A difference-in-differences analysis of health care claims data evaluated excess health care costs in the 12 months following COVID-19 diagnosis among the general and older adult populations.

The difference-in-differences analysis compared cancer programs with high use vs. low use of neoadjuvant chemotherapy (NACT), as researchers understood the “tremendous treatment selection bias ...

Objective To estimate changes in healthcare spending in the US after implementation of the No Surprises Act (NSA) in 2022 ...

Patient care experiences worsened after private equity firms took over hospitals, according to a difference-in-differences analysis. From 2008 to 2019, the percentage of patients rating hospitals ...