Parijs et al Unclear risk High risk Participants: 22.7% (high No (high risk) No (low Unclear risk Not stated (1973) (Intervention (Allocation was High risk risk) risk) (Home BP not able (unclear risk) decided by odd or based on to be calculated Providers: even number; odd/even number due to insufficient High risk manner in which already known by information on numbers were trialist) baseline data in Outcome generated and paper) assessors: given to unclear risk participants not clear) Summary Citation Population Intervention Outcomes Sample size Compliance to Results & design level measured duration sodium target location of relevant to (urinary data) research question Puska et II Adults (aged Participants were Blood pressure 107 (n=72 in 6 weeks All participants: Mean difference (seated after 5 al. 30-50 years), randomised to either: groups 2 and between low Low sodium min rest) (1983), parallel mixed 3) sodium period and 1. low fat diet (25% period: 77 + Finland design normal sodium energy from fat) 5mmol/24hr study and period: [] (p<0.001) hypertensive 2. low salt diet SBP: 0.1mmHg (reduced from Normal sodium 6.48) period: 167 + 8mmol/24hr following advice from
Parijs et al (1973) Unclear risk (Intervention decided by odd or even number; manner in which numbers were generated and given to participants not clear) High risk (Allocation was based on odd/even number already known by trialist) Participants: High risk Providers: High risk Outcome assessors: unclear risk 22.7% (high risk) No (high risk) No (low risk) Unclear risk (Home BP not able to be calculated due to insufficient information on baseline data in paper) Not stated (unclear risk) Summary Citation & location design level of Population Intervention Outcomes measured relevant to research question Sample size duration Compliance to sodium target (urinary data) Results Puska et al. (1983), Finland [] parallel design study II Adults (aged 30-50 years), mixed and hypertensive Participants were randomised to either: 1. low fat diet (25% energy from fat) 2. low salt diet (reduced from following advice from Blood pressure (seated after 5 min rest) 107 (n=72 in groups 2 and 3) 6 weeks All participants: Low sodium period: 77 + 5mmol/24hr (p<0.001) Normal sodium period: 167 + 8mmol/24hr Mean difference between low sodium period and normal sodium period: SBP: 0.1mmHg 6.48)
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