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Table 2 Changes in pre and post course questionnaire scores for all participants, using paired t-test

From: The well now course: a service evaluation of a health gain approach to weight management

Measure

Number (%) of Participants

Difference in Score (Pre vs. Post)

p-value1

Effect size2

Mean

Lower CI (95%)

Upper CI (95%)

WEMWBS

301 (56)

5.85

4.86

6.83

< 0.01

0.68

Well Now - diet quality

290 (54)

3.40

2.81

4.0

< 0.01

0.66

Physical activity

282 (53)

1.01

0.76

1.26

< 0.01

0.47

Pre-occupation with food - frequency of thoughts

254 (47)

−0.70

−1.08

−0.31

< 0.01

− 0.22

Pre-occupation with food - positive thoughts

254 (47)

1.16

0.27

2.05

< 0.01

0.16

Pre-occupation with food - negative thoughts

254 (47)

−2.48

−3.34

−1.62

< 0.01

−0.36

  1. 1 < 0.01 = significantly different at 1% level, 2 = Cohen’s d ranges (0.2- small, 0.5 – medium, 0.8 – large)