Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,228 questions · 1,245 findings · 383 reviews

No studies found 403 · 32.4%GRADE not reported 128 · 10.3%Very low 385 · 30.9%Low 232 · 18.6%Moderate 81 · 6.5%High 16 · 1.3%

Intrauterine infusion/injection of autologous platelet‐rich plasma vs placebo or no intervention

Adverse event ‐ multiple pregnancy · women undergoing assisted reproduction

It is very uncertain whether intrauterine infusion/injection of autologous platelet‐rich plasma changes adverse events: multiple pregnancy compared with no intervention or placebo (very low certainty).

1 finding from 1 review

Serenoa repens vs placebo or no intervention

Adverse eventsCumulative incidence · men with lower urinary tract symptoms secondary to benign prostatic obstruction

Serenoa repens showed no clear difference in adverse eventsCumulative incidence compared with placebo or no intervention (moderate certainty).

1 finding from 1 review

Serenoa repens in combination with other phytotherapy vs placebo or no intervention

Adverse eventsCumulative incidence · men with lower urinary tract symptoms secondary to benign prostatic obstruction

Serenoa repens in combination with other phytotherapy showed no clear difference in adverse eventsCumulative incidence compared with placebo or no intervention (low certainty).

1 finding from 1 review