Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,288 questions · 3,354 findings · 516 reviews · Headline outcomes only

No studies found 720 · 21.5%GRADE not reported 164 · 4.9%Very low 950 · 28.3%Low 932 · 27.8%Moderate 434 · 12.9%High 154 · 4.6%

Supplementation with folate vs no intervention, placebo or other micronutrients without folate (neonatal outcomes)

Cleft lip (All) · all women who become pregnant or were 12 or less weeks' pregnant at the time of the intervention

Supplementation with folate showed no clear difference in cleft lip (All) compared with no intervention, placebo or other micronutrients without folate… (low certainty).

1 finding from 1 review

Supplementation with folate vs no intervention, placebo or other micronutrients without folate (neonatal outcomes)

Cleft palate (All) · all women who become pregnant or were 12 or less weeks' pregnant at the time of the intervention

Supplementation with folate showed no clear difference in cleft palate (All) compared with no intervention, placebo or other micronutrients without folate… (low certainty).

1 finding from 1 review

Supplementation with folate vs no intervention, placebo or other micronutrients without folate (neonatal outcomes)

Congenital cardiovascular anomalies (All) · all women who become pregnant or were 12 or less weeks' pregnant at the time of the intervention

Supplementation with folate showed no clear difference in congenital cardiovascular anomalies (All) compared with no intervention, placebo or other micronutrients without folate… (low certainty).

1 finding from 1 review

Supplementation with folate vs no intervention, placebo or other micronutrients without folate (neonatal outcomes)

Other congenital anomalies (All) · all women who become pregnant or were 12 or less weeks' pregnant at the time of the intervention

Supplementation with folate showed no clear difference in other congenital anomalies (All) compared with no intervention, placebo or other micronutrients without folate… (low certainty).

1 finding from 1 review

FAE vs placebo

PASI score (scale range from 0 to 72 (higher score indicates more severe psoriasis)) · psoriasis
1 finding from 1 review

FAE vs MTX

Common nuisance AEs (not leading to treatment discontinuation) · psoriasis

It is very uncertain whether FAE changes common nuisance AEs (not leading to treatment discontinuation) compared with MTX (very low certainty).

1 finding from 1 review

FAE vs MTX

PASI 50 · psoriasis

It is very uncertain whether FAE changes PASI 50 compared with MTX (very low certainty).

1 finding from 1 review

FAE vs MTX

Percentage of participants reaching PASI 75 · psoriasis

It is very uncertain whether FAE changes PASI 75 compared with MTX (very low certainty).

1 finding from 1 review

FAE vs MTX

PASI 90 · psoriasis

It is very uncertain whether FAE changes PASI 90 compared with MTX (very low certainty).

1 finding from 1 review

FAE vs placebo

Common nuisance AEs (not leading to treatment discontinuation) · psoriasis

FAE probably leads to higher common nuisance AEs (not leading to treatment discontinuation) compared with placebo (moderate certainty).

1 finding from 1 review