Tag Archives: DiD

The Nextera/DigitalGlobe study design made any conclusion on the downstream effect of subscription primary care impossible.

The study indiscriminately mixed subscription patients with pay-per-visit patients. Selection bias was self-evident; the study period was brief; and the study cohort tiny. Still, the study suggests that choosing Nextera and its doctors was associated with lower costs; but the study’s core defect prevents the drawing of any conclusions about subscription primary care. ADDENDUM ofContinue reading “The Nextera/DigitalGlobe study design made any conclusion on the downstream effect of subscription primary care impossible.”

Nextera’s marketing presentation establishes huge selection bias, while revealing modest evidence that Nextera cuts cost for some of its patients. But the data set is tiny, old, and contaminated by results for fee for service patients!

UPDATE 5/31/2019. This needs a correction, but I want to leave it intact below for the record. I have in the title above and the text below that the Nextera data is contaminated by FFS patient data. This is not correct. To preserve HSA tax advantages, many of the Nextera patients did not want toContinue reading “Nextera’s marketing presentation establishes huge selection bias, while revealing modest evidence that Nextera cuts cost for some of its patients. But the data set is tiny, old, and contaminated by results for fee for service patients!”