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Systematic Reviews

Ausgabe 1/2013

Inhalt (116 Artikel)

Open Access Research

PROSPERO at one year: an evaluation of its utility

Alison Booth, Mike Clarke, Gordon Dooley, Davina Ghersi, David Moher, Mark Petticrew, Lesley Stewart

Open Access Research

Psychosocial interventions to reduce alcohol consumption in concurrent problem alcohol and illicit drug users: Cochrane Reviewa

Jan Klimas, Catherine-Anne Field, Walter Cullen, Clodagh SM O’Gorman, Liam G Glynn, Eamon Keenan, Jean Saunders, Gerard Bury, Colum Dunne

Open Access Protocol

Mobile phone text messaging for promoting adherence to anti-tuberculosis treatment: a systematic review protocol

Mweete D Nglazi, Linda-Gail Bekker, Robin Wood, Gregory D Hussey, Charles S Wiysonge

Open Access Methodology

Individual patient data meta-analysis of beta-blockers in heart failure: rationale and design

Dipak Kotecha, Luis Manzano, Douglas G Altman, Henry Krum, Guliz Erdem, Nicola Williams, Marcus D Flather

Open Access Protocol

Individual patient data meta-analysis for the clinical assessment of coronary computed tomography angiography: protocol of the Collaborative Meta-Analysis of Cardiac CT (CoMe-CCT)

Georg M Schuetz, Peter Schlattmann, Stephan Achenbach, Matthew Budoff, Mario J Garcia, Robert Roehle, Gianluca Pontone, Willem Bob Meijboom, Daniele Andreini, Hatem Alkadhi, Lily Honoris, Nuno Bettencourt, Jörg Hausleiter, Sebastian Leschka, Bernhard L Gerber, Matthijs FL Meijs, Abbas Arjmand Shabestari, Akira Sato, Elke Zimmermann, Uwe J Schoepf, Axel Diederichsen, David A Halon, Vladimir Mendoza-Rodriguez, Ashraf Hamdan, Bjarne L Nørgaard, Harald Brodoefel, Kristian A Øvrehus, Shona MM Jenkins, Bjørn A Halvorsen, Johannes Rixe, Mehraj Sheikh, Christoph Langer, Eugenio Martuscelli, Andrea Romagnoli, Arthur JHA Scholte, Roy P Marcus, Geir R Ulimoen, Koen Nieman, Hans Mickley, Konstantin Nikolaou, Jean-Claude Tardif, Thorsten RC Johnson, Simone Muraglia, Benjamin JW Chow, David Maintz, Michael Laule, Marc Dewey

Open Access Protocol

Protocol for a systematic review on the extent of non-publication of research studies and associated study characteristics

Susan Portalupi, Erik von Elm, Christine Schmucker, Britta Lang, Edith Motschall, Guido Schwarzer, Isabel T Gross, Roberta W Scherer, Dirk Bassler, Joerg J Meerpohl

Open Access Research

Survival of patients with non-small cell lung cancer without treatment: a systematic review and meta-analysis

Hesborn Wao, Rahul Mhaskar, Ambuj Kumar, Branko Miladinovic, Benjamin Djulbegovic

Open Access Research

Automated dose dispensing service for primary healthcare patients: a systematic review

Juha Sinnemäki, Sinikka Sihvo, Jaana Isojärvi, Marja Blom, Marja Airaksinen, Antti Mäntylä

Open Access Protocol

Impact of quality improvement strategies on the quality of life and well-being of individuals with spinal cord injury: a systematic review protocol

Sarah EP Munce, Laure Perrier, Andrea C Tricco, Sharon E Straus, Michael G Fehlings, Monika Kastner, Eunice Jang, Fiona Webster, Susan B Jaglal

Open Access Protocol

A protocol for a systematic review of birth preparedness and complication readiness programs

Andrea Solnes Miltenburg, Yadira Roggeveen, Marianne van Elteren, Laura Shields, Joske Bunders, Jos van Roosmalen, Jelle Stekelenburg

Open Access Protocol

The effectiveness and cost-effectiveness of shared care: protocol for a realist review

