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Table 3 Percentage of randomized participants per trial arm providing overall accelerometer data at Time 0, 1 and 2

From: Bristol Girls Dance Project Feasibility Trial: outcome and process evaluation results

  

Intervention

Control

Control

Total

(incentives)

(incentives + workshop)

  

N

%

95% CI

N

%

95% CI

N

%

95% CI

N

%

95% CI

Time 0

Valid

87

96.7

0.93 to 1.00

60

100.0

-

56

93.3

0.87 to .99

203

96.7

0.94 to 0.99

Invalid

3

3.3

0.00 to 0.07

0

0

-

4

6.7

0.00 to 0.13

7

3.3

0.01 to 0.06

Missing

0

0

-

0

0

-

0

0

-

0

0

-

Time 1

Valid

72

80.0

0.72 to 0.88

56

93.3

0.87 to 1.00

53

88.3

0.80 to 0.97

181

86.2

0.82 to 0.91

Invalid

10

11.1

0.05 to 0.18

1

1.6

0.02 to 0.05

5

8.3

0.01 to 0.16

16

7.6

0.04 to 0.11

Missing

8

8.9

0.03 to 0.15

3

5.0

0.01 to 0.11

2

3.3

0.01 to 0.08

13

6.2

0.03 to 0.09

Time 2

Valid

61

67.8

0.58 to 0.78

55

91.7

0.84 to 0.99

46

76.7

0.66 to 0.88

162

77.1

0.71 to 0.83

Invalid

11

12.2

0.05 to 0.19

3

5.0

0.00 to 0.99

3

5.0

0.01 to 0.11

17

8.1

0.04 to 0.12

Missing

18

20.0

0.12 to 0.28

2

3.3

0.01 to 0.08

11

18.3

0.08 to 0.28

31

14.7

0.10 to 0.20

  1. Valid = participant’s accelerometer data met the wear time criteria.
  2. Invalid = participant’s accelerometer data did not meet the wear time criteria.
  3. Missing = participant did not provide accelerometer data.