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Table 3 Study outcome, outcome measurement and assessment methods

From: Reducing salt intake for prevention of cardiovascular diseases in high-risk patients by advanced health education intervention (RESIP-CVD study), Northern Thailand: study protocol for a cluster randomized trial

Outcome Assessment Outcome measure
Primary Blood pressure Omron HEM-907 IntelliSense professional digital blood pressure monitor
Secondary Individual salt intake estimate/24-hour Overnight urine collection and measurement of urine sodium using the KME-03 (average of 3 successive days’ measurements)
Clinical CVD risk General Framingham score 10-year risk
  CVD incidence Diagnosis of each CVD event and CVD death
  Surrogate outcome Retinal vessel caliber