Rebecca Hardwick, Mark Pearson, Richard Byng, Rob Anderson

Open Access Research

Male involvement in prevention programs of mother to child transmission of HIV: a systematic review to identify barriers and facilitators

Frederick Morfaw, Lawrence Mbuagbaw, Lehana Thabane, Clarissa Rodrigues, Ana-Paula Wunderlich, Philip Nana, John Kunda

Open Access Protocol

Protocol for a systematic review of the diagnostic and prognostic utility of tests currently available for the detection of aspirin resistance in patients with established cardiovascular or cerebrovascular disease

Smriti Raichand, David Moore, Richard D Riley, Marie Lordkipanidzé, Janine Dretzke, Jennifer O’Donnell, Sue Jowett, Sue Bayliss, David A Fitzmaurice

Open Access Protocol

Systematic review and network meta-analysis of interventions for fibromyalgia: a protocol

Jason W Busse, Shanil Ebrahim, Gaelan Connell, Eric A Coomes, Paul Bruno, Keshena Malik, David Torrance, Trung Ngo, Karin Kirmayr, Daniel Avrahami, John J Riva, Peter Struijs, David Brunarski, Stephen J Burnie, Frances LeBlanc, Ivan A Steenstra, Quenby Mahood, Kristian Thorlund, Victor M Montori, Vishalini Sivarajah, Paul Alexander, Milosz Jankowski, Wiktoria Lesniak, Markus Faulhaber, Małgorzata M Bała, Stefan Schandelmaier, Gordon H Guyatt

Open Access Protocol

Association between caregiver quality of life and the care provided to persons with Alzheimer’s disease: protocol for a systematic review

Afeez Abiola Hazzan, Jenny Ploeg, Harry Shannon, Parminder Raina, Mark Oremus

Open Access Protocol

Lipophilic versus hydrophilic statin therapy for heart failure: a protocol for an adjusted indirect comparison meta-analysis

Kwadwo Osei Bonsu, Amudha Kadirvelu, Daniel Diamond Reidpath

Open Access Protocol

Publication bias in animal research: a systematic review protocol

Matthias Briel, Katharina F Müller, Joerg J Meerpohl, Erik von Elm, Britta Lang, Edith Motschall, Viktoria Gloy, Francois Lamontagne, Guido Schwarzer, Dirk Bassler

Open Access Protocol

Risk of heart failure and edema associated with the use of pregabalin: a systematic review

Joanne M Ho, Andrea C Tricco, Laure Perrier, Maggie Chen, David N Juurlink, Sharon E Straus

Open Access Protocol

Examining health promotion interventions for patients with chronic conditions using a novel patient-centered complexity model: protocol for a systematic review and meta-analysis

Amy E Bodde, Nathan D Shippee, Carl R May, Frances S Mair, Patricia J Erwin, M Hassan Murad, Victor M Montori

Open Access Research

Environmental interventions to reduce fear of crime: systematic review of effectiveness

Theo Lorenc, Mark Petticrew, Margaret Whitehead, David Neary, Stephen Clayton, Kath Wright, Hilary Thomson, Steven Cummins, Amanda Sowden, Adrian Renton

Open Access Research

Systematic review and stratified meta-analysis of the efficacy of RhoA and Rho kinase inhibitors in animal models of ischaemic stroke

Hanna M Vesterinen, Gillian L Currie, Samantha Carter, Sarah Mee, Ralf Watzlawick, Kieren J Egan, Malcolm R Macleod, Emily S Sena

Open Access Research

Improving quality of care for persons with diabetes: an overview of systematic reviews - what does the evidence tell us?

Julia Worswick, S Carolyn Wayne, Rachel Bennett, Michelle Fiander, Alain Mayhew, Michelle C Weir, Katrina J Sullivan, Jeremy M Grimshaw

Open Access Protocol

Defining publication bias: protocol for a systematic review of highly cited articles and proposal for a new framework

Katharina Felicitas Müller, Matthias Briel, Alexandra D’Amario, Jos Kleijnen, Ana Marusic, Elizabeth Wager, Gerd Antes, Erik von Elm, Britta Lang, Edith Motschall, Viktoria Gloy, Guido Schwarzer, Doug Altman, Joerg J Meerpohl, Dirk Bassler

Open Access Research

Are systematic reviews up-to-date at the time of publication?

