Findings

What do systematic reviews say?

7 questions · 7 findings · 1 reviews · Headline outcomes only

No studies found 1 · 14.3%GRADE not reported 0 · 0%Very low 2 · 28.6%Low 2 · 28.6%Moderate 2 · 28.6%High 0 · 0%

Live birth · women with subfertility

Low‐dose aspirin showed no clear difference in live birth compared with placebo or no treatment (moderate certainty).

1 finding from 1 review

Aspirin for in vitro fertilisation 2016 · Cochrane Headline outcomes only
RR 0.91 [0.72, 1.15]
3 studies · 1053 participants
Moderate

Clinical pregnancy · women with subfertility

Low‐dose aspirin showed no clear difference in clinical pregnancy compared with placebo or no treatment (moderate certainty).

1 finding from 1 review

Aspirin for in vitro fertilisation 2016 · Cochrane Headline outcomes only
RR 1.03 [0.91, 1.17]
10 studies · 2142 participants
Moderate

Multiple pregnancy · women with subfertility

Low‐dose aspirin showed no clear difference in multiple pregnancy (on ultrasound) compared with placebo or no treatment (low certainty).

1 finding from 1 review

Aspirin for in vitro fertilisation 2016 · Cochrane Headline outcomes only
RR 0.67 [0.37, 1.25]
2 studies · 656 participants
Low

Miscarriage · women with subfertility

Low‐dose aspirin showed no clear difference in miscarriage rate per woman compared with placebo or no treatment (low certainty).

1 finding from 1 review

Aspirin for in vitro fertilisation 2016 · Cochrane Headline outcomes only
RR 1.1 [0.68, 1.77]
5 studies · 1497 participants
Low

Ectopic pregnancy · women with subfertility

It is very uncertain whether low‐dose aspirin changes ectopic pregnancy compared with placebo or no treatment (very low certainty).

1 finding from 1 review

Aspirin for in vitro fertilisation 2016 · Cochrane Headline outcomes only
RR 1.86 [0.75, 4.63]
3 studies · 1135 participants
Very low

Vaginal bleeding · women with subfertility

It is very uncertain whether low‐dose aspirin changes vaginal bleeding compared with placebo or no treatment (very low certainty).

1 finding from 1 review

Aspirin for in vitro fertilisation 2016 · Cochrane Headline outcomes only
RR 1.01 [0.14, 7.13]
1 study · 487 participants
Very low

Other adverse events · women with subfertility

The review found no eligible studies for this question.

1 finding from 1 review

Aspirin for in vitro fertilisation 2016 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found