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Table 5 Trends for maternal prepregnancy BMI and gestational weight gain during 1996 ~ 2009

From: Associations of gestational weight gain with offspring thinness and obesity: by prepregnancy body mass index

 

1996~ 2000

2001~ 2005

2006~ 2009

Overall

P* for trend

Prepregnancy BMI categories§

 Underweight

22.7

23.1

24.8

23.5

0.0001

 Normal weight

71.0

71.4

70.1

70.8

0.0784

 Overweight

6.3

5.6

5.0

5.6

< 0.0001

GWG categories

 Overall#

  Inadequate

58.7

42.1

33.4

44.2

< 0.0001

  Adequate

25.2

31.9

34.7

30.9

< 0.0001

  Excessive

16.2

26.0

31.8

25.0

< 0.0001

 Prepregnancy underweight#

  Inadequate

58.6

42.6

34.9

44.5

< 0.0001

  Adequate

24.9

32.3

37.1

31.8

< 0.0001

  Excessive

16.6

25.1

28.0

23.7

< 0.0001

 Prepregnancy normal weight#

  Inadequate

61.0

43.2

34.2

45.6

< 0.0001

  Adequate

23.8

31.5

33.9

30.0

< 0.0001

  Excessive

15.2

25.3

31.9

24.5

< 0.0001

 Prepregnancy overweight#

  Inadequate

32.4

25.9

15.1

24.9

< 0.0001

  Adequate

42.0

36.3

35.1

37.8

0.0069

  Excessive

25.6

37.8

49.8

37.2

< 0.0001

  1. Values are presented as percentages
  2. GWG gestational weight gain, BMI body mass index
  3. *The Cochran-Armitage trend test were used for comparing the prevalence of each prepregnancy BMI and GWG category in different years
  4. #Significant proportions (P < 0.0001) of GWG category during different period
  5. §Significant proportions (P < 0.0001) of prepregnancy BMI category during different period
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Reproductive Health

ISSN: 1742-4755