Elaine M Beller, Joyce Kee-Hsin Chen, Una Li-Hsiang Wang, Paul P Glasziou

Open Access Protocol

Clinical risk factors for late intestinal toxicity after radiotherapy: a systematic review protocol

Qiyuan Qin, Qingshan Huang, Qinghua Zhong, Xinjuan Fan, Dianke Chen, Lei Wang

Open Access Research

Screening for cervical cancer: a systematic review and meta-analysis

Leslea Peirson, Donna Fitzpatrick-Lewis, Donna Ciliska, Rachel Warren

Open Access Protocol

Efficacy of falls prevention interventions: protocol for a systematic review and network meta-analysis

Andrea C Tricco, Elise Cogo, Jayna Holroyd-Leduc, Kathryn M Sibley, Fabio Feldman, Gillian Kerr, Sumit R Majumdar, Susan Jaglal, Sharon E Straus

Open Access Research

Strategies for obtaining unpublished drug trial data: a qualitative interview study

Nicole Wolfe, Peter C Gøtzsche, Lisa Bero

Open Access Protocol

A comparative assessment of three formulations of botulinum toxin A for facial rhytides: a systematic review and meta-analyses

James P Bonaparte, David Ellis, Jason G Quinn, Mohammed T Ansari, Jessica Rabski, Shaun J Kilty

Open Access Protocol

A protocol for a systematic review on the impact of unpublished studies and studies published in the gray literature in meta-analyses

Christine Schmucker, Annette Bluemle, Matthias Briel, Susan Portalupi, Britta Lang, Edith Motschall, Guido Schwarzer, Dirk Bassler, Katharina F Mueller, Erik von Elm, Joerg J Meerpohl

Open Access Protocol

Protocol for systematic reviews of determinants/correlates of obesity-related dietary and physical activity behaviors in young children (preschool 0 to 6 years): evidence mapping and syntheses

Rajalakshmi Lakshman, Veena Mazarello Paes, Kathryn Hesketh, Claire O’Malley, Helen Moore, Ken Ong, Simon Griffin, Esther van Sluijs, Carolyn Summerbell

Open Access Protocol

Systematic review of the effectiveness of training programs in writing for scholarly publication, journal editing, and manuscript peer review (protocol)

James Galipeau, David Moher, Becky Skidmore, Craig Campbell, Paul Hendry, D William Cameron, Paul C Hébert, Anita Palepu

Open Access Protocol

Hysterosalpingosonography for diagnosing tubal occlusion in subfertile women: a systematic review protocol

Sarah Maheux-Lacroix, Amélie Boutin, Lynne Moore, Marie-Ève Bergeron, Emmanuel Bujold, Philippe Y Laberge, Madeleine Lemyre, Sylvie Dodin

Open Access Methodology

Health equity: evidence synthesis and knowledge translation methods

Vivian A Welch, Mark Petticrew, Jennifer O’Neill, Elizabeth Waters, Rebecca Armstrong, Zulfiqar A Bhutta, Damian Francis, Tracey Perez Koehlmoos, Elizabeth Kristjansson, Tomas Pantoja, Peter Tugwell

Open Access Protocol

Comparative effectiveness of monotherapies and combination therapies for patients with hypertension: protocol for a systematic review with network meta-analyses

Brian Hutton, Jennifer Tetzlaff, Fatemeh Yazdi, Justin Thielman, Salmaan Kanji, Dean Fergusson, Lise Bjerre, Edward Mills, Kristian Thorlund, Andrea Tricco, Sharon Straus, David Moher, Frans HH Leenen

Open Access Protocol

Safety of serotonin (5-HT3) receptor antagonists in patients undergoing surgery and chemotherapy: protocol for a systematic review and network meta-analysis

