Participants
CKD
MAY, SECONDARY, RECRUITMENT
People 18 years or older with CKD with an eGFR >20 ml/min per 1.73 mRecruitment and follow-up were undertaken in centers in primary and secondary care, including two hospital clinics (Oxford University Hospitals and Milton Keynes University Hospital) and four general practice health centers (Hollow Way Medical Center, Oxford; Windrush Medical Center, Witney; Bicester Health Center, Bicester; and Church Street Practice, Wantage). Recruitment took place between August 6, 2012, and May 22, 2014. Recruitment was stopped when the number of participants exceeded the target of 200. Eight participants consented to participate in this study but did not attend for randomization after 1 month of normal routine care nor for further study visits. Two assessments of 24-hour urine sodium content were taken, and their average used as a baseline against which values from multiple further time points were compared.