Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

510 questions · 532 findings · 49 reviews · Headline outcomes only

No studies found 120 · 22.6%GRADE not reported 34 · 6.4%Very low 146 · 27.4%Low 138 · 25.9%Moderate 75 · 14.1%High 19 · 3.6%

Adverse event outcomes for dietary combined with physical activity interventions vs standard‐of‐care therapy

Caesarean section · pregnant women, excluding women already diagnosed with GDM in this pregnancy and those with pre‐existing diabetes mellitus

Combined diet and exercise interventions showed no clear difference in caesarean section compared with standard care (mother) (moderate certainty).

1 finding from 1 review

Adverse event outcomes for dietary combined with physical activity interventions vs standard‐of‐care therapy

Perineal trauma · pregnant women, excluding women already diagnosed with GDM in this pregnancy and those with pre‐existing diabetes mellitus

Combined diet and exercise interventions showed no clear difference in perineal trauma compared with standard care (mother) (moderate certainty).

1 finding from 1 review

Adverse event outcomes for dietary combined with physical activity interventions vs standard‐of‐care therapy

Gestational weight gain · pregnant women, excluding women already diagnosed with GDM in this pregnancy and those with pre‐existing diabetes mellitus

Combined diet and exercise interventions showed no clear difference in gestational weight gain (kg) compared with standard care (mother) (moderate certainty).

1 finding from 1 review

Adverse event outcomes for dietary combined with physical activity interventions vs standard‐of‐care therapy

Perinatal mortality · pregnant women, excluding women already diagnosed with GDM in this pregnancy and those with pre‐existing diabetes mellitus

Combined diet and exercise interventions showed no clear difference in perinatal mortality compared with standard care (child) (low certainty).

1 finding from 1 review

Supportive interventions for enhancing dietary intake vs comparators

All‐cause mortality · malnourished or nutritionally at‐risk adults

Supportive interventions for enhancing dietary intake probably leads to lower all‐cause mortality compared with comparators (moderate certainty).

1 finding from 1 review