Andrea C Tricco, Charlene Soobiah, Jesmin Antony, Brenda Hemmelgarn, David Moher, Brian Hutton, Sharon E Straus

Open Access Protocol

Safety, effectiveness, and cost of dipeptidyl peptidase-4 inhibitors versus intermediate acting insulin for type 2 diabetes: protocol for a systematic review and network meta-analysis

Andrea C Tricco, Jesmin Antony, Charlene Soobiah, Brenda Hemmelgarn, David Moher, Brian Hutton, Catherine H Yu, Sumit R Majumdar, Sharon E Straus

Open Access Research

Bibliometric and content analysis of the Cochrane Complementary Medicine Field specialized register of controlled trials

L Susan Wieland, Eric Manheimer, Margaret Sampson, Jabez Paul Barnabas, Lex M Bouter, Kiho Cho, Myeong Soo Lee, Xun Li, Jianping Liu, David Moher, Tetsuro Okabe, Elizabeth D Pienaar, Byung-Cheul Shin, Prathap Tharyan, Kiichiro Tsutani, Daniëlle A van der Windt, Brian M Berman

Open Access Research

A systematic review of individual patient data meta-analyses on surgical interventions

Gerjon Hannink, Hein G Gooszen, Cornelis JHM van Laarhoven, Maroeska M Rovers

Open Access Protocol

Individual patient data meta-analysis of trials investigating the effectiveness of intra-articular glucocorticoid injections in patients with knee or hip osteoarthritis: an OA Trial Bank protocol for a systematic review

Marienke van Middelkoop, Krysia S Dziedzic, Michael Doherty, Weiya Zhang, Johannes W Bijlsma, Timothy E McAlindon, Stefan L Lohmander, Sita MA Bierma-Zeinstra

Open Access Protocol

Study protocol: a systematic review of pediatric shared decision making

Kirk D Wyatt, Gabriela Prutsky Lopez, Juan Pablo Domecq Garces, Patricia Erwin, William B Brinkman, Victor M Montori, Annie LeBlanc

Open Access Protocol

Physical activity for the prevention and treatment of major chronic disease: an overview of systematic reviews

David Nunan, Kamal R Mahtani, Nia Roberts, Carl Heneghan

Open Access Protocol

Protocol for a systematic review on inequalities in postnatal care services utilization in low- and middle-income countries

Étienne V Langlois, Malgorzata Miszkurka, Daniela Ziegler, Igor Karp, Maria Victoria Zunzunegui

Open Access Protocol

Fatigue in adults with traumatic brain injury: predictors and consequences. A systematic review of longitudinal study protocols

Tatyana Mollayeva, Tetyana Kendzerska, Shirin Mollayeva, Colin M Shapiro, Angela Colantonio, J David Cassidy

Open Access Protocol

Health education interventions to raise awareness of rheumatic fever: a systematic review protocol

Laura Susan Ramsey, Lauren Watkins, Mark Emmanuel Engel

Open Access Protocol

Detecting, quantifying and adjusting for publication bias in meta-analyses: protocol of a systematic review on methods

Katharina Felicitas Mueller, Joerg J Meerpohl, Matthias Briel, Gerd Antes, Erik von Elm, Britta Lang, Viktoria Gloy, Edith Motschall, Guido Schwarzer, Dirk Bassler

Open Access Research

Interventions provided in the acute phase for mild traumatic brain injury: a systematic review

Jocelyn Gravel, Antonio D’Angelo, Benoit Carrière, Louis Crevier, Miriam H Beauchamp, Jean-Marc Chauny, Maggy Wassef, Nils Chaillet

Open Access Protocol

Individual patient data systematic review and meta-analysis of optic nerve sheath diameter ultrasonography for detecting raised intracranial pressure: protocol of the ONSD research group

