where early for required benefit Ruppert et Unclear risk Unclear risk Participants: 0% (low risk) Not required No (low Yes (low risk) Not stated al. (1993) (randomisation (method of low risk (low risk) risk) (unclear risk) method not concealment of Providers: low stated) allocation not risk described) Outcome assessors: unclear risk Summary table Citation Study Population Intervention Outcomes Sample Compliance to Results & design level measured size sodium target location of relevant to (urinary data) research question
where required early for benefit Ruppert et al. (1993) Unclear risk (randomisation method not stated) Unclear risk (method of concealment of allocation not described) Participants: low risk Providers: low risk Outcome assessors: unclear risk 0% (low risk) Not required (low risk) No (low risk) Yes (low risk) Not stated (unclear risk) Summary table Citation & location Study design level of Population Intervention Outcomes measured relevant to research question Sample size Compliance to sodium target (urinary data) Results