Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

511 questions · 561 findings · 70 reviews · Gynaecology and Fertility

No studies found 91 · 16.2%GRADE not reported 5 · 0.9%Very low 140 · 25%Low 219 · 39%Moderate 98 · 17.5%High 8 · 1.4%

Nifedipine vs placebo

Relief of pain · primary dysmenorrhoea

It is very uncertain whether nifedipine changes pain relief (any) compared with placebo (very low certainty).

1 finding from 1 review

Nifedipine vs placebo

Good or excellent pain relief · primary dysmenorrhoea

It is very uncertain whether nifedipine changes good or excellent pain relief compared with placebo (very low certainty).

1 finding from 1 review

Nifedipine vs placebo

Health‐related quality of life · primary dysmenorrhoea

The review found no eligible studies for this question.

1 finding from 1 review

Nifedipine vs placebo

Total adverse effects · primary dysmenorrhoea

It is very uncertain whether nifedipine changes total adverse effects compared with placebo (very low certainty).

1 finding from 1 review

Nifedipine vs placebo

Bothersome adverse effects · primary dysmenorrhoea

It is very uncertain whether nifedipine changes bothersome adverse effects compared with placebo (very low certainty).

1 finding from 1 review

Nifedipine vs placebo

Requirement for additional medication · primary dysmenorrhoea

It is very uncertain whether nifedipine changes requirement for additional medication compared with placebo (very low certainty).

1 finding from 1 review

Hydroflotation agents vs no hydroflotation agents (or placebo)

Incidence of adhesions at second‐look laparoscopy · women having gynaecological surgery

Hydroflotation agents leads to lower incidence of adhesions at second‐look laparoscopy compared with no hydroflotation agents (or placebo) (high certainty).

1 finding from 1 review