Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,149 questions · 1,211 findings · 179 reviews

No studies found 175 · 14.5%GRADE not reported 86 · 7.1%Very low 286 · 23.6%Low 341 · 28.2%Moderate 254 · 21%High 69 · 5.7%

PUFA vs monounsaturated fatty acid (MUFA)

Global impression of deterioration (investigator defined global impression of deterioration) · people with multiple sclerosis

Polyunsaturated fatty acid (PUFA) showed no clear difference in global impression of deterioration (investigator defined global… compared with monounsaturated fatty acid (MUFA) (low certainty).

1 finding from 1 review

Omega‐3 vs omega‐6

Global impression of deterioration (investigator defined global impression of deterioration) · people with multiple sclerosis

Omega‐3 showed no clear difference in global impression of deterioration (investigator defined global… compared with omega‐6 (moderate certainty).

1 finding from 1 review

Intervention not reported

Proportion of participants who experienced operative or postoperative serious adverse events · patients with multiple sclerosis and chronic cerebrospinal venous insufficiency (CCSVI)

The intervention showed no clear difference in proportion of participants who experienced operative or… (moderate certainty).

1 finding from 1 review

Intervention not reported

Proportion of participants who experienced improvement of composite functional endpoint over 12 months · patients with multiple sclerosis and chronic cerebrospinal venous insufficiency (CCSVI)

The intervention showed no clear difference in proportion of participants who experienced improvement of composite… (moderate certainty).

1 finding from 1 review

Intervention not reported

Proportion of participants who experienced new relapses over 12 months · patients with multiple sclerosis and chronic cerebrospinal venous insufficiency (CCSVI)

The intervention showed no clear difference in proportion of participants who experienced new relapses over 12 months (moderate certainty).

1 finding from 1 review

Intramuscular (IM) progesterone vs no treatment or placebo

Preterm birth less than 34 weeks' gestation · Women with a multiple pregnancy

Intramuscular (IM) progesterone may leads to higher preterm birth less than 34 weeks compared with no treatment or placebo (low certainty).

1 finding from 1 review

Intramuscular (IM) progesterone vs no treatment or placebo

Preterm birth less than 28 weeks · Women with a multiple pregnancy

Intramuscular (IM) progesterone showed no clear difference in preterm birth less than 28 weeks compared with no treatment or placebo (moderate certainty).

1 finding from 1 review