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Hba1C Testing

Evangelos Kontopantelis, David Springate, David Reeves, Darren M Ashcroft, Jose M Valderas, Tim Doran

Type
Biomarker
ID
PH529
Version ID
1058
Data Sources
Valid event data range
01/04/2004 - 31/03/2021
Sex
Female, Male
Agreement Date
2014-01-27
Coding system
Read codes v2 OXMIS codes
Tags /Collections
ClinicalCodes Repository Phenotype Library

Definition

The study period extended from 1 April 2004, the date of introduction of the incentivisation scheme, to 31 March 2012. Practices’ performance under the QOF is measured over a financial year, so we divided the study period into eight financial years (1 April to 31 March the following year). Not all 644 practices provided research standard data (as assessed by the CPRD assessment algorithm) for the whole period. Within each year, we identified practices that reliably contributed data for the whole year. Our main dataset comprised this group of practices, which varies over time. We also generated two alternative datasets with which to assess the sensitivity of our findings. For the first, we included 452 practices that were continuously active and up to standard for the whole of the study period; for the second, we selected a subsample of 50 practices that were most representative of UK practices in terms of list sizes of patients and area deprivation according to the Index of Multiple Deprivation,13 14 two of the most important predictors of QOF performance.12 15 16 In each of the three datasets, for each financial year, we defined “eligible” patients as those registered with an included practice for the full year.

Publications

  • Evangelos Kontopantelis, David Springate, David Reeves, Darren M Ashcroft, Jose M Valderas, Tim Doran, Withdrawing performance indicators: retrospective analysis of general practice performance under UK Quality and Outcomes Framework. BMJ, 348:g330, 2014.

Clinical Code List

Rows: 18
Code Description Entity type Coding System (OXMIS Read) Category
42W..00 Hb. A1C - diabetic control HbA1C_testing Read test
42W..11 Glycosylated Hb HbA1C_testing Read test
42W..12 Glycated haemoglobin HbA1C_testing Read test
42W1.00 Hb. A1C < 7% - good control HbA1C_testing Read test
42W2.00 Hb. A1C 7-10% - borderline HbA1C_testing Read test
42W3.00 Hb. A1C > 10% - bad control HbA1C_testing Read test
42W4.00 HbA1c level (DCCT aligned) HbA1C_testing Read test
42c..00 HbA1 - diabetic control HbA1C_testing Read test
42c0.00 HbA1 < 7% - good control HbA1C_testing Read test
42c1.00 HbA1 7 - 10% - borderline control HbA1C_testing Read test
42c2.00 HbA1 > 10% - bad control HbA1C_testing Read test
42c3.00 HbA1 level (DCCT aligned) HbA1C_testing Read test
44TB.00 Haemoglobin A1c level HbA1C_testing Read test
44TC.00 Haemoglobin A1 level HbA1C_testing Read test
44TD.00 Fructosamine level HbA1C_testing Read test
44TL.00 Total glycosylated haemoglobin level HbA1C_testing Read test
44Z1.00 Serum fructosamine HbA1C_testing Read test
44Z1000 Corrected fructosamine HbA1C_testing Read test
Rows: 5
Code Description Entity type Coding System (OXMIS Read) Category
2718PA FRUCTOSAMINE HbA1C_testing OXMIS test
L2859G Hb A1C (GLYCOSYLATED HAEMOGLOBIN TEST) HbA1C_testing OXMIS test
L2859GA Hb A1C NORMAL (GLYCOSYLATED HAEMOGLOBIN HbA1C_testing OXMIS test
L2859GB Hb A1C HIGH (GLYCOSYLATED HAEMOGLOBIN TE HbA1C_testing OXMIS test
L9027F SERUM FRUCTOSAMINE LEVEL HbA1C_testing OXMIS test

API

To Export Phenotype Details:

Format API
XML site_root/api/v1/public/phenotypes/PH529/version/1058/detail/?format=xml
JSON site_root/api/v1/public/phenotypes/PH529/version/1058/detail/?format=json
R Package

# Download here

library(ConceptLibraryClient)


# Connect to API

client = connect_to_API(public=TRUE)


# Get details of phenotype

details = get_phenotype_detail_by_version('PH529', '1058', api_client=client)

To Export Phenotype Code List:

Format API
XML site_root/api/v1/public/phenotypes/PH529/version/1058/export/codes/?format=xml
JSON site_root/api/v1/public/phenotypes/PH529/version/1058/export/codes/?format=json
CSV site_root/phenotypes/PH529/version/1058/export/codes/
R Package

# Download here

library(ConceptLibraryClient)


# Connect to API

client = connect_to_API(public=TRUE)


# Get codelists of phenotype

codelists = get_phenotype_code_list('PH529', '1058', api_client=client)

Version History

Version
ID
Name Owner Publish date
1058 Hba1C Testing ieuan.scanlon 2021-10-06 currently shown

Export - export all codes into a csv file/JSON/XML for the current phenotype version.

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