Please select the eligibility criteria that correspond to the clinical trial below.
Title: China Rural Health Initiative: High Cardiovascular Risk Management and Salt Reduction in Rural Villages in China -- Two Parallel Large Cluster Randomized Controlled Trials
Brief Summary: Cardiovascular disease is the leading cause of death in China. At the village level, strategies for the control of cardiovascular disease are mostly absent. National clinical guidelines for the management of hypertension and cardiovascular disease are rarely disseminated to, or implemented by, the village primary care providers. Salt reduction has greater potential in rural China than almost anywhere else in the world. Very high levels of salt consumption, very little use of processed food and most dietary salt deriving from home cooking makes the removal of salt from the diet easier, cheaper and more worthwhile than in almost any other setting. The two large-scale cluster-randomized controlled trials proposed here will precisely and reliably define the effect of two highly plausible intervention strategies on important clinical outcomes. The evidence provided by the project will form the basis for policy setting that has the potential to greatly reduce the occurrence of vascular disease in rural China and take an important step towards balancing the rural urban divide in health and healthcare.


Options:
A: Inclusion Criteria:

* Male or female aged 18 years or over
* History of hypertension diagnosed by a health professional - hypertension may be self-reported and antihypertensive drugs may or may not be used for management. There is no entry criterion based upon blood pressure measurements made at the baseline survey
* Eat most of their meals in the home
* Consent to participate

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 known significant renal dysfunction
* Participant or family member has other reason for concern about use of salt substitute
* Participant is not expected to live longer than 6 months from the date of assessment
* Another member of the household is already enrolled in the study
B: 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
C: Inclusion Criteria:

* Physician-diagnosed history of coronary heart disease, ischemic stroke, or hemorrhagic stroke, or
* Older age (50 years or older for men; 60 years or older for women) and having physician-diagnosed Type I or Type II diabetes
* Older age (50 years or older for men; 60 years or older for women) and systolic blood pressure 160 mmHg (note that for simplicity, diastolic blood pressure is not included in the criteria)

Exclusion Criteria:

* none
D: Inclusion Criteria:

1. hospitalization within 1 month due to cerebral infarction or hemorrhage;
2. a modified Rankin Score of 4 or less at the time of discharge;
3. an age of 45 or older; and
4. an agreement to prepare foods with salt provided by the project.

Exclusion Criteria:

1. patients with poor kidney function (glomerular filtration rate\<60 ml/min), secondary hypertension, cancer, or liver diseases;
2. patients with eating disorders;
3. patients taking K-sparing medicines;
4. or patients using salt substitutes.

Answer: C