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Table 1 Demographic and outcome data

From: Effects of lifestyle intervention on dietary intake, physical activity level, and gestational weight gain in pregnant women with different pre-pregnancy Body Mass Index in a randomized control trial

 

Pre-pregnancy BMI ≤ 24.9

Pre-pregnancy BMI ≥ 25

Variables

Control n = 27

Intervention n = 30

P-value

Control n = 29

Intervention n = 27

P-value

Age (years)

29 ± 6

31 ± 3

0.06

32 ± 5

31 ± 4

0.41

Length of intervention (weeks)

0

27.83 ± 5.67

 

0

26.74 ± 6.17*

 

Family annual income ($)

54,404 ± 33,689

53,564 ± 24,128

0.91

50,992 ± 23,199

56,772 ± 26,355

0.39

First Nations (number %)

1/27

2/30

0.62

4/29

3/27

0.92

Pre-pregnancy BMI

22.6 ± 1.9

21.6 ± 2.2

0.06

29.7 ± 1.3

29.5 ± 5.1

0.92

Gestational weeks (week)

39.6 ± 0.9

39.7 ± 1.1

0.78

39.8 ± 1.1

39.7 ± 1.3

0.92

Gestational weight gain (kg)

16.23 ± 4.38

12.9 ± 3.72

0.03

14.39 ± 7.05

15.21 ± 7.5

0.26

EGWG (2009 IOM guidelines number %)

10/27 (37%)

3/30 (10%)

0.03

20/29 (69%)

18/27 (67%)

0.67

Birth weight (g)

3,633 ± 555

3,356 ± 474

0.047

3650 ± 481

3,665 ± 506

0.92

Large-for-gestational-age (n %)

3/27 (11%)

2/30 (7%)

0.902

1/29 (3%)

4/27 (15%)

0.13

Gestational diabetes (n %)

0/27

0/30

NS

3/29 (10%)

1/27 (4%)

0.307

Cesarean section (n %)

0/27

0/30

NS

2/29 (7%)

0/27

0.503

  1. Values were expressed in mean ± SD or case/total (0%). P values with underline are statistical significant.
  2. *The p value between the pre-pregnancy BMI ≤ 24.9 intervention group and the Pre-pregnancy BMI ≥ 25 intervention group is 0.49.