Extraction of phenotypes from gp_clinical
Hello,
I am trying to extract a variable from the GP Clinical dataset, specifically focusing on serum prealbumin levels. I have reviewed the relevant READ2/CTV3 codes from the 592 field and identified potential codes such as '44MM.' and 'XaIoc' listed in the data dictionary. However, I haven't been able to retrieve this information from the GP Clinical file.
Could anyone advise on how to query the GP Clinical dataset to obtain these values? I also checked field 42040, but it seems this variable is missing there.
Additionally, I understand that the GP data is censored around 2016/2017. Still, I believe it should be possible to retrieve this information for individuals with earlier records, even if the sample size is smaller. Any guidance on how to proceed would be greatly appreciated.
Regards,
Akhil
Comments
2 comments
Hi Akhil,
I agree that those codes for the prealbumin test are not present in the UKB GP Clinical data . This is probably because they are not common in UK practice, see the last paragraph of section Prealbumin as a nutritional marker in Ranasinghe https://journals.sagepub.com/doi/full/10.1177/0004563220931885 which says “Interestingly, in the UK, prealbumin is mentioned in the NICE guidelines policy, but not used in clinical practice. Many years of poor consensus has led to prealbumin being popular among researchers, especially as a biomarker of nutritional recovery, but somewhat ignored in the larger nutritional community.”
Thank you for using the forum
Thank you so much for the response.
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