Table 3 Determinants of energy balance-related behaviours at baseline and post-intervention among boys from intervention and control schools, means (SD)

screen-viewing behaviour

- attitude

201

-0.7 (1.8)

-0.5 (2.0)

189

-0.6 (1.6)

-0.6 (1.5)

- subjective norm

198

-3.4 (3.3)

-3.3 (3.7)

190

-3.3 (3.2)

-3.1 (3.4)

- perceived control

192

-0.6 (5.1)

-0.3 (4.8)

189

-1.2 (4.8)

-0.5 (4.7)

- habit

205

1.0 (2.9)

0.5 (2.9)

194

1.2 (2.7)

1.0 (2.8)

active transport to school

- attitude

192

2.8 (2.5)

2.6 (2.7)

186

2.4 (2.5)

2.0 (2.6)

- subjective norm

203

-3.3 (3.2)

-2.2 (3.7)

189

-3.1 (3.2)

-3.0 (3.3)

- perceived control

200

2.7 (3.8)

2.5 (3.8)

190

3.2 (3.7)

2.7 (3.9)

- habit

203

2.2 (2.5)

1.9 (2.6)

191

2.2 (2.3)

2.0 (2.4)

- perceived environment

202

-0.03 (1.7)

0.2 (1.5)

197

0.2 (1.5)

0.1 (1.5)

sugar-containing beverage consumption

- attitude

171

0.6 (1.8)

0.7 (2.3)

181

0.7 (2.2)

0.2 (2.5)

- subjective norm

163

-3.8 (2.8)

-3.6 (3.4)

167

-3.7 (3.3)

-4.0 (3.2)

- perceived control

173

2.3 (4.2)

1.7 (4.4)

182

1.8 (4.5)

1.2 (4.5)

- habit

177

0.2 (2.7)

0.1 (3.0)

180

0.6 (2.8)

1.0 (2.9)

high caloric snack consumption

- attitude

202

0.8 (2.4)

1.1 (2.6)

188

1.2 (2.5)

1.1 (2.3)

- subjective norm

198

-3.3 (3.3)

-2.2 (3.3)

190

-2.8 (3.4)

-2.8 (3.2)

- perceived control

203

1.8 (4.3)

2.0 (4.0)

197

1.7 (3.8)

1.8 (3.5)

- habit

205

-0.3 (2.6)

-0.5 (2.5)

196

-0.4 (2.6)

-0.4 (2.5)