<qa>  What is the main component of the multi-component interventions?Intervention: The multi-component interventions MCI is comprised of all the following five components: 1 home health education HHE by government community health workers CHWs, plus 2 blood pressure BP monitoring and stepped-up referral to a trained general practitioner GP using a checklist, plus 3 training public and private providers in management of hypertension and using a checklist, plus 4 designating hypertension triage counter and hypertension care coordinators in government clinics, plus 5 a financing model to compensate for additional health services and provide subsides to low income individuals with poorly controlled hypertension. 