Julie Dubourg, Mahmoud Messerer, Dimitrios Karakitsos, Venkatakrishna Rajajee, Erik Antonsen, Etienne Javouhey, Alessandro Cammarata, Michael Cotton, Roy Thomas Daniel, Carmelo Denaro, Emmanuel Douzinas, Clément Dubost, Moncef Berhouma, Behrouz Kassai, Muriel Rabilloud, Antonino Gullo, Abderrhammane Hamlat, Gregorios Kouraklis, Giuseppe Mannanici, Keith Marill, Sybille Merceron, John Poularas, Giuseppe Ristagno, Vicki Noble, Sachita Shah, Heidi Kimberly, Gianluca Cammarata, Riccardo Moretti, Thomas Geeraerts

Open Access Protocol

Efficacy of vitamin D supplementation in depression in adults: a systematic review protocol

Guowei Li, Lawrence Mbuagbaw, Zainab Samaan, Shiyuan Zhang, Jonathan D Adachi, Alexandra Papaioannou, Lehana Thabane

Open Access Editorial

Happy birthday: we are one year old

David Moher, Lesley Stewart, Paul Shekelle

Open Access Protocol

Opioids for chronic non-cancer pain: a protocol for a systematic review of randomized controlled trials

Jason W Busse, Stefan Schandelmaier, Mostafa Kamaleldin, Sandy Hsu, John J Riva, Per Olav Vandvik, Ludwig Tsoi, Tommy Lam, Shanil Ebrahim, Bradley Johnston, Lori Oliveri, Luis Montoya, Regina Kunz, Anna Malandrino, Neera Bhatnagar, Sohail M Mulla, Luciane C Lopes, Charlene Soobiah, Anthony Wong, Norman Buckley, Daniel Sessler, Gordon H Guyatt

Open Access Protocol

Incidence, prevalence, and occurrence rate of infection among adults hospitalized after traumatic brain injury: study protocol for a systematic review and meta-analysis

Brittney NV Scott, Derek J Roberts, Helen Lee Robertson, Andreas H Kramer, Kevin B Laupland, Shalina S Ousman, Paul Kubes, David A Zygun

Open Access Protocol

Immigrant women’s experiences of postpartum depression in Canada: a protocol for systematic review using a narrative synthesis

Gina MA Higginbottom, Myfanwy Morgan, Joyce O’Mahony, Yvonne Chiu, Deb Kocay, Mirande Alexandre, Joan Forgeron, Marilyn Young

Open Access Research

Micronutrient fortification of food and its impact on woman and child health: a systematic review

Jai K Das, Rehana A Salam, Rohail Kumar, Zulfiqar A Bhutta

Open Access Commentary

Challenges in implementing The Institute of Medicine systematic review standards

Stephanie M Chang, Eric B Bass, Nancy Berkman, Timothy S Carey, Robert L Kane, Joseph Lau, Sara Ratichek

Open Access Protocol

A protocol for a systematic review of research on managing behavioural and psychological symptoms in dementia for community-dwelling older people: evidence mapping and syntheses

Daksha Trivedi, Claire Goodman, Angela Dickinson, Heather Gage, Jennifer McLaughlin, Jill Manthorpe, Kunle Ashaye, Steve Iliffe

Open Access Protocol

A systematic review investigating fatigue, psychological and cognitive impairment following TIA and minor stroke: protocol paper

Grace M Moran, Benjamin Fletcher, Melanie Calvert, Max G Feltham, Catherine Sackley, Tom Marshall

Open Access Protocol

Safety, effectiveness, and cost of long-acting versus intermediate-acting insulin for type 1 diabetes: Protocol for a systematic review and network meta-analysis

Andrea C Tricco, Huda M Ashoor, Charlene Soobiah, Brenda Hemmelgarn, David Moher, Brian Hutton, Catherine H Yu, Sumit R Majumdar, Sharon E Straus

Open Access Research

Bibliometrics of systematic reviews: analysis of citation rates and journal impact factors

Pamela Royle, Ngianga-Bakwin Kandala, Katharine Barnard, Norman Waugh

Open Access Commentary

Cochrane methods - twenty years experience in developing systematic review methods

