Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

282 questions · 313 findings · 24 reviews

No studies found 89 · 28.4%GRADE not reported 15 · 4.8%Very low 102 · 32.6%Low 75 · 24%Moderate 27 · 8.6%High 5 · 1.6%

LOD vs medical interventions

Harms: GI Upset at 6 months ‐ LOD vs metformin + clomiphene N of participants: 332 (2 RCTs) Harms: OHSS rates at 6 months ‐ LOD vs gonadotrophins N of participants: 33 (1 RCT) · Women with symptoms of PCOS

LOD probably leads to lower harms: GI Upset at 6 months ‐ LOD vs metformin + clomiphene N of… compared with medical interventions (moderate certainty).

1 finding from 1 review

Intervention not reported

Non‐fatal macrovascular outcomes 1. Composite a. Intervention vs metformin [1a. 6 months to 4 years] b. Intervention vs thiazolidinediones [1b. 52 weeks to 4 years] c. Intervention vs meglitinide [1c. 12 months to 15 months]2. Non‐fatal myocardial... · participants with type 2 diabetes mellitus

The intervention may leads to lower non‐fatal macrovascular outcomes 1. Composite a. Intervention vs… (low certainty).

1 finding from 1 review

Intervention not reported

Adverse events 1. All adverse events 2. Drop‐outs due to adverse events 3. Severe hypoglycaemia a. Intervention vs placebo [1a. 24 weeks] [2a. 24 weeks to 56 weeks] b. Intervention vs metformin [1b. 6 months to 4 years] [2b. 24 weeks to 4 years] [... · participants with type 2 diabetes mellitus

The intervention showed no clear difference in adverse events 1. All adverse events 2. Drop‐outs due to adverse… (low certainty).

1 finding from 1 review

Intervention not reported

All‐cause mortality a. Intervention vs metformin [a. 24 weeks to 4 years] b. Intervention vs thiazolidinediones [b. 24 weeks to 4 years] c. Intervention vs insulin [c. 9 months to 10 years] d. Intervention vs incretin‐based control [d. 52 weeks to... · participants with type 2 diabetes mellitus

The intervention showed no clear difference in all‐cause mortality a. Intervention vs metformin [a. 24 weeks to 4… (low certainty).

1 finding from 1 review

Intervention not reported

Cardiovascular mortality a. Intervention vs metformin [a. 24 weeks to 4 years] b. Intervention vs thiazolidinediones [b. 24 weeks to 4 years] c. Intervention vs insulin [c. 9 months to 10 years] d. Intervention vs meglitinide [d. 12 months to 17 m... · participants with type 2 diabetes mellitus

The intervention showed no clear difference in cardiovascular mortality a. Intervention vs metformin [a. 24 weeks… (low certainty).

1 finding from 1 review

Oral contraceptive pill (OCP) vs metformin combined with OCP

Adverse events ‐ Severe · adolescent women with PCOS

It is very uncertain whether oral contraceptive pill (OCP) changes adverse events ‐ Severe compared with metformin combined with OCP (very low certainty).

1 finding from 1 review