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Table 3 Behavioural and dietary measures of women (including changes over time) in each study arm (ITT and PP analyses)

From: Evaluation of the 'healthy start to pregnancy' early antenatal health promotion workshop: a randomized controlled trial

Health behaviors

Analysis

Baseline difference (HSP - UC)

HSP 1 (n)

HSP 2 (n)

HSP mean difference over time

Usual care 1 (n)

Usual care 2 (n)

UC mean difference over time

Between group difference, time 2: HSP - UC (95%CI)

Mean serves of fruit per day (± SD)

ITT

p = 0.60

1.9 ± 1.2 (176)

2.2 ± 1.1 (112)

0.3 ± 1.0 (112)

1.8 ± 1.2 (182)

1.9 ± 1.1 (126)

0.2 ± 0.9 (128)

+0.2 (−0.1-0.4), p= 0.14

 

PP*

-

2.0 ± 1.0 (87)

2.4 ± 1.0 (72)

0.4 ± 1.0 (72)

1.8 ± 1.2 (271)

1.9 ± 1.1 (168)

0.1 ± 0.9 (168)

+0.4 (0.1-0.6), p = 0 . 004

Serves of vegetables per day (± SD)

ITT

p = 0.24

2.5 ± 1.3 (177)

2.9 ± 1.3 (112)

0.4 ± 1.1 (112)

2.3 ± 1.3 (182)

2.5 ± 1.3 (129)

0.2 ± 1.1 (129)

+0.2 (−0.1 - 0.5), p = 0.11

 

PP*

-

2.7 ± 1.4 (87)

3.3 ± 1.3 (72)

0.6 ± 1.1 (72)

2.3 ± 1.2 (272)

2.4 ±1.2 (169)

0.2 ± 1.0 (169)

+0.4 (0.1-0.7), p = 0 . 006

Diet quality – Fat score (± SD)

ITT

p = 0.61

3.3 ± 0.5 (174)

3.4 ± 0.5 (109)

0.1 ± 0.4 (108)

3.3 ± 0.5 (180)

3.4 ± 0.5 (126)

0.1 ± 0.3 (126)

−0.02 (−0.07-0.1), p = 0.68

 

PP*

-

3.3 ± 0.5 (86)

3.4 ± 0.4 (69)

0.1 ± 0.3 (69)

3.3 ± 0.5 (268)

3.3 ± 0.5 (166)

0.04 ± 0.3 (165)

0.09 (0.003 - 0.2), p = 0 . 049

Diet quality – Fibre score (± SD)

ITT

p = 0.64

2.8 ± 0.7 (174)

2.9 ± 0.6 (109)

0.1 ± 0.3 (108)

2.7 ± 0.7 (180)

2.8± 0.7 (126)

0.1 ± 0.4 (126)

0.06 (−0.04-0.2), p = 0.24

 

PP

-

2.9 ± 0.6 (86)

3.0 ± 0.6 (69)

0.1 ± 0.4 (69)

2.7 ± 0.7 (268)

2.8 ± 0.7 (166)

0.06 ± 0.4 (165)

0.07 (−0.05 - 0.2), p = 0.25

Diet quality – Total score (± SD)

ITT

p = 0.89

3.1 ± 0.5 (174)

3.2 ± 0.5 (109)

0.1 ± 0.3 (108)

3.1 ± 0.5 (180)

3.2 ± 0.4 (126)

0.1 ± 0.3

0.04 (−0.03 - 0.1), p = 0.31

 

PP*

-

2.1 ± 0.5 (86)

2.5 ± 0.4 (69)

0.1 ± 0.3 (69)

1.5 ± 0.4 (268)

2.1 ± 0.4 (166)

0.05 ± 0.3 (165)

0.09 (0.009 - 0.2), p = 0 . 027

Weekly minutes of physical activity (Median; IQR)

ITT

p = 0.33

150 (45,270) (177)

190 (100 , 330) (110)

11.2 ± 196.3 (109)

150 (60, 300) (182)

130 (60, 279) (127)

−15.8 ± 214.8 (127)

+27.0 (−26.1 - 80.1), p = 0 . 32

 

PP

-

180 (90, 300) (87)

230 (120, 330) (165)

+11.5 ± 195.5 (71)

150 (40, 300) (272)

130 (60, 277) (72)

−9.7 ± 211.3 (165)

+21.3 (−36.5 -79.1), p = 0 . 47

Intention to breastfeed (Median; IQR)

ITT

p= 0.30

14 (10,16) (172)

15 (12.5, 16) (118)

0.8 ± 3.1 (99)

13.5 (10, 15.5) (168)

15 (12,16) (105)

0.9 ± 2.3 (114)

−0.06 (−0.8 - 0.7), p = 0.88

 

PP

-

14.8 (12,16) (82)

15.5 (13,16) (69)

0.7 ± 2.8 (65)

13.5 (10, 15.5) (258)

14.7 (11.5, 16) (154)

0.9 ± 2.7 (148)

−0.3 ( −1.1 - 0.5), p = 0.43

  1. * significant difference between groups over time; Differences were examined with independent group t-tests (for normally distributed variables) and Mann U Whitney tests (for baseline non-parametric variables).
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