Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,776 questions · 7,311 findings · 959 reviews · Headline outcomes only

No studies found 1,498 · 20.5%GRADE not reported 303 · 4.1%Very low 1,839 · 25.2%Low 1,991 · 27.2%Moderate 1,277 · 17.5%High 403 · 5.5%

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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

Summary of findings: Higher bladder volume vs lower bladder volume

Acute and late GI toxicity (grade 2+) · Men undergoing RT for prostate cancer

Summary of findings: Higher bladder volume showed no clear difference in acute and late GI toxicity (grade 2+) compared with lower bladder volume (low certainty).

1 finding from 1 review

ASA + high‐dose LMWH vs ASA + low‐dose LMWH or UFH

Subcutaneous bruises · people with antiphospholipid antibodies and no history of thrombosis

ASA + high‐dose LMWH showed no clear difference in subcutaneous bruises compared with ASA + low‐dose LMWH or UFH (low certainty).

1 finding from 1 review