Table 1

Identifiable and anonymised data variables

Anonymised clinical data
Identifiable patient dataMinimum data setAdditional variables (if available)*
Patient nameAgeWaist circumference
Date of birthSexAlcohol consumption
Current addressEthnicityRight and left arm clinic blood pressure
Post codeSmoking statusHistory of left ventricular hypertrophy
NHS numberHeightSodium
3–6 clinic blood pressure readingsCalcium
Daytime ABPTotal cholesterol
Night-time ABPHDL cholesterol
24 ABPTriglycerides
Number of readingsHbA1c
Reason for monitoringPlasma renin levels
Diagnosis of hypertensionCreatinine
History of hypertensioneGFR
History of myocardial infarctionAlbumin:creatinine ratio
History of strokeUrinalysis
History of heart failureThyroid-stimulating hormone
History of diabetesFree Thyroxine (T4)
History of chronic kidney diseaseAlbumin
History of atrial fibrillationAlanine transaminase (ALT)
Antihypertensive prescriptionAspartate aminotransferase (AST)
Statin prescriptionAlkaline phosphatase (ALP)
Antiplatelet prescriptionTotal bilirubin
  • *Blood analyses are only routinely conducted in Secondary Care. Only measurements taken during the baseline visit will be deemed acceptable for inclusion.

  • ABP, ambulatory blood pressure; eGFR, estimated glomerular filtration rate; HbA1c, glycated haemoglobin; HDL, high-density lipoprotein; NHS, National Health Service.