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Table 4 Characteristics of participants who were included in the overall analysis compared with those who were excluded

From: Randomised feasibility trial of a teaching assistant led extracurricular physical activity intervention for 9 to 11 year olds: Action 3:30

 

Included

Excluded

Difference

Overall

n

Mean

SD

n

Mean

SD

Mean

95% CI

p

BMI SDS*

310

0.58

1.2

229

0.57

1.2

-0.008

-0.21 to 0.19

0.9390

Age (yrs)

310

10.0

0.55

229

10.1

0.59

0.14

0.05 to 0.24

0.0037

IMD**

310

18.9

17.3

215

23.2

17.2

4.3

1.3 to 7.3

0.0055

Control

         

BMI SDS

157

0.52

1.2

98

0.19

1.3

-0.02

-0.33 to 0.28

0.8853

Age (yrs)

157

10.0

0.53

98

10.1

0.57

0.14

0.00 to 0.28

0.0495

IMD

157

16.9

16.1

91

24.8

17.5

7.9

3.6 to 12.2

0.0004

Intervention

         

BMI SDS

153

0.64

1.1

131

0.62

1.2

-0.01

-0.29 to 0.26

0.9209

Age (yrs)

153

10.0

0.57

131

10.1

0.60

0.15

0.010 to 0.28

0.0357

IMD

153

21.0

18.4

124

22.0

17.0

1.0

-3.2 to 5.2

0.6376

  1. *BMI SDS: Age and sex standardised BMI (BMI z score).
  2. **IMD: Index of multiple deprivation score.