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Table 4 12-month follow-up descriptive characteristics stratified by prepregnancy BMI (n = 1316)

From: Socioeconomic disparities in prepregnancy BMI and impact on maternal and neonatal outcomes and postpartum weight retention: the EFHL longitudinal birth cohort study

 

Prepregnancy BMI

 

Underweight

Normal weight

Overweight

Obese

(BMI < 18.5)

(BMI 18.5-24.99)

(BMI 25-29.99)

(BMI ≥ 30)

Characteristics

(N=103)

(N= 713)

(N= 289)

(N= 211)

p-value (two-sided)

Maternal Factor:

Maternal mental health

     

  Low risk

87 (85.3%)

653 (92.2%)

256 (89.8%)

184 (87.6%)

0.032*b

  Medium risk

11 (10.8%)

45 (6.4%)

27 (9.5%)

24 (11.4%)

  High risk

4 (3.9%)

10 (1.4%)

2 (0.7%)

2 (1.0%)

  Missing data

1

5

4

1

5+ alcoholic drinks on one occasion (one per week or more often)

5 (4.9%)

54 (7.6%)

25 (8.7%)

8 (3.8%)

0.126

  Missing data

0

0

2

0

One month or more as a lone parent

22 (21.8%)

108 (15.3%)

39 (13.6%)

46 (21.8%)

0.030*b

  Missing data

2

5

2

0

Weight retention

     

  Mean in kg (SD)

3.64 (5.7)

2.33 (5.2)

2.48 (6.2)

-0.78 (9.3)

<0.001*c

Nutrition and Physical Activity Factor:

Breastfeed longer than or equal to 3 months

69 (67.0%)

514 (72.7%)

171 (59.8%

116 (55.8%)

<0.001*a-

  Missing data

0

6

3

3

 

Four serves or more of fruit and vegetables each day

29 (28.2%)

230 (32.3%)

71 (24.6%)

56 (26.7%)

0.073

  Missing data

0

1

0

1

Takeaway food (more than once a week)

12 (11.8%)

49 (6.7%)

23 (8.0%)

26 (12.3%)

0.035*b

  Missing data

1

9

1

0

Play group or recreational activity with baby

53 (51.5%)

468 (65.7%)

158 (55.1%)

127 (60.5%)

0.002*b

  Missing data

0

1

2

1

Moderate physical activity (30+ minutes, at least once per week)

46 (44.7%)

443 (62.8%)

175 (61.2%)

128 (61.5%)

0.006*b

  Missing data

0

8

3

3

 

Walking (30+ minutes, at least once per week)

84 (81.6%)

634 (89.3%)

252 (88.4%)

175 (83.7%)

0.038*b

  Missing data

0

3

4

2

Child Development and Household Factor:

Injury of child

19 (18.4%)

106 (14.9%)

50 (17.4%)

35 (16.7%)

0.658

  Missing data

0

0

1

1

 

Asthma

4 (3.9%)

59 (8.4%)

34 (11.8%)

26 (12.4%)

0.004*a+

Chest infection

17 (16.7%)

153 (21.7%)

63 (21.9%)

54 (25.7%)

0.330

  Missing data

1

7

1

1

 

Baby weight gain

     

  Mean in kg (SD)

6.38 (1.7)

6.34 (1.5)

6.64 (1.5)

6.62 (1.3)

0.019*c

Passive smoking

6 (5.8%)

40 (5.6%)

22 (7.7%)

15 (7.1%)

0.626

  Missing data

0

0

2

0

  1. *Significant at the 0.05 level.
  2. aTest for ordinal association using Gamma coefficient (+indicates a positive association; -indicates a negative association).
  3. bTest for association using chi-square test.
  4. cTest for difference in means using ANOVA (Difference found between normal and overweight).
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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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