Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

90 questions · 90 findings · 9 reviews

No studies found 36 · 40%GRADE not reported 3 · 3.3%Very low 23 · 25.6%Low 23 · 25.6%Moderate 4 · 4.4%High 1 · 1.1%

Preconception lifestyle advice on weight vs usual care or attention control

Adverse events ‐ Gestational diabetes · women with infertility and obesity

It is very uncertain whether preconception lifestyle advice on weight changes adverse events ‐ Gestational diabetes compared with routine care or attention control (very low certainty).

1 finding from 1 review

Lifestyle vs control

Prostatitis symptoms: response defined as a 6‐point decrease in NIH‐CPSI score · participants with chronic prostatitis/chronic pelvic pain syndrome

It is very uncertain whether lifestyle modifications changes prostatitis symptoms: response defined as 6‐point decrease in… compared with control (very low certainty).

1 finding from 1 review