Gap finder

Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

2,653 questions in 194 reviews · Gynaecology and Fertility

current versions
No studies 531 · 20%Ungraded 76 · 2.9%Very low 826 · 31.1%Low 855 · 32.2%Moderate 341 · 12.9%High 24 · 0.9%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
Cryopreservation vs intra‐venous albumin
Moderate and or severe OHSS · patients with risk of ovarian hyperstimulation syndrome
Embryo freezing for preventing ovarian hyperstimulation syndrome (2007) · Cochrane
OR 5.33 [0.51, 56.24]1 study · 26 participantsVery low
Cryopreservation vs intra‐venous albumin
Nil and or mild OHSS · patients with risk of ovarian hyperstimulation syndrome
Embryo freezing for preventing ovarian hyperstimulation syndrome (2007) · Cochrane
OR 0.38 [0.08, 1.9]1 study · 26 participantsLow
Cryopreservation vs intra‐venous albumin
Clinical pregnancies · patients with risk of ovarian hyperstimulation syndrome
Embryo freezing for preventing ovarian hyperstimulation syndrome (2007) · Cochrane
OR 0.06 [0, 1.17]1 study · 26 participantsLow