.3

2014

3000

1

203

Enomoto [31]

33.1

2190

2900

2

545

Saito [32]

28.6

850

1700

1

221

Nakayama [33]

28.5

946

1750

1

240