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ohdsi-studies / Covid19SubjectsAesiIncidenceRate

Extending on our previous work by Li et al. in understanding the incidence rates of adverse events of special interest (AESI) for COVID-19, this work will look at the rates of these AESIs in patients who had COVDI-19 disease.
https://ohdsi-studies.github.io/Covid19SubjectsAesiIncidenceRate/Protocol.html
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IU CDM Version Difference #35

Closed ericaVoss closed 2 years ago

ericaVoss commented 2 years ago

I can see this data is larger for the most part – although weirdly there are less COVID patients. Where any changes made with the COVID data? Maybe with measurements?

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As you said, the full CDM database size is larger, also including more COVID patients. This was our main question. We think similar to you. The issue may be related to the measurement code we used. In our source data, the number of patients with a positive COVID-PCR test is over 20.000. However, the R package did not capture these patients with positive tests. We talked about this with Barış and he changed the measurement concept ID and re-ran the package. But the results did not change.

ericaVoss commented 2 years ago

Waiting for Baris to return home

ericaVoss commented 2 years ago

We figured out that this is correct. It was an update to the OBSERVATION_PERIOD table that cause some people to not have enough observable time prior to index.