Findings

What do systematic reviews say?

5 questions · 5 findings · 1 reviews · Gynaecology and Fertility

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No studies found 3 · 60%GRADE not reported 0 · 0%Very low 2 · 40%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Preconception lifestyle advice on smoking vs usual care or attention control

Adverse events · smoking people with infertility

The review found no eligible studies for this question.

1 finding from 1 review

Preconception lifestyle advice for people with infertility 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Preconception lifestyle advice on alcohol intake vs usual care or attention control

Adverse events · women with infertility and at‐risk drinking

The review found no eligible studies for this question.

1 finding from 1 review

Preconception lifestyle advice for people with infertility 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Preconception lifestyle advice on a combination of topics vs usual care or attention control

Adverse events · people with infertility

The review found no eligible studies for this question.

1 finding from 1 review

Preconception lifestyle advice for people with infertility 2021 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Preconception lifestyle advice on weight vs usual care or attention control

Adverse events: hypertension · women with infertility and obesity

It is very uncertain whether preconception lifestyle advice on weight changes adverse events ‐ Hypertension compared with routine care or attention control (very low certainty).

1 finding from 1 review

Preconception lifestyle advice for people with infertility 2021 · Cochrane Headline outcomes only
RR 1.07 [0.66, 1.75]
1 study · 317 participants
Very low

Preconception lifestyle advice on weight vs usual care or attention control

Adverse events ‐ Gestational diabetes · women with infertility and obesity

It is very uncertain whether preconception lifestyle advice on weight changes adverse events ‐ Gestational diabetes compared with routine care or attention control (very low certainty).

1 finding from 1 review

Preconception lifestyle advice for people with infertility 2021 · Cochrane Headline outcomes only
RR 0.78 [0.48, 1.26]
1 study · 317 participants
Very low