Sparse data bias: a problem hiding in plain sight.
Department of Epidemiology and Department of Statistics, University of California, Los Angeles, CA, USA.
Sander
S
Greenland
Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, PO box 14155-6446, Tehran, Iran mansournia_ma@yahoo.com.
Mohammad Ali
MA
Mansournia
Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK.
Douglas G
DG
Altman
D015982:Bias; D006801:Humans; D016013:Likelihood Functions; D016017:Odds Ratio; D017063:Outcome Assessment, Health Care / Q000379:methods / Q000592:standards; D058996:Quality Improvement; D018570:Risk Assessment / Q000706:statistics & numerical data*; D018401:Sample Size