It is very uncertain whether intrauterine infusion of autologous platelet‐rich plasma changes miscarriage compared with intrauterine infusion of granulocyte colony‐stimulating factor (very low certainty).
The review found no eligible studies for this question.
It is very uncertain whether intrauterine injection of autologous platelet‐rich plasma changes miscarriage compared with no intervention (very low certainty).
It is very uncertain whether intrauterine infusion/injection of autologous platelet‐rich plasma changes miscarriage compared with no intervention or placebo (very low certainty).
Summary of findings table ‐ ICSI showed no clear difference in miscarriage compared with c‐IVF (moderate certainty).
Summary of findings table ‐ Antibiotics showed no clear difference in miscarriage compared with control (no antibiotics) (low certainty).
Summary of findings table ‐ Progestagen showed no clear difference in miscarriage compared with gnRH agonist (low certainty).
It is very uncertain whether day 5 changes miscarriage compared with day 3 embryo biopsy (very low certainty).
It is very uncertain whether preconception lifestyle advice on weight changes miscarriage compared with routine care or attention control (very low certainty).
It is very uncertain whether preconception lifestyle advice on alcohol intake changes miscarriage compared with routine care or attention control (very low certainty).
The review found no eligible studies for this question.
The review found no eligible studies for this question.
It is very uncertain whether oxytocin antagonists changes miscarriage compared with control (very low certainty).
It is very uncertain whether pharmacological intervention changes miscarriage compared with no intervention or placebo (very low certainty).
It is very uncertain whether non‐pharmacological intervention changes miscarriage compared with no intervention or placebo (very low certainty).
The review found no eligible studies for this question.
It is very uncertain whether LOD of one ovary (unilateral) changes miscarriage compared with LOD of both ovaries (bilateral) (very low certainty).
LOD with and without medical ovulation showed no clear difference in miscarriage compared with medical ovulation induction alone (low certainty).
The intervention showed no clear difference in miscarriage (moderate certainty).
The intervention may leads to lower miscarriage (low certainty).