China Salt Substitute and Stroke Study "SSaSS"

Active, not recruiting

Phase N/A Results N/A

Eligibility Criteria

Inclusion Criteria

- Disease history
- Prior stroke and/or
- Aged 60 years or over and with uncontrolled high blood pressure (systolic blood pressure >=140 millimeters of mercury (mmHg) at visit if on blood pressure lowering medication; systolic blood pressure>=160 millimeters of mercury (mmHg) if not on blood pressure lowering medication)
- Ownership of a phone by the participant or a household member

Exclusion Criteria

- Participant or family member is using a potassium-sparing diuretic
- Participant or family member is using a potassium supplement
- Participant or family member has serious renal impairment
- Participant or family member has other reason for concern about use of salt substitute
- Participant eats most meals outside the home
- Participant is not expected to live longer than 6 months from the date of assessment as estimated by the village doctor
- Another family member living in the same household has already been included in the study