Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,018 questions · 3,100 findings · 369 reviews · Headline outcomes only

No studies found 774 · 25%GRADE not reported 108 · 3.5%Very low 727 · 23.5%Low 840 · 27.1%Moderate 474 · 15.3%High 177 · 5.7%

H. pylori eradication therapy vs control

Incidence of oesophageal squamous cell carcinoma ‐ modified ITT analysis · healthy asymptomatic H. pylori‐infected individuals

H. pylori eradication therapy showed no clear difference in incidence of oesophageal squamous cell carcinoma ‐ modified ITT… compared with control (moderate certainty).

1 finding from 1 review

Insulin glargine vs NPH insulin

Diabetes‐related complications (1) Fatal MI (2) Fatal stroke (3) Progression in retinopathy (4) Amputations (5) ESRD

It is very uncertain whether insulin glargine changes diabetes‐related complications (1) Fatal MI (2) Fatal stroke (3)… compared with NPH insulin (very low certainty).

1 finding from 1 review

Summary of findings: insulin detemir vs NPH insulin

Diabetes‐related complications (1) Fatal MI (2) Fatal stroke (3) Progression in retinopathy (4) Amputations (5) ESRD

It is very uncertain whether insulin detemir changes diabetes‐related complications (1) Fatal MI (2) Fatal stroke (3)… compared with NPH insulin (very low certainty).

1 finding from 1 review

Intervention not reported

Minor adverse events · for effects on cramps, people (other than pregnant women) with muscle cramps (largely older adults); for adverse events, all populations

The intervention showed no clear difference in minor adverse events (low certainty).

1 finding from 1 review

Glycolic acid (alpha‐hydroxy acid) vs salicylic‐mandelic acid

Minor adverse events · participants with acne

It is very uncertain whether glycolic acid (alpha‐hydroxy acid) changes total number of participants who experienced at least one minor… compared with salicylic‐mandelic acid (very low certainty).

1 finding from 1 review