Comments on Changes in Quality of Care after Hospital Mergers and Acquisitions

By Sean May, Monica Noether, and Ben Stearns

In their recent paper, Beaulieu et al. attempt to estimate the effects of hospital acquisitions on measures of hospital quality at the acquired hospitals. To do so, the authors use four measures of hospital quality and compare the changes in these measures at acquired hospitals relative to changes at a set of non-acquired “control” hospitals.