Haemoglobin concentration
Name haemoglobin_gprd
Chapter Diseases of the blood/Full blood count
Definition
Haemoglobin concentration in the GPRD test table, in g/dL. Values <= 3 or >= 25 are considered to be invalid. Units must be g/dL, g/L or missing (e.g. not mmol/mol or %). Measurements are allowed to have incorrect units as long as they are in a sensible range.
Data Type Categorical
Data sources GPRD
Repeated Yes
Units g/dL
Range (min/max) 3-25
Valid event date range 01/01/1900 - 25/03/2010
Agreed 19 Jun 2013 (Revision 1)
Category Definition
Implementation
IF Read code is in the haemoglobin_gprd codelist

AND enttype = 173 

AND data3 [units] In (56 [g/dL], 57 [g/L], 0 [Missing]) THEN (

    IF data2 > 3 AND data2 < 25 THEN haemoglobin_gprd = data2

    ELSE IF data2 > 30 AND data2 < 250 THEN haemoglobin_gprd = data2 / 10

    ELSE haemoglobin_gprd = Missing

)
Codelist version1
Codelist authorsAnoop Shah
Creation date19 Jun 2013
Category (code) Clinical code Clinical term Datasource lookup
(1) 423..00 Haemoglobin estimation 4
(1) 423..11 Hb estimation 10404
(1) 4234.00 Haemoglobin very low 35749
(1) 4235.00 Haemoglobin low 3942
(1) 4236.00 Haemoglobin borderline low 26910
(1) 4237.00 Haemoglobin normal 26909
(1) 4238.00 Haemoglobin borderline high 26272
(1) 4239.00 Haemoglobin high 26913
(1) 423A.00 Haemoglobin very high 41531
(1) 423B.00 Haemoglobin abnormal 26908
(1) 423Z.00 Haemoglobin estimation NOS 26912
(1) 424..00 Full blood count - FBC 13
(1) 4241.00 Full blood count normal 13596
(1) 4242.00 Full blood count borderline 23817
(1) 4243.00 Full blood count abnormal 16387
(1) 424Z.00 Full blood count NOS 13860
comments powered by Disqus