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Table 1 Study characteristics

From: Systematic review and meta analysis of differential attrition between active and control arms in randomized controlled trials of lifestyle interventions in chronic disease

Paper Condition Country Length of treatment (months) Type of Intervention Length to initial follow-up (months) Length to final follow-up (months) Control
Khunti et al., 2012 [12] Type 2 Diabetes UK 0 Diet and Physical activity 36 36 Usual care
Hesselink et al., 2004 [13] Asthma and COPD Netherlands Unclear Counselling 12 24 Usual care
Andrews et al., 2011 [14] Type 2 Diabetes UK 12 Diet 6 12 Usual care
Clark et al., 2004 [15] Type 2 Diabetes UK 12 Diet 3 12 Usual care
Jonsdottir et al., 2015 [16] COPD Iceland 6 Smoking Cessation 6 12 Usual care
Lee et al., 2015 [17] Type 2 Diabetes Taiwan 3 Physical activity 3 12 Usual care
Meyer et al., 2015 [18] Asthma Germany 12 Physical activity 12 12 Usual care
Nicolucci et al., 2012 [19] Type 2 Diabetes Italy 3 Physical activity 12 12 Usual care
Walters et al., 2013 [20] COPD Australia 12 Smoking Cessation 6 12 Usual care
Wilson et al., 2008 [21] COPD UK 0 Counselling 12 12 Usual care
Barrera et al., 2006 [22] Type 2 Diabetes USA 6 Diet, physical activity, stress management 6 6 Usual care
Hilbernik et al., 2005 [23] COPD Netherlands 0 Smoking Cessation 6 6 Usual care
Nam et al., 2012 [24] Type 2 Diabetes USA 6 Physical activity 6 6 Usual care
Cheskin et al., 2008 [25] Type 2 Diabetes USA 8 Diet 20 20 Active control
Larsen, et al., 2011 [26] Type 2 Diabetes Australia 12 Diet 12 12 Active control
Praet et al., 2008 [27] Type 2 Diabetes Netherlands 12 Physical activity 12 12 Active control
Racine et al., 2011 [28] Cardiovascular disease USA 12 Diet 6 12 Active control
Callisaya et al., 2017 [29] Type 2 Diabetes Australia 6 Physical activity 6 6 Active control
Glasgow et al., 2000 [30] Type 2 Diabetes USA 6 Diet + Telephone support 3 6 Active control
Ng et al., 2011 [31] COPD Hong Kong 6 Physical activity 6 6 Active control
Sevick et al., 2012 [32] Type 2 Diabetes USA 6 Counselling 3 6 Active control
Yamada et al., 2014 [33] Type 2 Diabetes Japan 6 Diet 6 6 Active control
John et al., 2012 [34] Rheumatoid arthritis UK 1.8 CBT 6 6 Wait-list
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BMC Medical Research Methodology

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