Statistical Tools for Clinical Research

"Learn to make numbers talk. They will speak to you about hard truths
and also reveal the future." John D. Rockefeller (1839-1937)

Calculators

• Chris Cates' EBM web site (NNT graphical display)
• QuickCalcs: P values, Confidence Intervals, NNT (GraphPad)
• Diagnostic Tests: Likelihood Ratios (Alan Schwartz)
• Stats: Diagnostic tests, Relative Risk, Odds Ratio (Centre for EBM, Toronto)
• VasersStats: Risk and Odds Ratio (Richard Lowry)
• Sample size (Rollin Brant, UBC)
• Survey sample size (Creative Research Systems)

Databases

• Adverse Reaction Database (Health Canada)
• Atlee Perinatal Database (Nova Scotia)
• Census Bureau (U.S.)
• FedStats (U.S. Federal agencies)
• National Center for Education Statistics (NCES)
• Niday Perinatal Database (Ontario)
• SEER (National Cancer Institute)
• Statistics Canada

Software

• Biostatistics
• Epi Info (CDC)
• InStat (GraphPad)
• PASW (formerly SPSS Statistics) (Queen's)
• SAS (Queen's)
• Stata (StataCorp)
• StatPages.net (John Pezzullo)

• Meta-analysis
• Cochrane Library Online
• Comprehensive Meta-analysis (Biostat)
• Review Manager (RevMan) (Cochrane Collaboration's IMS)
• TrialStat! (data management for clinical studies)

• Sample Size and Power
• StatMate (Graphpad)
• Power Analysis and Sample Size (PASS) (NCSS)
• Power and Precision (Biostat)

Survey Research

• The Gallup Organization
• What is a survey? (Fritz Scheuren)

Updated: Phil Hahn, November 20, 2011