Table 1 Geographic, urban- and rural-specific birth prevalence of omphalocele (per 10,000 births) in China, 1996–2010

1996

31

1.44(1.42-1.47)

25

1.21(1.19-1.25)

36

1.21(1.20-1.24)

20

1.59(1.56-1.65)

56

1.33(1.32-1.34)

1997

30

1.50(1.48-1.53)

16

0.73(0.71-0.77)

32

1.08(1.07-1.11)

14

1.14(1.10-1.20)

46

1.10(1.09-1.12)

1998

42

2.03(2.01-2.06)

29

1.30(1.29-1.34)

42

1.39(1.38-1.41)

29

2.28(2.25-2.34)

71

1.65(1.64-1.67)

1999

42

1.90(1.88-1.93)

41

1.82(1.80-1.85)

53

1.69(1.68-1.71)

30

2.25(2.22-2.31)

83

1.86(1.85-1.87)

2000

44

1.77(1.75-1.80)

39

1.55(1.53-1.57)

55

1.56(1.54-1.58)

28

1.90(1.87-1.95)

83

1.66(1.65-1.67)

2001

37

1.54(1.53-1.57)

30

1.24(1.22-1.27)

45

1.37(1.36-1.39)

22

1.42(1.40-1.47)

67

1.39(1.38-1.40)

2002

34

1.31(1.30-1.34)

41

1.54(1.52-1.56)

44

1.22(1.21-1.24)

31

1.87(1.84-1.91)

75

1.43(1.42-1.44)

2003

36

1.46(1.45-1.49)

30

1.55(1.53-1.59)

37

1.27(1.26-1.30)

29

1.93(1.91-1.98)

66

1.50(1.49-1.52)

2004

54

1.71(1.70-1.73)

47

1.58(1.56-1.60)

68

1.61(1.61-1.63)

33

1.70(1.68-1.74)

101

1.64(1.64-1.65)

2005

55

1.71(1.69-1.73)

33

1.15(1.14-1.18)

47

1.15(1.14-1.17)

41

2.05(2.03-2.09)

88

1.45(1.44-1.46)

2006

48

1.39(1.38-1.41)

49

1.55(1.53-1.57)

61

1.40(1.39-1.41)

36

1.59(1.57-1.62)

97

1.46(1.46-1.47)

2007

69

1.63(1.62-1.64)

51

1.28(1.27-1.30)

70

1.26(1.25-1.27)

50

1.89(1.88-1.92)

120

1.46(1.46-1.47)

2008

81

1.83(1.82-1.84)

52

1.30(1.29-1.31)

72

1.30(1.29-1.31)

61

2.10(2.08-2.12)

133

1.57(1.57-1.58)

2009

93

2.00(2.00-2.02)

52

1.23(1.22-1.24)

82

1.46(1.46-1.48)

63

1.92(1.91-1.94)

145

1.63(1.63-1.64)

2010

59

1.58(1.57-1.60)

32

0.96(0.94-0.98)

56

1.22(1.21-1.24)

35

1.40(1.38-1.43)

91

1.28(1.28-1.29)