Tag Archives: administrative data uses

In NEJM: Protection or Harm? Suppressing Substance-Use Data

16 Apr

This post is jointly authored by Nicholas Bagley and Austin Frakt. Yesterday evening, the New England Journal of Medicine released a Perspective piece that

via In NEJM: Protection or Harm? Suppressing Substance-Use Data.

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Propensity scores

25 Jul

Propensity score gives the probability of a subject in a population to belong to a group of interest such as a treatment group.
Then comparing subjects with the same propensity scores across treatment and no-treatment groups enables the researcher to infer on the effect of the treatment regarding a given outcome even if he works on merely observational data.
But the researcher must beware of the unobserved differences between the group of interest and the comparison group created using the propensity score.
As always the relevance of the model depends on the nature of the covariates entered in it.

Garrido, M. M., Kelley, A. S., Paris, J., Roza, K., Meier, D. E., Morrison, R. S. and Aldridge, M. D. (2014), Methods for Constructing and Assessing Propensity Scores. Health Services Research. doi: 10.1111/1475-6773.12182

http://onlinelibrary.wiley.com/doi/10.1111/1475-6773.12182/abstract

http://theincidentaleconomist.com/wordpress/methods-propensity-scores/

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