Total blood white cell count
Name total_wbc_gprd
Chapter Diseases of the blood/Full blood count
Definition
Total blood white cell count in GPRD. Values with missing units frequently have zero recorded, but this is not the case if units are provided. It is theoretically possible to have a total white cell count measured as zero (severely immunosuppressed patients, or if white cell count is below the lower limit of detection). It is up to the analyst to remove zero values if desired, for example if the log white cell count is to be used in analysis.
Data Type Continuous
Data sources GPRD
Repeated Yes
Units 10^9 / L
Range (min/max) 0-50
Valid event date range 01/01/1900 - 25/03/2010
Agreed 19 Jun 2013 (Revision 1)
Implementation
If Read code is in the total_wbc_gprd codelist

AND enttype = 207

AND data2 [value] < 50

AND data3 [units] IN (37 [10*9/L], 153 [10*9], 17 [/L])

THEN total_wbc_gprd = data2
Codelist version1
Codelist authorsAnoop Shah
Creation date19 Jun 2013
Category (code) Clinical code Clinical term Datasource lookup
(1) 42H..00 Total white cell count 15
(1) 42H..11 White blood count 13817
(1) 42H..12 White cell count 13818
(1) 42H1.00 White cell count normal 26948
(1) 42H2.00 Leucopenia - low white count 26325
(1) 42H2.11 Leucopenia 1955
(1) 42H3.00 Leucocytosis -high white count 22293
(1) 42H3.11 Leucocytosis 18516
(1) 42H5.00 White cell count abnormal 4996
(1) 42H7.00 Total white blood count 26947
(1) 42H8.00 Total WBC (IMM) 48015
(1) 42HZ.00 Total white cell count NOS 26946
(1) D400A00 Leucopenia 3372
(1) D40y.11 Leucocytosis 53865
(1) D40y.12 Leukocytosis 92372
(1) D40yz11 Leucocytosis 4760
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