Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,815 questions · 6,211 findings · 638 reviews · Headline outcomes only

No studies found 1,052 · 16.9%GRADE not reported 441 · 7.1%Very low 1,700 · 27.4%Low 1,651 · 26.6%Moderate 1,070 · 17.2%High 297 · 4.8%

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Methotrexate vs placebo

Treatment responsea · children and young people with JIA

Methotrexate may leads to higher treatment responsea(up to 6 months) compared with placebo (low certainty).

1 finding from 1 review

Methotrexate vs placebo

Global well‐being: rated by participants · children and young people with JIA

Methotrexate showed no clear difference in participant global assessment of well‐being(up to 6 months) compared with placebo (low certainty).

1 finding from 1 review

Methotrexate vs placebo

Serious adverse events(up to 6 months) · children and young people with JIA

Methotrexate showed no clear difference in serious adverse events(up to 6 months) compared with placebo (low certainty).

1 finding from 1 review

Methotrexate vs placebo

Withdrawals due to adverse events · children and young people with JIA

Methotrexate showed no clear difference in withdrawals due to adverse events (up to 6 months) compared with placebo (low certainty).

1 finding from 1 review

Methotrexate vs placebo

Disease response · psoriatic arthritis

Methotrexate may leads to higher disease response compared with placebo (low certainty).

1 finding from 1 review