The problem with odds ratios

Many researchers use logit models to estimate the effect of specific variables on a binary (i.e., 0 or 1) outcome.  How are these models derived?  How are odds ratios calculated?  What are the problems with odds ratios?  I answer all these questions in this post, following a lovely summary by Norton and Dowd (2018). Deriving…

Healthcare Economist reaches 4,000 Posts

This post is my 4,000th blog post here at Healthcare Economist.  The blog started January 19, 2006, when I (not so) cleverly titled my very first blog post “Welcome!!!”  Over the years, we have covered a variety of issues: from health reform and value-based purchasing, to innovation and outcomes-based pricing; from current events and health…

Estimated prevalence of undiagnosed atrial fibrillation in the United States

This paper–written with co-authors Mintu P. Turakhia, Katalin Bognar, Jeffrey Trocio, Younos Abdulsattar, Daniel Wiederkehr, and Dana P. Goldman–is now up at PLOS One.  The study abstract is pasted below. Introduction As atrial fibrillation (AF) is often asymptomatic, it may remain undiagnosed until or even after development of complications, such as stroke. Consequently the observed…

Which inflation index should I use?

Many studies use data on health care costs from multiple time periods.  To make costs comparable over time, researchers often use an inflation index to translate previous years costs to current dollars.  The first question is, what inflation indices are available to make this adjustment.  A paper by Dunn et al. (2018) reviews the potential…

Links

I’m very skeptical of appropriateness modifiers. Computer scientist prefers paper voting. The Florida shuffle. Workers’ Comp managed care. Does culture matter for quality of care in hospitals? Should you give up on preventive care?

Patient-Centered Formularies: Steps In The Right Direction, But Challenges Remain

That is the title of my latest blog post in Health Affairs with co-author Mark Linthicum.  The premise is as follows: CVS recently announced its new Transform Rheumatoid Arthritis Care initiative, which aims to reshape coverage of rheumatoid arthritis care through “value-based management strategies including outcomes based contracts and a new indication-based formulary for autoimmune…