Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

14 questions · 14 findings · 9 reviews

No studies found 1 · 7.1%GRADE not reported 1 · 7.1%Very low 3 · 21.4%Low 4 · 28.6%Moderate 3 · 21.4%High 2 · 14.3%

Lung cancer screening with chest radiography +/‐ sputum cytology vs less intense screening

All‐cause mortality ‐ More frequent chest x‐ray screening versus less frequent screening · Patients with lung cancer

Lung cancer screening with chest radiography +/‐ sputum cytology showed no clear difference in all‐cause mortality ‐ More frequent chest x‐ray screening versus… compared with less intense screening (low certainty).

1 finding from 1 review

Lung cancer screening with chest radiography +/‐ sputum cytology vs less intense screening

All‐cause mortality ‐ Annual chest x‐ray plus 4‐monthly cytology versus annual x‐ray alone · Patients with lung cancer

Lung cancer screening with chest radiography +/‐ sputum cytology showed no clear difference in all‐cause mortality ‐ Annual chest x‐ray plus 4‐monthly cytology… compared with less intense screening (high certainty).

1 finding from 1 review

CHRONIC: ACEi or ARB vs placebo

All‐cause mortality · Patients undergoing any type of surgery under general anaesthesia receiving ACEIs or ARBs perioperatively

It is very uncertain whether ACEIs or ARBs changes all‐cause mortality compared with placebo (very low certainty).

1 finding from 1 review

Perioperative beta‐blockers vs placebo or usual care

Early all‐cause mortality (within 30 days) · adults undergoing non‐cardiac surgery under general anaesthesia (to include: low‐risk, medium‐risk, and high‐risk surgeries)

Perioperative beta‐blockers showed no clear difference in early all‐cause mortality (within 30 days) compared with placebo or standard care (low certainty).

1 finding from 1 review

Nitroglycerin vs no treatment

All‐cause mortality in 30 days post operation · patients (15 years of age and older) undergoing non‐cardiac surgery under any type of anaesthesia

It is very uncertain whether nitroglycerin changes all‐cause mortality in 30 days post operation compared with no treatment (very low certainty).

1 finding from 1 review

Nitroglycerin vs placebo

All‐cause mortality in 30 days post operation · patients (15 years of age and older) undergoing non‐cardiac surgery under any type of anaesthesia

It is very uncertain whether nitroglycerin changes all‐cause mortality in 30 days post operation compared with placebo (very low certainty).

1 finding from 1 review