Outcomes
SECONDARY
The primary outcome measure was a reduction in daily dietary salt intake at 1 month, assessed by measuring 24-hour urine sodium excretion. The secondary outcome measures included changes in salt intake at 3 and 11 months postrandomization (as assessed by measuring 24-hour urine sodium excretion) and BP and kidney function at 1, 3, and 11 months post-randomization (as assessed by blood tests taken at these study visits). For measurement of BPs, all participants were provided with fully automated validated BP monitors (Omron, Kyoto, Japan) to take home and provided with instruction on their use in accordance with UK guidance from NICE.