Open Access Highly Accessed Research article

Are behavioral interventions effective in increasing physical activity at 12 to 36 months in adults aged 55 to 70 years? a systematic review and meta-analysis

Nicola Hobbs1*, Alan Godfrey2, Jose Lara3, Linda Errington4, Thomas D Meyer5, Lynn Rochester2, Martin White16, John C Mathers3 and Falko F Sniehotta16

Author Affiliations

1 Institute of Health & Society, Newcastle University, Baddiley-Clark Building, Richardson Road, Newcastle upon Tyne, NE2 4AX, UK

2 Clinical Ageing Research Unit, Newcastle University, Campus for Ageing and Vitality, Newcastle upon Tyne, NE4 5PL, UK

3 Human Nutrition Research Centre, Institute for Ageing and Health, Newcastle University, Biomedical Research Building, Campus for Ageing and Vitality, Newcastle upon Tyne, UK

4 Walton Library, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK

5 Institute of Neuroscience, Newcastle University, Ridley Building, Newcastle upon Tyne, NE1 7RU, UK

6 Fuse, UKCRC Centre for Translational Research in Public Health, Institute of Health & Society, Newcastle University, Baddiley-Clark Building, Richardson Road, Newcastle upon Tyne, NE2 4AX, UK

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BMC Medicine 2013, 11:75  doi:10.1186/1741-7015-11-75

Published: 19 March 2013

Additional files

Additional file 1:

Registered systematic review protocol. On inception of this systematic review, the protocol was registered with the National Institute of Health Research International Prospective Register of Systematic Reviews, PROSPERO: CRD42011001459.

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Additional file 2:

OVID Medline search strategy. Search terms and search strategy used to search for records in the OVID Medline electronic database.

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Additional file 3:

Table of characteristics of included trials in alphabetical order by author. Characteristics of the trials included in this review, including information on the study population, setting, physical activity outcome measures, assessment times, sample size in each intervention arm, content and delivery of intervention, and attrition rates.

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Additional file 4:

Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2009 checklist. Completed PRISMA 2009 checklist detailing the page of the manuscript on which each checklist item is reported.

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Additional file 5:

Cochrane risk of bias figure. Risk of bias present in the trials included in this review based on the Cochrane risk of bias tool. Judgements about each risk of bias item are presented as percentages across the 21 included trials. The green bars represent the percentage of trials rated as high quality (low risk of bias) on each item, the yellow bars represent the percentage of trials where judgements could not be made (unclear risk of bias) on each item, and the red bars represent the percentage of trials rated as poor quality (high risk of bias) on each item.

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Additional file 6:

Funnel plots and Egger's test results assessing publication bias in the meta-analyses. Funnel plots and Egger's tests were used to identify the presence of publication bias in the meta-analyses. Publication bias could be tested for in the meta-analysis of trials reporting pedometer step-counts (steps/day) at 12 months; duration of physical activity at 12 months - continuous outcome measures; and duration of physical activity at 24 months - continuous outcome measures.

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