Cochrane · systematic review · CD001750

Gonadotrophin‐releasing hormone antagonists for assisted reproductive technology

Al‐Inany, HG, Youssef, MA, Ayeleke, RO, et al. · Cochrane Database of Systematic Reviews · 2016 · Cochrane Library

Gynaecology and Fertility2 versionsAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
6
current version
GRADE rated
6
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 6 · 100%High 0 · 0%

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.

Questions and results

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GnRH antagonist compared to long‐course GnRH agonist for assisted reproductive technology (ART)

Population: women undergoing assisted reproductive technology (ART)
6 questions
OutcomeEffectEvidenceStatus / GRADE
Live birth rate per woman randomised
GnRH antagonist vs long‐course GnRH agonist
OR 1.02 [0.85, 1.23]12 studies · 2303 participantsModerate
Downgraded: publication bias
OHSS per woman randomised (any grade)
GnRH antagonist vs long‐course GnRH agonist
OR 0.61 [0.51, 0.72]36 studies · 7944 participantsModerate
Downgraded: risk of bias
Ongoing pregnancy rate per woman randomised
GnRH antagonist vs long‐course GnRH agonist
OR 0.92 [0.83, 1.01]37 studies · 8311 participantsModerate
Downgraded: risk of bias
Clinical pregnancy rate per woman randomised
GnRH antagonist vs long‐course GnRH agonist
OR 0.91 [0.83, 1]54 studies · 9959 participantsModerate
Downgraded: risk of bias
Miscarriage rate per woman randomised
GnRH antagonist vs long‐course GnRH agonist
OR 1.03 [0.82, 1.29]34 studies · 7082 participantsModerate
Downgraded: risk of bias
Cycle cancellation due to poor ovarian response
GnRH antagonist vs long‐course GnRH agonist
OR 1.32 [1.06, 1.65]25 studies · 5230 participantsModerate
Downgraded: imprecision, inconsistency