We linked the ACCF National Cardiovascular Data Registry and the STS Adult Cardiac Surgery Database to claims data from the Centers for Medicare and Medicaid Services for the years 2004 through 2008. Outcomes were compared with the use of propensity scores and inverse-probability-weighting adjustment to reduce treatment-selection bias.
I reckon you're right. It's a misspelling. It means "to read" here.
But I think "to" before claim has been used to show the purpose of linking, so claim can't be a noun here. It's a verb with a misspelling.We linked........to claim/ in order to claim/ so that we could claim....
What's going on here? Bhai answered this in post #2.
There's no way that 'claims' can mean 'read'.
'. . .claims data' means 'data about claims'. . .insurance claims (noun). . .Medicare and Medicaid are medical insurance schemes.
"Claims data" is treated as a single noun here. The Registry and the Database have been linked to "claims data" (data about claims).
Thank you all.