Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,372 questions · 3,874 findings · 666 reviews

No studies found 431 · 11.1%GRADE not reported 783 · 20.2%Very low 995 · 25.7%Low 909 · 23.5%Moderate 596 · 15.4%High 160 · 4.1%

Higher polyunsaturated fatty acid (PUFA) vs lower PUFA

Major adverse cardiac and cerebrovascular events · people with or without existing CVD, men and women

It is very uncertain whether higher polyunsaturated fatty acid (PUFA) changes major adverse cardiac and cerebrovascular events compared with lower PUFA (very low certainty).

1 finding from 1 review

Higher polyunsaturated fatty acid (PUFA) vs lower PUFA

Cardiovascular events · people with or without existing cardiovascular disease, men and women

Higher polyunsaturated fatty acid (PUFA) showed no clear difference in cardiovascular events compared with lower PUFA (moderate certainty).

1 finding from 1 review

Higher polyunsaturated fatty acid (PUFA) vs lower PUFA

Coronary heart disease mortality – CHD deaths · people with or without existing cardiovascular disease, men and women

Higher polyunsaturated fatty acid (PUFA) showed no clear difference in coronary heart disease mortality compared with lower PUFA (low certainty).

1 finding from 1 review

Higher polyunsaturated fatty acid (PUFA) vs lower PUFA

Atrial fibrillation and arrhythmias · people with or without existing cardiovascular disease, men and women

It is very uncertain whether higher polyunsaturated fatty acid (PUFA) changes atrial fibrillation and arrhythmias compared with lower PUFA (very low certainty).

1 finding from 1 review

Higher BP target (< 150‐160/95‐105 mmHg) vs lower BP target (< 140/90 mmHg)

Serious adverse events: cardiovascular events · older adults with primary hypertension

Higher BP target (< 150‐160/95‐105 mmHg) showed no clear difference in cardiovascular serious adverse events compared with lower BP target (< 140/90 mmHg) (low certainty).

1 finding from 1 review

High‐intensity brief text messaging (SMS) vs low‐intensity brief text messaging

Documenting of matched pregnancy outcome data · Community health care workers, known as Health Surveillance Assistants (HSAs) (n = 156) associated with 30 health facilities.

High‐intensity brief text messaging (SMS) showed no clear difference in documenting of matched pregnancy outcome data compared with low‐intensity brief text messaging (low certainty).

1 finding from 1 review