Table 2

Results of binary logistic regression predicting parent's interest (i.e. showed their interest in intervention by positive response on reply card) and participation (i.e. completed online assessment) in a physical activity intervention delivered through the Internet

MODEL 1

Showing interest a (all groups, n = 2637)

participation b (interested, n = 300)



n

n interested (%)

adjusted OR

95% CI

P

n

n participated (%)

adjusted OR

95% CI

P



Gender

male

1427

128 (9.0)

1.00c

128

48 (37.5)

1.00c

female

1210

172 (14.2)

1.68

1.31–2.16

<0.001

172

101 (58.7)

2.27

1.39–3.70

0.001

SES

low

879

47 (5.3)

1.00c

47

14 (29.8)

1.00c

medium

1489

213 (14.3)

2.87

2.07–3.99

<0.001

213

121 (56.8)

3.17

1.58–6.34

0.001

high

269

40 (14.9)

3.42

2.18–5.37

<0.001

40

14 (35.0)

1.65

0.65–4.19

0.293

PA

not-active

1908

216 (11.3)

1.00c

216

106 (49.1)

1.00c

active

729

84 (11.5)

0.93

0.71–1.22

0.584

84

43 (51.2)

0.92

0.54–1.57

0.766


MODEL 2

Showing interest a (all groups, n = 2976)

participation b (interested, n = 317)



n

n interested (%)

adjusted OR

95% CI

P

n

n participated (%)

adjusted OR

95% CI

P



Gender

male

1452

128 (8.8)

1.00c

128

48 (37.5)

1.00c

female

1524

189 (12.4)

1.70

1.34–2.17

<0.001

189

112 (59.3)

2.38

1.49–3.80

<0.001

Employed

no

339

17 (5.0)

1.00c

17

11 (64.7)

1.00c

0.53–1.46

0.626

yes

2637

300 (11.4)

3.03

1.81–5.06

<0.001

300

149 (49.7)

0.88

PA

not-active

2204

229 (10.4)

1.00c

229

114 (49.8)

1.00c

active

772

88 (11.4)

0.94

0.72–1.22

0.630

88

46 (52.3)

0.77

0.27–2.19

0.619


Note:

a including group 1, 2, 3, 4, 5

b excluding group 4&5

c Reference group

CI = confidence interval; PA = Physical activity; SES = Socio-economic status (based on occupation); adjusted OR = odds ratio adjusted for gender, SES/employment and physical activity; CI = confidence interval; PA = Physical activity

Spittaels and De Bourdeaudhuij International Journal of Behavioral Nutrition and Physical Activity 2007 4:39   doi:10.1186/1479-5868-4-39

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