Grey Literature in Meta-Analyses

Conn, Vicki S.; Valentine, Jeffrey C.; Cooper, Harris; Rantz, Marilyn

doi:10.1097/00006199-200307000-00008

Cited by 329 publications

(255 citation statements)

References 31 publications

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“…Funnel plots suggested potential publication bias. It remains unclear whether investigators do not attempt to publish or are unable to publish findings from studies without statistically significant intervention effects [37]. We expected the findings of considerable heterogeneity.…”

Section: Discussionmentioning

confidence: 96%

Meta-analysis of patient education interventions to increase physical activity among chronically ill adults

Conn

Hafdahl²,

Brown

et al. 2008

Patient Education and Counseling

Self Cite

231

177

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Objective-This meta-analysis integrates primary research testing the effect of patient education to increase physical activity (PA) on behavior outcomes among adults with diverse chronic illnesses.Methods-Extensive literature searching strategies located published and unpublished intervention studies that measured PA behavior outcomes. Primary study results were coded. Fixed-and randomeffects meta-analytic procedures included moderator analyses.Results-Data were synthesized across 22,527 subjects from 213 samples in 163 reports. The overall mean weighted effect size for two-group comparisons was 0.45 (higher mean for treatment than control). This effect size is consistent with a difference of 48 minutes of PA per week or 945 steps per day. Preliminary moderator analyses suggest interventions were most effective when they targeted only PA behavior, used behavioral strategies (vs. cognitive strategies), and encouraged PA self-monitoring. Differences among chronic illnesses were documented. Individual strategies unrelated to PA outcomes included supervised exercise sessions, exercise prescription, fitness testing, goal setting, contracting, problem solving, barriers management, and stimulus/cues. PA outcomes were unrelated to gender, age, ethnicity, or socioeconomic distribution among samples.Conclusion-These findings suggest that some patient education interventions to increase PA are effective, despite considerable heterogeneity in the magnitude of intervention effect.Practice Implications-Moderator analyses are preliminary and provide suggestive evidence for further testing of interventions to inform practice.

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Section: Discussionmentioning

confidence: 96%

Meta-analysis of patient education interventions to increase physical activity among chronically ill adults

Conn

Hafdahl²,

Brown

et al. 2008

Patient Education and Counseling

Self Cite

231

177

View full text Add to dashboard Cite

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“…These databases contain articles in languages other than English but not grey literature 5 ; some country experiences might have been missed by restricting the search to peerreviewed journals.…”

Section: Methodsmentioning

confidence: 99%

A Systematic Review of the Effectiveness of Hospital- and Ambulatory-Based Management of Multidrug-Resistant Tuberculosis

Bassili¹,

Fitzpatrick²,

Qadeer³

et al. 2013

The American Society of Tropical Medicine and Hygiene

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Abstract. A systematic review of the literature was conducted on the effectiveness of MDR-TB management. A metaanalysis of treatment outcomes of patients treated in hospitals versus ambulatory-based models was performed in accordance with PRISMA guidelines. The pooled treatment success rate was 66.4% (95% confidence interval [CI] 61.4-71.1%), with no statistical difference between ambulatory (65.5%; 55.1-74.6%) and hospital-based models (66.7%; 61.0-72.0%). The pooled death rate was 10.4% (6.3-16.5%), the pooled treatment failure rate was 9.5% (7.3-12.4%), and the defaulter rate was 14.3% (10.5-19.1%). None of the differences between the two models were statistically significant for any of the outcomes considered. This work improves the quality of the evidence available supporting the World Health Organizations (WHO) recommendation that patients be treated using mainly ambulatory care, conditional on infection control measures in the home and clinic, clinical condition of the patient, availability of treatment support to facilitate adherence to treatment, and provisions for backup facility to manage patients who need inpatient treatment care. BACKGROUND

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“…Grey literature has often come under scrutiny among some academics, suggesting that the lack of peer review could reduce the rigor and validity of research. However, research has shown that although published research is more likely to contain results from larger samples, methodological rigor does not appear to differ between published and grey literature (Conn et al, 2015).…”

Section: Methodsmentioning

confidence: 99%

Stranded Assets: A Climate Risk Challenge

Caldecott¹,

Harnett²,

Cojoianu³

et al. 2016

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Commons IGO 3.0 Attribution-NonCommercial-NoDerivatives (CC-IGO BY-NC-ND 3.0 IGO) license (http://creativecommons.org/licenses/by-nc-nd/3.0/igo/legalcode) and may be reproduced with attribution to the IDB and for any non-commercial purpose. No derivative work is allowed. Any dispute related to the use of the works of the IDB that cannot be settled amicably shall be submitted to arbitration pursuant to the UNCITRAL rules. The use of the IDB's name for any purpose other than for attribution, and the use of IDB's logo shall be subject to a separate written license agreement between the IDB and the user and is not authorized as part of this CC-IGO license.

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Grey Literature in Meta-Analyses

Cited by 329 publications

References 31 publications

Meta-analysis of patient education interventions to increase physical activity among chronically ill adults

Meta-analysis of patient education interventions to increase physical activity among chronically ill adults

A Systematic Review of the Effectiveness of Hospital- and Ambulatory-Based Management of Multidrug-Resistant Tuberculosis

Stranded Assets: A Climate Risk Challenge

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