Cochrane · systematic review · CD013501

Vegan dietary pattern for the primary and secondary prevention of cardiovascular diseases

Rees, K, Al-Khudairy, L, Takeda, A, et al. · Cochrane Database of Systematic Reviews · 2021 · Cochrane Library

HeartAMSTAR 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
21
current version
GRADE rated
18
No studies
3
Included studies
NR
No studies 3 · 14.3%Ungraded 0 · 0%Very low 7 · 33.3%Low 4 · 19%Moderate 7 · 33.3%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

Vegan dietary intervention compared to no intervention or minimal intervention for the primary prevention of cardiovascular diseases

Population: people at high risk of CVD
7 questions
OutcomeEffectEvidenceStatus / GRADE
CVD events ‐ not reported
Vegan dietary intervention vs no intervention or minimal intervention
no estimate extractedNRNo studies
Total cholesterol (mmol/L), change from baseline
Vegan dietary intervention vs no intervention or minimal intervention
no estimate extracted4 studies · 449 participantsModerate
Downgraded: imprecision
LDL cholesterol (mmol/L), change from baseline
Vegan dietary intervention vs no intervention or minimal intervention
no estimate extracted4 studies · 449 participantsModerate
Downgraded: imprecision
HDL cholesterol (mmol/L), change from baseline
Vegan dietary intervention vs no intervention or minimal intervention
no estimate extracted4 studies · 449 participantsModerate
Downgraded: imprecision
Triglycerides (mmol/L), change from baseline
Vegan dietary intervention vs no intervention or minimal intervention
no estimate extracted4 studies · 449 participantsModerate
Downgraded: imprecision
Systolic blood pressure (mmHg), change from baseline
Vegan dietary intervention vs no intervention or minimal intervention
no estimate extracted3 studies · 374 participantsLow
Downgraded: imprecision
Diastolic blood pressure (mmHg), change from baseline
Vegan dietary intervention vs no intervention or minimal intervention
no estimate extracted3 studies · 372 participantsLow
Downgraded: imprecision

Vegan dietary intervention compared to another dietary intervention for the primary prevention of cardiovascular diseases

Population: people at high risk of CVD
7 questions
OutcomeEffectEvidenceStatus / GRADE
CVD events ‐ not reported
Vegan dietary intervention vs another dietary intervention
no estimate extractedNRNo studies
Total cholesterol (mmol/L), change from baseline
Vegan dietary intervention vs another dietary intervention
no estimate extracted4 studies · 163 participantsLow
Downgraded: imprecision
LDL cholesterol (mmol/L), change from baseline
Vegan dietary intervention vs another dietary intervention
no estimate extracted4 studies · 244 participantsModerate
Downgraded: imprecision
HDL cholesterol (mmol/L), change from baseline
Vegan dietary intervention vs another dietary intervention
no estimate extracted5 studies · 256 participantsModerate
Downgraded: imprecision
Triglycerides (mmol/L), change from baseline
Vegan dietary intervention vs another dietary intervention
no estimate extracted5 studies · 256 participantsModerate
Downgraded: imprecision
Systolic blood pressure (mmHg), change from baseline
Vegan dietary intervention vs another dietary intervention
no estimate extracted5 studies · 247 participantsVery low
Downgraded: imprecision
Diastolic blood pressure (mmHg), change from baseline
Vegan dietary intervention vs another dietary intervention
no estimate extracted5 studies · 247 participantsVery low
Downgraded: risk of bias, imprecision

Vegan dietary intervention compared to another dietary intervention for the secondary prevention of cardiovascular diseases

Population: people with CVD
7 questions
OutcomeEffectEvidenceStatus / GRADE
CVD events ‐ not reported
Vegan dietary intervention vs another dietary intervention
no estimate extractedNRNo studies
Total cholesterol (mmol/L), change from baseline
Vegan dietary intervention vs another dietary intervention
no estimate extracted1 study · 63 participantsVery low
Downgraded: risk of bias, imprecision
LDL cholesterol (mmol/L), change from baseline
Vegan dietary intervention vs another dietary intervention
no estimate extracted1 study · 62 participantsVery low
Downgraded: risk of bias, imprecision
HDL cholesterol (mmol/L), change from baseline
Vegan dietary intervention vs another dietary intervention
no estimate extracted1 study · 63 participantsLow
Downgraded: risk of bias, imprecision
Triglycerides (mmol/L), change from baseline
Vegan dietary intervention vs another dietary intervention
no estimate extracted1 study · 63 participantsVery low
Downgraded: risk of bias, imprecision
Systolic blood pressure (mmHg), change from baseline
Vegan dietary intervention vs another dietary intervention
no estimate extracted1 study · 61 participantsVery low
Downgraded: risk of bias, imprecision
Diastolic blood pressure (mmHg), change from baseline
Vegan dietary intervention vs another dietary intervention
no estimate extracted1 study · 61 participantsVery low
Downgraded: risk of bias, imprecision