Stable angina phenotype
Name phenotype_sa
Chapter Circulatory disease/Stable angina
Definition
A patient is considered to be diagnosed with stable angina on the earliest of:
1. Recorded diagnosis of stable angina in primary or secondary care
2. At least two prescriptions of anti-anginal medication (nitrates, ranolazine, nicorandil or ivabradine)
3. Coronary revascularisation without unstable angina or myocardial infarction in the previous 30 days
4. Primary care record of abnormal coronary angiogram or test showing evidence of myocardial ischaemia
Data sources GPRD, HES
Dictionaries Read, Multilex, BNF, OPCS 4, ICD 10
Repeated No
Agreed 10/04/2014 (Revision 2)
Implementation
1. Recorded diagnosis:
Primary care diagnosis of ischaemic chest pain: chest_pain_gprd, category 4
Primary care diagnosis of stable angina: sa_diagnosis_gprd, category 4
Secondary care diagnosis of stable angina: angina_hes, category 4

2. Medication:
At least two prescriptions of anti-anginal medication (nitrates, ranolazine, nicorandil or ivabradine): angina_meds, category 1
Date of the earliest anti-anginal prescription is considered the date of angina diagnosis.

3. Coronary revascularisation without unstable angina (phenotype_ua) or myocardial infarction (phenotype_mi) in the previous 30 days:
Primary care record of percutaneous coronary intervention (PCI): pci_gprd, category 2
Secondary care record of PCI: pci_opcs, category 2
Primary care record of coronary artery bypass graft (CABG): cabg_gprd, category 2
Secondary care record of CABG: cabg_opcs, category 2

4. Test results:
Primary care record of abnormal stress echocardiogram: stress_echo_gprd, category 3
Primary care record of abnormal invasive coronary angiogram: inv_angio_gprd, category 3
Primary care record of abnormal computed tomography coronary angiogram: ct_angio_gprd, category 3
Primary care record of abnormal magnetic resonance coronary angiogram: mr_angio_gprd, category 3
Primary care record of abnormal exercise ECG: eecg_gprd, category 3
Primary care record of myocardial ischaemia on resting ECG: recg_gprd, category 2
Primary care record of abnormal myocardial perfusion scan: radio_scan_gprd, category 3
Phenotype components
Variable TitleCategories
chest_pain_gprd Chest pain diagnosis (primary care)
  • 4 - Chest pain, attributed to coronary causes
sa_diagnosis_gprd Diagnosis of stable angina (primary care)
  • 4 - Stable angina
angina_hes Stable angina diagnosis (secondary care)
  • 4 - Stable angina admission
angina_meds Anti anginal medication (primary care)
  • 1 - Yes
pci_gprd PCI performed (primary care)
  • 2 - PCI performed
pci_opcs Percutaneous coronary intervention (PCI) procedure (secondary care)
  • 2 - PCI performed
cabg_gprd CABG performed (primary care)
  • 2 - CABG Performed
cabg_opcs Coronary artery bypass graft surgery (CABG) procedure (secondary care)
  • 2 - CABG performed
stress_echo_gprd Stress Echocardiogram results (primary care)
  • 3 - Results abnormal
inv_angio_gprd Invasive coronary angiogram results (primary care)
  • 3 - Results abnormal
ct_angio_gprd CT coronary angiogram results (primary care)
  • 3 - Results abnormal
mr_angio_gprd MR coronary angiogram (primary care)
  • 3 - Results abnormal
eecg_gprd Exercise ECG results (primary care)
  • 3 - Results abnormal
recg_gprd Resting ECG results (primary care)
  • 2 - Results abnormal- indicative of ischaemia (T-wave changes or ST-depression)
radio_scan_gprd Myocardial perfusion scan results (primary care)
  • 3 - Results abnormal
Codelist version
Codelist authors
Creation date
Warning! Unless explicitly noted otherwise, three-digit ICD10/OPCS4 codes also include all codes below them.
Category (code) Read code Read term CPRD Medcode
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