Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,163 questions · 1,209 findings · 133 reviews · Headline outcomes only

No studies found 176 · 14.6%GRADE not reported 47 · 3.9%Very low 241 · 19.9%Low 323 · 26.7%Moderate 315 · 26.1%High 107 · 8.9%

Corticosteroids vs promethazine

Vomiting · Pregnant women with hyperemesis gravidarum

It is very uncertain whether corticosteroids changes episodes of vomiting 48 hours compared with promethazine (very low certainty).

2 findings from 1 review

Corticosteroids vs promethazine

Intervention side effects: drowsiness 48hrs and 3‐10 days · Pregnant women with hyperemesis gravidarum

Corticosteroids showed no clear difference in intervention side effects: drowsiness 48hrs and 3‐10 days compared with promethazine (low certainty).

1 finding from 1 review

Corticosteroids vs placebo

Pregnancy complications · Pregnant women with hyperemesis gravidarum

It is very uncertain whether corticosteroids changes pregnancy complications compared with placebo (very low certainty).

1 finding from 1 review

Corticosteroids vs placebo

Spontaneous abortion · Pregnant women with hyperemesis gravidarum

It is very uncertain whether corticosteroids changes spontaneous abortion compared with placebo (very low certainty).

1 finding from 1 review

Corticosteroids vs placebo

Perinatal mortality · Pregnant women with hyperemesis gravidarum

It is very uncertain whether corticosteroids changes stillbirth and neonatal death compared with placebo (very low certainty).

1 finding from 1 review

Corticosteroids vs placebo

Congenital abnormalities · Pregnant women with hyperemesis gravidarum

It is very uncertain whether corticosteroids changes congenital abnormalities compared with placebo (very low certainty).

1 finding from 1 review

Corticosteroids vs placebo

Severity, reduction or cessation in nausea/vomiting 2. Number of episodes of emesis 3. Quality of life outcomes · Pregnant women with hyperemesis gravidarum

The review found no eligible studies for this question.

1 finding from 1 review

Corticosteroids vs placebo compared

Serious adverse events (dichotomous data) ‐ suspected or probable pneumonia · critically ill patients

Corticosteroids showed no clear difference in serious adverse events (dichotomous data) ‐ suspected or probable… compared with placebo compared (high certainty).

1 finding from 1 review