Platelet count
Name platelets_gprd
Chapter Diseases of the blood/Full blood count
Definition
Platelet count in GPRD test table, with biologically implausible extreme values excluded.
Data Type Continuous
Data sources GPRD
Repeated Yes
Units 10^9 / L
Range (min/max) 0-1500
Valid event date range 01/01/1900 - 25/03/2010
Agreed 19 Jun 2013 (Revision 1)
Implementation
If Read code is in the platelets_gprd codelist

AND enttype = 189

AND data2 (value) < 1500

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

THEN platelets_gprd = data2
Codelist version1
Codelist authorsAnoop Shah
Creation date19 Jun 2013
Category (code) Clinical code Clinical term Datasource lookup
(1) 42P..00 Platelet count 7
(1) 42P1.00 Platelet count normal 26927
(1) 42P2.00 Thrombocytopenia 4006
(1) 42P3.00 Thrombocythaemia 3320
(1) 42P4.00 Platelet count abnormal 4415
(1) 42PZ.00 Platelet count NOS 26926
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