Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,973 questions · 3,072 findings · 410 reviews · Headline outcomes only

No studies found 559 · 18.2%GRADE not reported 143 · 4.7%Very low 654 · 21.3%Low 833 · 27.1%Moderate 683 · 22.2%High 200 · 6.5%

Prostacyclin vs control

Improvement in WHO functional class · pulmonary arterial hypertension

Prostacyclin probably leads to higher improvement in WHO functional class compared with control (moderate certainty).

1 finding from 1 review

Selexipag vs placebo

Improvement in WHO functional class · pulmonary arterial hypertension

Selexipag showed no clear difference in improvement in WHO functional class compared with placebo (moderate certainty).

1 finding from 1 review