Table 4.

Intervention fidelity measures

Fidelity measure	Definition
Home health education (HHE) session delivery rate	Calculated as the total number of three-monthly HHE sessions delivered at the household level using the Community Health Workers Monitoring and Home Health Education Checklist divided by the total number of planned HHE sessions until the study discontinuation/completion, multiplied by 100.
Physician referral rate	Calculated as the total number of times they are referred to trained physicians by CHWs using the General Practitioner Referral Checklist divided by the total number of times participants identified with having poorly controlled BP (SBP ≥ 160 mmHg or DBP ≥ 100 mmHg) during study visits until the study discontinuation/completion, multiplied by 100.
Physician’s evaluation rate	Calculated as the total number of times they are evaluated by trained physicians using the General Practitioner Management Checklist divided by the total number of times participants identified with having poorly controlled BP during study visits until the study discontinuation/completion, multiplied by 100.