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Table of Contents | September 2009

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Accentuating the negative.

In this month's Editorial the PLoS Medicine Editors discuss the importance of valid negative results, and their immediate and open availability, in maintaining the integrity of the medical literature, especially when clinical effectiveness is at issue. The Editorial suggests that physicians mindful of Hippocrates's vow "first do no harm" should appreciate that a study "that questions the accepted or desired way of doing things can be at least as important as one that supports a new approach." Given the US movement to undertake comparative effectiveness research (CER)—which calls for a wide range of study designs to "assist consumers, clinicians and policy-makers in making informed decisions"—the Editorial argues for transparency in the design and reporting of all types of research, including data that cast doubt on prevailing practices.

Image Credit: Image adapted from photograph by Tony Fischer, Carpe Diem Photography, at flickr.com

 
 

Editorials

Ensuring Integrity in Comparative Effectiveness Research: Accentuate the Negative

Ghostwriting: The Dirty Little Secret of Medical Publishing That Just Got Bigger

 

Essays

Improving the Quantitative Basis of the Surgical Burden in Low-Income Countries

Theo Vos

Evaluating eHealth: Undertaking Robust International Cross-Cultural eHealth Research

David W. Bates, Adam Wright

 

Perspectives

Grading Quality of Evidence and Strength of Recommendations: A Perspective

Mohammed T. Ansari, Alexander Tsertsvadze, David Moher

Changing Patterns of Dengue Epidemiology and Implications for Clinical Management and Vaccines

Cameron P. Simmons, Jeremy Farrar

Inflammatory Markers and Outcomes in Cardiovascular Disease

Leonard Kritharides

 

Policy Forums

Considering Usual Medical Care in Clinical Trial Design

Liza Dawson, Deborah A. Zarin, Ezekiel J. Emanuel, Lawrence M. Friedman, Bimal Chaudhari, Steven N. Goodman

Male Circumcision for HIV Prevention in High HIV Prevalence Settings: What Can Mathematical Modelling Contribute to Informed Decision Making?

The GRADE System for Rating Clinical Guidelines

Brian P. Kavanagh

 

Research in Translation

Should Burden of Disease Estimates Include Cannabis Use as a Risk Factor for Psychosis?

Louisa Degenhardt, Wayne D. Hall, Michael Lynskey, John McGrath, Jennifer McLaren, Bianca Calabria, Harvey Whiteford, Theo Vos

 

Research Articles

The Impact of the Demographic Transition on Dengue in Thailand: Insights from a Statistical Analysis and Mathematical Modeling

Derek A. T. Cummings, Sopon Iamsirithaworn, Justin T. Lessler, Aidan McDermott, Rungnapa Prasanthong, Ananda Nisalak, Richard G. Jarman, Donald S. Burke, Robert V. Gibbons

The Effect of Changing Patterns of Obstetric Care in Scotland (1980–2004) on Rates of Preterm Birth and Its Neonatal Consequences: Perinatal Database Study

Jane E. Norman, Carole Morris, James Chalmers

Cholinesterase Inhibitors and Hospitalization for Bradycardia: A Population-Based Study

Laura Y. Park-Wyllie, Muhammad M. Mamdani, Ping Li, Sudeep S. Gill, Andreas Laupacis, David N. Juurlink

Trial Publication after Registration in ClinicalTrials.Gov: A Cross-Sectional Analysis

Joseph S. Ross, Gregory K. Mulvey, Elizabeth M. Hines, Steven E. Nissen, Harlan M. Krumholz

Effect of Duration and Intermittency of Rifampin on Tuberculosis Treatment Outcomes: A Systematic Review and Meta-Analysis

Dick Menzies, Andrea Benedetti, Anita Paydar, Ian Martin, Sarah Royce, Madhukar Pai, Andrew Vernon, Christian Lienhardt, William Burman

Standardized Treatment of Active Tuberculosis in Patients with Previous Treatment and/or with Mono-resistance to Isoniazid: A Systematic Review and Meta-analysis

Dick Menzies, Andrea Benedetti, Anita Paydar, Sarah Royce, Madhukar Pai, William Burman, Andrew Vernon, Christian Lienhardt

The Risk of Fractures Associated with Thiazolidinediones: A Self-controlled Case-Series Study

Ian J. Douglas, Stephen J. Evans, Stuart Pocock, Liam Smeeth

Inflammatory Markers and Poor Outcome after Stroke: A Prospective Cohort Study and Systematic Review of Interleukin-6

William Whiteley, Caroline Jackson, Steff Lewis, Gordon Lowe, Ann Rumley, Peter Sandercock, Joanna Wardlaw, Martin Dennis, Cathie Sudlow

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