Jackie Chandler, Sally Hopewell

Open Access Protocol

Vibration response imaging: protocol for a systematic review

Marc P Berry, Luigi Camporota, George Ntoumenopoulos

Open Access Protocol

Predicting OptimaL cAncer RehabIlitation and Supportive care (POLARIS): rationale and design for meta-analyses of individual patient data of randomized controlled trials that evaluate the effect of physical activity and psychosocial interventions on health-related quality of life in cancer survivors

Laurien M Buffart, Joeri Kalter, Mai JM Chinapaw, Martijn W Heymans, Neil K Aaronson, Kerry S Courneya, Paul B Jacobsen, Robert U Newton, Irma M Verdonck-de Leeuw, Johannes Brug

Open Access Methodology

Issues in the incorporation of economic perspectives and evidence into Cochrane reviews

Ian Shemilt, David McDaid, Kevin Marsh, Catherine Henderson, Evelina Bertranou, Jacqueline Mallander, Mike Drummond, Miranda Mugford, Luke Vale

Open Access Protocol

Structured sedation programs in the emergency department, hospital and other acute settings: protocol for systematic review of effects and events

Siobhán McCoy, Abel Wakai, Carol Blackburn, Michael Barrett, Adrian Murphy, Maria Brenner, Philip Larkin, Gloria Crispino-O’Connell, Savithiri Ratnapalan, Ronan O’Sullivan

Open Access Commentary

Assessing and presenting summaries of evidence in Cochrane Reviews

Miranda W Langendam, Elie A Akl, Philipp Dahm, Paul Glasziou, Gordon Guyatt, Holger J Schünemann

Open Access Protocol

Racism as a determinant of health: a protocol for conducting a systematic review and meta-analysis

Yin Paradies, Naomi Priest, Jehonathan Ben, Mandy Truong, Arpana Gupta, Alex Pieterse, Margaret Kelaher, Gilbert Gee

Open Access Commentary

The evolution of assessing bias in Cochrane systematic reviews of interventions: celebrating methodological contributions of the Cochrane Collaboration

Lucy Turner, Isabelle Boutron, Asbjørn Hróbjartsson, Douglas G Altman, David Moher

Open Access Protocol

Self-collected versus clinician-collected sampling for sexually transmitted infections: a systematic review and meta-analysis protocol

Darlene Taylor, Carole Lunny, Tom Wong, Mark Gilbert, Neville Li, Richard Lester, Mel Krajden, Linda Hoang, Gina Ogilvie

Open Access Research

Cochrane diagnostic test accuracy reviews

Mariska MG Leeflang, Jonathan J Deeks, Yemisi Takwoingi, Petra Macaskill

Open Access Protocol

Protocol for a systematic review of prognostic models for the recurrence of venous thromboembolism (VTE) following treatment for a first unprovoked VTE

Joie Ensor, Richard D Riley, David Moore, Susan Bayliss, Sue Jowett, David A Fitzmaurice

Open Access Protocol

Early changes in somatosensory function in spinal pain: protocol for a systematic review

Anna Marcuzzi, Catherine M Dean, Julia M Hush

Open Access Protocol

Parenteral and oral antibiotic duration for treatment of pediatric osteomyelitis: a systematic review protocol

Chelsey Grimbly, Jeff Odenbach, Ben Vandermeer, Sarah Forgie, Sarah Curtis

Open Access Commentary

Methodological developments in searching for studies for systematic reviews: past, present and future?

Carol Lefebvre, Julie Glanville, L Susan Wieland, Bernadette Coles, Alison L Weightman

Open Access Research

Factors explaining the heterogeneity of effects of patient decision aids on knowledge of outcome probabilities: a systematic review sub-analysis

Stephen J Gentles, Dawn Stacey, Carol Bennett, Mohamad Alshurafa, Stephen D Walter

Open Access Protocol

A realist synthesis of the effect of social accountability interventions on health service providers’ and policymakers’ responsiveness

Elsbet Lodenstein, Marjolein Dieleman, Barend Gerretsen, Jacqueline EW Broerse

Open Access Protocol

Ancillary testing for diagnosis of brain death: a protocol for a systematic review and meta-analysis

