Cochrane · systematic review · CD015207

Replacing salt with low‐sodium salt substitutes (LSSS) for cardiovascular health in adults, children and pregnant women

Brand, A, Visser, ME, Schoonees, A, et al. · Cochrane Database of Systematic Reviews · 2022 · Cochrane Library

Public HealthAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
20
current version
GRADE rated
15
No studies
5
Included studies
NR
No studies 5 · 25%Ungraded 0 · 0%Very low 7 · 35%Low 1 · 5%Moderate 7 · 35%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Summary of findings table ‐ LSSS intervention compared to regular salt in adults (≥ 18 years) in the general population

Population: adults (≥ 18 years) in the general population
13 questions
OutcomeEffectEvidenceStatus / GRADE
Change in DBP (mmHg)
Summary of findings table ‐ LSSS intervention vs regular salt
no estimate extracted19 studies · 20830 participantsModerate
Downgraded: risk of bias, inconsistency
Change in SBP (mmHg)
Summary of findings table ‐ LSSS intervention vs regular salt
no estimate extracted20 studies · 21414 participantsModerate
Downgraded: risk of bias, inconsistency
Hypertension
Summary of findings table ‐ LSSS intervention vs regular salt
RR 0.97 [0.9, 1.03]1 study · 2566 participantsLow
Downgraded: risk of bias, imprecision
Blood pressure control
Summary of findings table ‐ LSSS intervention vs regular salt
RR 2.12 [1.32, 3.41]2 studies · 253 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Cardiovascular events: various
Summary of findings table ‐ LSSS intervention vs regular salt
RR 1.22 [0.49, 3.04]5 studies · 982 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Cardiovascular events: non‐fatal stroke
Summary of findings table ‐ LSSS intervention vs regular salt
RR 0.9 [0.8, 1.01]3 studies · 21250 participantsModerate
Downgraded: indirectness
Cardiovascular events: non‐fatal acute coronary syndrome (events per 100,000 person‐years)
Summary of findings table ‐ LSSS intervention vs regular salt
Rate ratio 0.7 [0.52, 0.94]1 study · 20995 participantsModerate
Downgraded: indirectness
Cardiovascular mortality (events per 100,000 person‐years)
Summary of findings table ‐ LSSS intervention vs regular salt
Rate ratio 0.77 [0.6, 1]3 studies · 23200 participantsModerate
Downgraded: indirectness
Stroke mortality (events per 100,000 person‐years)
Summary of findings table ‐ LSSS intervention vs regular salt
Rate ratio 0.64 [0.33, 1.25]2 studies · 21423 participantsVery low
Downgraded: imprecision, indirectness
Change in blood potassium (mmol/L)
Summary of findings table ‐ LSSS intervention vs regular salt
no estimate extracted6 studies · 784 participantsModerate
Downgraded: risk of bias
Hyperkalaemia
Summary of findings table ‐ LSSS intervention vs regular salt
RR 1.04 [0.46, 2.38]5 studies · 22849 participantsModerate
Downgraded: risk of bias
Hypokalaemia
Summary of findings table ‐ LSSS intervention vs regular salt
no estimate extracted1 study · 22 participantsVery low
Downgraded: risk of bias, indirectness
Adverse events: other
Summary of findings table ‐ LSSS intervention vs regular salt
no estimate extracted8 studies · 2109 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency

Summary of findings table ‐ LSSS intervention compared to regular salt in children (2 to < 18 years) in the general population

Population: children (2 to < 18 years) in the general population
7 questions
OutcomeEffectEvidenceStatus / GRADE
Change in DBP (mmHg)
Summary of findings table ‐ LSSS intervention vs regular salt
no estimate extracted1 study · 92 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Change in SBP (mmHg)
Summary of findings table ‐ LSSS intervention vs regular salt
no estimate extracted1 study · 92 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Hypertension ‐ not measured
Summary of findings table ‐ LSSS intervention vs regular salt
no estimate extractedNRNo studies
Blood pressure control ‐ not measured
Summary of findings table ‐ LSSS intervention vs regular salt
no estimate extractedNRNo studies
Change in blood potassium (mmol/L) ‐ not measured
Summary of findings table ‐ LSSS intervention vs regular salt
no estimate extractedNRNo studies
Hyperkalaemia ‐ not measured
Summary of findings table ‐ LSSS intervention vs regular salt
no estimate extractedNRNo studies
Hypokalaemia ‐ not measured
Summary of findings table ‐ LSSS intervention vs regular salt
no estimate extractedNRNo studies