Early-warning Intervention for Heat and Cold in Older Hypertensive Patients: Impact on Blood Pressure and ECG
Conditions
Interventions
- BEHAVIORAL: Issuing health risk warning for a heat waves or cold spells
- DEVICE: A digital heat or cold health risk early warning tool
- DEVICE: Self-monitoring blood pressure and ECG device
- BEHAVIORAL: Perform daily self-monitoring of their BP and ECG
Sponsor
Tiantian Li