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Editorial Board page IFC Full-Text PDF (113 KB)
Table of Contents pages iii-iv Full-Text PDF (44 KB)
Editorial
Focus on nonexperimental approaches J. André Knottnerus, Peter Tugwell page 1225 Full Text | Full-Text PDF (55 KB)
Tutorial - Instrument Variables
Instrumental variables I: instrumental variables exploit natural variation in nonexperimental data to estimate causal relationships, 09 April 2009 Jeremy A. Rassen, M. Alan Brookhart, Robert J. Glynn, Murray A. Mittleman, Sebastian Schneeweiss pages 1226-1232 Abstract | Full Text | Full-Text PDF (120 KB)
Instrumental variables II: instrumental variable application—in 25 variations, the physician prescribing preference generally was strong and reduced covariate imbalance, 06 April 2009 Jeremy A. Rassen, M. Alan Brookhart, Robert J. Glynn, Murray A. Mittleman, Sebastian Schneeweiss pages 1233-1241 Abstract | Full Text | Full-Text PDF (233 KB)
Commentary
The Bayesian interpretation of a P-value depends only weakly on statistical power in realistic situations, 24 April 2009 Richard Hooper pages 1242-1247 Abstract | Full Text | Full-Text PDF (248 KB) | Add-Ons
Systematic Review
Decision analysis to complete diagnostic research by closing the gap between test characteristics and cost-effectiveness, 13 April 2009 Joanna D. Schaafsma, Yolanda van der Graaf, Gabriel J.E. Rinkel, Erik Buskens pages 1248-1252 Abstract | Full Text | Full-Text PDF (96 KB)
Methods of Systematic Reviews and Meta-Analyses
Not only randomized controlled trials, but also case series should be considered in systematic reviews of rapidly developing technologies, 06 April 2009 Duncan Chambers, Mark Rodgers, Nerys Woolacott pages 1253-1260.e4 Abstract | Full Text | Full-Text PDF (220 KB)
MEDLINE, EMBASE, and Cochrane index most primary studies but not abstracts included in orthopedic meta-analyses, 13 April 2009 Gerard P. Slobogean, Ashim Verma, Dean Giustini, Bronwyn L. Slobogean, Kishore Mulpuri pages 1261-1267 Abstract | Full Text | Full-Text PDF (230 KB)
Systematic reviews reveal unrepresentative evidence for the development of drug formularies for poor and nonwhite populations, 20 April 2009 Donna H. Odierna, Lisa A. Bero pages 1268-1278 Abstract | Full Text | Full-Text PDF (162 KB)
A network meta-analysis combined direct and indirect comparisons between glaucoma drugs to rank effectiveness in lowering intraocular pressure, 01 September 2009 Rikkert van der Valk, Carroll A.B. Webers, Thomas Lumley, Fred Hendrikse, Martin H. Prins, Jan S.A.G. Schouten pages 1279-1283 Abstract | Full Text | Full-Text PDF (118 KB)
Associating explanatory variables with summary receiver operating characteristic curves in diagnostic meta-analysis, 24 April 2009 Taye Hussein Hamza, Hans C. van Houwelingen, Majanka H. Heijenbrok-Kal, Theo Stijnen pages 1284-1291 Abstract | Full Text | Full-Text PDF (355 KB)
Original Articles
Differences between univariate and bivariate models for summarizing diagnostic accuracy may not be large, 18 May 2009 David L. Simel, Patrick M.M. Bossuyt pages 1292-1300 Abstract | Full Text | Full-Text PDF (143 KB) | Add-Ons
Correlation between serial tests made disease probability estimates erroneous, 01 September 2009 Carl van Walraven, Peter C. Austin, Alison Jennings, Alan J. Forster pages 1301-1305 Abstract | Full Text | Full-Text PDF (445 KB)
Changes in surrogate outcomes can be translated into clinical outcomes using a Monte Carlo model, 22 June 2009 Carl van Walraven, Natalie Oake, Doug Coyle, Monica Taljaard, Alan J. Forster pages 1306-1315 Abstract | Full Text | Full-Text PDF (279 KB)
Agreement between self-reported and health insurance claims on utilization of health care: A population study, 29 April 2009 Sheng-Tsung Yu, Hsing-Yi Chang, Ming-Chu Lin, Yu-Hsuan Lin pages 1316-1322 Abstract | Full Text | Full-Text PDF (127 KB)
Estimating a preference-based index from the Japanese SF-36, 17 July 2009 John E. Brazier, Shunichi Fukuhara, Jennifer Roberts, Samer Kharroubi, Yosuke Yamamoto, Shunya Ikeda, Jim Doherty, Kiyoshi Kurokawa pages 1323-1331 Abstract | Full Text | Full-Text PDF (320 KB)
Publicity does not increase recruitment to falls prevention trials: the results of two quasi-randomized trials, 27 May 2009 Alison Pighills, David J. Torgerson, Trevor Sheldon pages 1332-1335 Abstract | Full Text | Full-Text PDF (135 KB)
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