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Table 3 Quality assessments and methodological parameters for synthesised studies

From: Socioeconomic gradients in the effects of universal school-based health behaviour interventions: a systematic review of intervention studies

Study name

Main reference

Study quality

Sample size (school or class/individual)

Retention (numbers analysed) (school or class/individual)

Length of intervention

Length of follow-up

Intervention

Control

Intervention

Control

AFLY5

Kipping et al. 2014

Moderate

30/1064

30/1157

30/1024

30/1097

7-11 months

Immediate post-intervention / 1 year

ASSIST

Campbell et al. 2008

Moderate

30/5187

29/5074

30/5058/5044/4966 (post intervention/1 year/2 year)

29/4753/4865/4700

4 months

Immediate post-intervention/ 1 year / 2 years

School fruit scheme

Bere et al. 2010

Weak

27/1488 (total N. Natural experiment - baseline survey prior to adoption or non-adoption)

27/1339 followed up (10 had adopted subscription, 5 free and 12 none)

Unclear

7 years after baseline survey

Crone et al. 2011

Crone et al. 2011

Weak

62/1756

59/1417

62/1010

59/805

2 academic years

Immediate post-intervention / 1 year

EHealth4us

Bannink et al. 2014

Moderate

20/533

20/615

20 / 392

20 / 434

1 month

4 months

20/554 (2 arms)

 

20/430

   

Energize

Rush et al. 2012

Weak

62

62

62/692

62/660

Variable (at least 18 months)

2 years

ESFA

Ariza et al. 2008

Moderate

16/1083

37/886

13/690

37/603

3 years

Immediate post-intervention

EUDap

Faggiano et al. 2010

Moderate

78 (26/27/25)/1190/1164/1193

65/3532

26/27/24/6 months:1084/1068/1044

64/ 6 months: 3174 18 months: 2730

4 months

6 months/ 18 months

(basic arm/parent arm/ peer arm)

 

18 months: 956/972/883

   

FatAintPhat

Ezendam et al. 2012

Moderate

11/485

11/145/385/395 (shuttle run/behaviour/anthropometry)

9/398

9/282/333/340

10 weeks

4 months/ 2 years

HEIA

Grydeland et al. 2012

Moderate

12/553

25/975

12/8 months: 541/20 months: 519

25/8 months: 970/20 months: 945

20 months

8 months/ 20 months

KOPS

Plachta-Danielzik 2011

Weak

14/780

32/4217

14/4 years:345/8 years: 239

32/4 years:1419/8 years:950

2-3 weeks

4 years/ 8 years

Avall

Llargues et al. 2011

Weak

8/272

8/237

8/not specified

8/not specified

2 years

Immediate post-intervention

STOPP

Marcus et al.

Moderate

5/1670

5/1465

5/1538

5/1430

1-4 years (mean: 613 days)

Immediate post-intervention

MYTRI

Perry et al. 2009

Moderate

16/6365

16/7698

16/3626

16/4321

2 academic years

Immediate post-intervention

PAS

Koning et al. 2009

Moderate

5/689

4/779

5/5/5/10-22 months: 608/675/588/ 34 months: 603/671/582/ 4 years: 254/291/193

4/10-22 months: 699/ 34 months: 677/ 4 years: 326

1 year

10 months/ 22 months/34 months/ 4 years

5/771

 

5/698

 

(3 arms)

 

Promise

Stallard et al. 2012

Weak

10/1753

9/1604

10/308

9 /242

1 academic year

12 months

9/1673 (active intervention/attention control) High risk subsample: 392/374

298

9/296 (only high risk followed up)

PSFBI

Murphy et al. 2011

Moderate

55/2205

56/2145

55/2272

56/2200

12 months

Immediate post-intervention

Smart Lunchbox

Evans et al. 2010

Moderate

44/577

44/671

40/432

43/539

5 months

12 months

SPACE

Toftager et al. 2014

Weak

7/612

7/699

7/515

7/545

2 years

Immediate post- intervention

Pro Children

Te Velde et al. 2008

Moderate

32/990

30/811

32/798

30/674

9 months

Immediate post-intervention