Posts Tagged ‘selection bias’

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April 12th, 2012

Ascertaining ASCERT: How Well Do Registry Data Measure Up to the ‘Bedside Test’?

In the ASCERT observational study, stable patients (age 65 or older) with double- or triple-vessel CAD, but not left-main disease, were found to have better long-term survival after CABG than after PCI. ASCERT was a laudable achievement in terms of its scope and the level of collaboration it represents. The ASCERT investigators used inverse probability weighting (propensity […]