Does analysis using “last observation carried forward” introduce bias in dementia research?

By F. Molnar, B. Hutton, D. Fergusson. 2008

139 citations recorded by the source corpus.

If there were a prize for the most inappropriate analytical technique in dementia research, “last observation carried forward” would be the runaway winner. As a society, we have spent millions of dollars on drug research in the hope of improving the care of the estimated 24.3 million people who

Subfields: Economics and Econometrics, Psychiatry and Mental health, Statistics and Probability

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Economics and Econometrics

In Statistics and Probability

Citations in the corpus

Modeling Consumer Preferences and Price Sensitivities from Large-Scale Grocery Shopping Transaction Logs (2017, methodology): “Specifically, we applied a simple ‘hot deck’ method [26] for imputing these missing prices, where the transactions are sorted by timestamps and the last observed price of the same product is carried forward to the current missing price.”
CONSORT 2010 explanation and elaboration: updated guidelines for reporting parallel group randomised trials. (2012, result): “More recently, a comparison between the adverse event data submitted to the trials database of the National Cancer Institute, which sponsored the trials, and the information reported in journal articles found that low grade adverse events were underre-ported in journal articles.”