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Table 2 Differences between groups at follow-up, with adjustment for baseline score

From: Effectiveness of a school-community linked program on physical activity levels and health-related quality of life for adolescent girls

Variable

Group

n

p-value

Group mean difference#

Group^

n

p-value

Group mean differences#

    

G1 - G2

   

G1 - G2

G1 - G3

G2 - G3

Health

          

PedsQL – physical functioning

1. Intervention

340

0.005*

+3.0

1. Completers

90

0.021*

  

+3.1

2. Control

243

  

2. Non-completers

250

    
    

3. Control

243

    

PedsQL – psycho-social functioning

1. Intervention

337

0.001*

+3.8

1. Completers

89

0.003*

  

+4.3

2. Control

242

  

2. Non-completers

248

    
    

3. Control

242

    

PedsQL total score

1. Intervention

338

0.001*

+3.5

1. Completers

89

0.002*

  

+3.9

2. Control

243

  

2. Non-completers

249

    
    

3. Control

243

    

Physical activity

         

 PDPAR-24: MET-mins of LTMVPA

1. Intervention

136

0.241

 

1. Completers

25

0.293

   

2. Control

107

  

2. Non-completers

111

    
    

3. Control

107

    

 PDPAR-24: Mins of LTMVPA

1. Intervention

136

0.555

 

1. Completers

25

0.419

   

2. Control

107

  

2. Non-completers

111

    
    

3. Control

107

    

Days out of past seven with at least 60 min LTMVPA

1. Intervention

351

0.132

 

1. Completers

89

0.152

   

2. Control

255

  

2. Non-completers

262

    
    

3. Control

255

    

Potential mediators

         

Perceived sports competence

1. Intervention

338

0.865

 

1. Completers

85

0.922

   

2. Control

257

  

2. Non-completers

253

    
    

3. Control

257

    

Self-management strategies

1. Intervention

333

0.568

 

1. Completers

82

0.010*

+0.25

  

2. Control

246

  

2. Non-completers

251

    
    

3. Control

246

    

Perceived behavioral control

1. Intervention

354

0.704

 

1. Completers

87

0.034*

+0.27

+0.18

 

2. Control

255

  

2. Non-completers

267

    
    

3. Control

255

    

Outcome expectation

1. Intervention

340

0.654

 

1. Completers

84

0.328

   

2. Control

251

  

2. Non-completers

256

    
    

3. Control

251

    

Outcome expectancy-value

1. Intervention

323

0.213

 

1. Completers

80

0.008*

+17.4

+18.4

 

2. Control

192

  

2. Non-completers

243

    
    

3. Control

192

    

Self-efficacy

1. Intervention

321

0.502

 

1. Completers

78

0.006*

+0.28

+0.25

 

2.Control

232

  

2. Non-completers

243

    
    

3. Control

232

    

PA Enjoyment

1. Intervention

338

0.648

 

1. Completers

84

0.208

   

2. Control

245

  

2. Non-completers

254

    
    

3. Control

245

    

Sedentary enjoyment

1. Intervention

332

0.195

 

1. Completers

83

0.104

   

2. Control

241

  

2. Non-completers

249

    
    

3. Control

241

    

Personal barriers

1. Intervention

320

0.018*

−0.13

1. Completers

83

0.004*

+0.19

 

−0.18

2. Control

239

  

2. Non-completers

237

    
    

3. Control

239

    

Organisation barriers

1. Intervention

320

0.909

 

1. Completers

83

0.113

   

2. Control

241

  

2. Non-completers

247

    
    

3. Control

241

    

Family support

1. Intervention

338

0.122

 

1. Completers

89

0.017*

+0.22

+.26

 

2. Control

240

  

2. Non-completers

249

    
    

3. Control

240

    

Friends support

1. Intervention

340

0.345

 

1. Completers

90

0.048*

+0.22

  

2. Control

236

  

2. Non-completers

250

    
    

3. Control

238

    
  1. #Significant differences between group mean scores (G) *p < 0.05.
  2. ^Completers = school component + community component; Non-completers = school component only.
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