Information for time of measurement
Hello, I am working with proteomics data and have a question regarding pQTL analysis.
I want to use the time between sample collection and measurement, as described in the UKB-PPP paper by Benjamin Sun et al.: “For the discovery cohort, association models included the following covariates: age, age², sex, age × sex, age² × sex, batch, UKB centre, UKB genetic array, time between blood sampling and measurement, and the first 20 genetic principal components.”
However, I cannot find the field for the time of blood measurement in the proteomics data. In the metabolomics data, there is a field for measured time (field number 23658). Can I use this field for proteomics data as well, or is there a different, related field that I should refer to?
Thanks for your help.
Comments
3 comments
The Olink proteomics and the Nightingale metabolomics were separate projects, and the metabolomics measurement time in field 23658 is completely different from the proteomics measurement time.
I think you need Resource 1019, Olink processing start date, see https://biobank.ndph.ox.ac.uk/showcase/refer.cgi?id=1019, along with the plate information from field 30901 in Category 1839, https://biobank.ndph.ox.ac.uk/showcase/label.cgi?id=1839 .
The link for Resource 1019 above is not working, probably because of the comma. For future reference here is the link again,
https://biobank.ndph.ox.ac.uk/showcase/refer.cgi?id=1019
Thanks for your clear answer.
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