Michaël Chassé, Peter Glen, Mary-Anne Doyle, Lauralyn McIntyre, Shane W English, Greg Knoll, Jean-François Lizé, Sam D Shemie, Claudio Martin, Alexis F Turgeon, François Lauzier, Dean A Fergusson

Open Access Protocol

Barriers to the diagnosis of somatoform disorders in primary care: protocol for a systematic review of the current status

Alexandra M Murray, Anne Toussaint, Astrid Althaus, Bernd Löwe

Open Access Protocol

Hand hygiene monitoring technology: protocol for a systematic review

Jocelyn A Srigley, David Lightfoot, Geoff Fernie, Michael Gardam, Matthew P Muller

Open Access Methodology

A surveillance system to assess the need for updating systematic reviews

Nadera Ahmadzai, Sydne J Newberry, Margaret A Maglione, Alexander Tsertsvadze, Mohammed T Ansari, Susanne Hempel, Aneesa Motala, Sophia Tsouros, Jennifer J Schneider Chafen, Roberta Shanman, David Moher, Paul G Shekelle

Open Access Protocol

Understanding interventions for improving routine immunization coverage in children in low- and middle-income countries: a systematic review protocol

Shingai Machingaidze, Eva Rehfuess, Rüdiger von Kries, Gregory D Hussey, Charles S Wiysonge

Open Access Methodology

Risk of bias: a simulation study of power to detect study-level moderator effects in meta-analysis

Susanne Hempel, Jeremy NV Miles, Marika J Booth, Zhen Wang, Sally C Morton, Paul G Shekelle

Open Access Commentary

Meta-analysis and The Cochrane Collaboration: 20 years of the Cochrane Statistical Methods Group

Joanne E McKenzie, Georgia Salanti, Steff C Lewis, Douglas G Altman

Open Access Research

Insufficient evidence for the use of a physical examination to detect maltreatment in children without prior suspicion: a systematic review

Eva MM Hoytema van Konijnenburg, Arianne H Teeuw, Tessa Sieswerda-Hoogendoorn, Arnold G E Leenders, Johanna H van der Lee

Open Access Protocol

The effects of sign language on spoken language acquisition in children with hearing loss: a systematic review protocol

Elizabeth M Fitzpatrick, Adrienne Stevens, Chantelle Garritty, David Moher

Open Access Protocol

Exploring why quality circles work in primary health care: a realist review protocol

Adrian Rohrbasser, Sharon Mickan, Janet Harris

Open Access Letter

PROSPERO’s progress and activities 2012/13

Alison Booth

Open Access Protocol

A methodological survey of the analysis, reporting and interpretation of Absolute Risk ReductiOn in systematic revieWs (ARROW): a study protocol

Pablo Alonso-Coello, Alonso Carrasco-Labra, Romina Brignardello-Petersen, Ignacio Neumann, Elie A Akl, Xin Sun, Bradley C Johnston, Matthias Briel, Jason W Busse, Demián Glujovsky, Carlos E Granados, Alfonso Iorio, Affan Irfan, Laura M García, Reem A Mustafa, Anggie Ramirez-Morera, Iván Solà, Kari A O Tikkinen, Shanil Ebrahim, Per O Vandvik, Yuqing Zhang, Anna Selva, Andrea J Sanabria, Oscar E Zazueta, Robin W M Vernooij, Holger J Schünemann, Gordon H Guyatt

Open Access Protocol

Consumption of chocolate in pregnant women and risk of preeclampsia: a systematic review

Jaime Andres Mogollon, Catherine Boivin, Kadhel Philippe, Stéphane Turcotte, Simone Lemieux, Claudine Blanchet, Emmanuel Bujold, Sylvie Dodin

Open Access Methodology

Judging the quality of evidence in reviews of prognostic factor research: adapting the GRADE framework

Anna Huguet, Jill A Hayden, Jennifer Stinson, Patrick J McGrath, Christine T Chambers, Michelle E Tougas, Lori Wozney

Open Access Methodology

Data extraction from machine-translated versus original language randomized trial reports: a comparative study

Ethan M Balk, Mei Chung, Minghua L Chen, Lina Kong Win Chang, Thomas A Trikalinos