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Table 2 Visualization tools used in the intervention arm of the study

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

Visible salt level measurements that participants can see Equipment Frequency of application
1. Salt intake in the last 24 hours Measurement of sodium in overnight collected urine by KME-03 Every monthly visit to the health center
2. Dietary salt content in daily food/ soup Pocket Salt-meter PAL-ES2 Atago, Tokyo On the 1- and 6-month visit