Findings

What do systematic reviews say?

9 questions · 9 findings · 3 reviews · Gynaecology and Fertility

Sort:Best matchNewest Highest certainty Download CSV

No studies found 2 · 22.2%GRADE not reported 0 · 0%Very low 4 · 44.4%Low 2 · 22.2%Moderate 1 · 11.1%High 0 · 0%

Blastocyst‐stage vs cleavage‐stage embryo transfer

Cumulative pregnancy rate (slow freezing) · Patients with subfertility

Blastocyst‐stage may leads to lower cumulative pregnancy rate (slow freezing) compared with cleavage‐stage embryo transfer (low certainty).

1 finding from 1 review

Cleavage‐stage versus blastocyst‐stage embryo transfer in assisted reproductive technology 2022 · Cochrane Headline outcomes only
OR 0.69 [0.48, 0.99]
4 studies · 512 participants
Low

Vitrification vs slow freezing

Live birth · subfertile women undergoing oocyte cryopreservation

The review found no eligible studies for this question.

1 finding from 1 review

Vitrification versus slow freezing for women undergoing oocyte cryopreservation 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Vitrification vs slow freezing

Ongoing pregnancy · subfertile women undergoing oocyte cryopreservation

Vitrification showed no clear difference in ongoing pregnancy rate compared with slow freezing (low certainty).

1 finding from 1 review

Vitrification versus slow freezing for women undergoing oocyte cryopreservation 2014 · Cochrane Headline outcomes only
RR 6.07 [0.86, 43.04]
1 study · 28 participants
Low

Vitrification vs slow freezing

Clinical pregnancy rate · subfertile women undergoing oocyte cryopreservation

Vitrification probably leads to higher clinical pregnancy rate compared with slow freezing (moderate certainty).

1 finding from 1 review

Vitrification versus slow freezing for women undergoing oocyte cryopreservation 2014 · Cochrane Headline outcomes only
RR 3.86 [1.63, 9.11]
2 studies · 106 participants
Moderate

Vitrification vs slow freezing

Adverse events · subfertile women undergoing oocyte cryopreservation

The review found no eligible studies for this question.

1 finding from 1 review

Vitrification versus slow freezing for women undergoing oocyte cryopreservation 2014 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Hyaluronic acid‐selected sperm (HA‐ICSI) vs viscous medium containing HA (SpermSlow)

Live birth rate per woman · assisted reproduction

It is very uncertain whether hyaluronic acid‐selected sperm (HA‐ICSI) changes live birth per woman randomly assigned compared with viscous medium containing HA (SpermSlow) (very low certainty).

1 finding from 1 review

Advanced sperm selection techniques for assisted reproduction 2019 · Cochrane Headline outcomes only
RR 1.13 [0.64, 2.01]
1 study · 100 participants
Very low

Hyaluronic acid‐selected sperm (HA‐ICSI) vs viscous medium containing HA (SpermSlow)

Miscarriage · assisted reproduction

It is very uncertain whether hyaluronic acid‐selected sperm (HA‐ICSI) changes miscarriage per woman randomly assigned compared with viscous medium containing HA (SpermSlow) (very low certainty).

1 finding from 1 review

Advanced sperm selection techniques for assisted reproduction 2019 · Cochrane Headline outcomes only
RR 0.8 [0.23, 2.81]
1 study · 100 participants
Very low

Hyaluronic acid‐selected sperm (HA‐ICSI) vs viscous medium containing HA (SpermSlow)

Miscarriage per clinical pregnancy · assisted reproduction

It is very uncertain whether hyaluronic acid‐selected sperm (HA‐ICSI) changes miscarriage per clinical pregnancy compared with viscous medium containing HA (SpermSlow) (very low certainty).

1 finding from 1 review

Advanced sperm selection techniques for assisted reproduction 2019 · Cochrane Headline outcomes only
RR 0.76 [0.24, 2.44]
1 study · 41 participants
Very low

Hyaluronic acid‐selected sperm (HA‐ICSI) vs viscous medium containing HA (SpermSlow)

Clinical pregnancy · assisted reproduction

It is very uncertain whether hyaluronic acid‐selected sperm (HA‐ICSI) changes clinical pregnancy per woman randomly assigned compared with viscous medium containing HA (SpermSlow) (very low certainty).

1 finding from 1 review

Advanced sperm selection techniques for assisted reproduction 2019 · Cochrane Headline outcomes only
RR 1.05 [0.66, 1.68]
1 study · 100 participants
Very low