Sampling: how you choose people is as important as how you analyse their data.
Macquarie University, Sydney, NSW mike.jones@mq.edu.au.
Michael P
MP
Jones
Centre for Clinical Epidemiology and Biostatistics, University of Newcastle, Newcastle, NSW.
John R
JR
Attia
D001315:Australia; D035843:Biomedical Research / Q000706:statistics & numerical data*; D016000:Cluster Analysis; D003625:Data Collection / Q000706:statistics & numerical data*; D006801:Humans; D018579:Patient Selection; D012107:Research Design / Q000706:statistics & numerical data*; D012494:Sampling Studies; D015983:Selection Bias