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Evidence found and GRADE certainty

4,808 questions · 8,953 findings · 827 reviews · Headline outcomes only

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No studies found 1,891 · 21.1%GRADE not reported 380 · 4.2%Very low 2,100 · 23.5%Low 2,449 · 27.4%Moderate 1,684 · 18.8%High 449 · 5%

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EGFR tyrosine kinase inhibitor (TKI) vs observation

Progression‐free survival · maintenance treatment of epithelial ovarian cancer after first‐line chemotherapy

It is very uncertain whether EGFR tyrosine kinase inhibitor (TKI) changes progression‐free survival compared with observation alone (very low certainty).

1 finding from 1 review

Evening vs morning dosing regimen

All‐cause mortality · adults with primary (essential) hypertension whose systolic or diastolic (or both) blood pressure levels were 130/80 mmHg or greater

It is very uncertain whether evening changes all‐cause mortality compared with morning dosing regimen (very low certainty).

1 finding from 1 review

Evening vs morning dosing regimen

Serious adverse events · adults with primary (essential) hypertension whose systolic or diastolic (or both) blood pressure levels were 130/80 mmHg or greater

It is very uncertain whether evening changes serious adverse events compared with morning dosing regimen (very low certainty).

1 finding from 1 review

Evening vs morning dosing regimen

Overall adverse events · adults with primary (essential) hypertension whose systolic or diastolic (or both) blood pressure levels were 130/80 mmHg or greater

It is very uncertain whether evening changes overall adverse events compared with morning dosing regimen (very low certainty).

1 finding from 1 review

Evening vs morning dosing regimen

Withdrawals due to adverse events · adults with primary (essential) hypertension whose systolic or diastolic (or both) blood pressure levels were 130/80 mmHg or greater

It is very uncertain whether evening changes withdrawals from treatment due to adverse events compared with morning dosing regimen (very low certainty).

1 finding from 1 review

Immune‐enhancing supplements (oral or enteral) vs usual care or control

Infectious complications · people undergoing gastrointestinal surgery

Immune‐enhancing supplements (oral or enteral) showed no clear difference in infectious complications recorded up to 30 days postdischarge compared with usual care or control (low certainty).

1 finding from 1 review