Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

473 questions · 480 findings · 60 reviews · Headline outcomes only

No studies found 100 · 20.8%GRADE not reported 3 · 0.6%Very low 104 · 21.7%Low 129 · 26.9%Moderate 106 · 22.1%High 38 · 7.9%

Hydroxyzine 25 mg vs placebo

Withdrawals due to adverse events · patients with chronic spontaneous urticaria

Hydroxyzine 25 mg showed no clear difference in adverse events leading to withdrawal: intermediate‐term duration of… compared with placebo (low certainty).

1 finding from 1 review

Desloratadine 5 to 20 mg vs placebo

Adverse effects requiring withdrawal/discontinuation of study medication · patients with chronic spontaneous urticaria

Desloratadine 5 to 20 mg showed no clear difference in adverse effects leading to withdrawal: intermediate‐term duration of… compared with placebo (low certainty).

1 finding from 1 review

Methotrexate vs placebo

Maintenance of clinical remission · Participants with Crohn's disease in remission

Methotrexate probably leads to higher proportion of patients maintaining clinical remission (high dose… compared with placebo (moderate certainty).

2 findings from 1 review

Intervention not reported

LDL‐Cholesterol rosuvastatin 2.5 mg/day · participantswith normal or abnormal lipid profiles
1 finding from 1 review

Intervention not reported

LDL‐Cholesterol rosuvastatin 5 mg/day · participantswith normal or abnormal lipid profiles
1 finding from 1 review

Probenecid vs allopurinol

Serum urate normalisation ≤ 5 mg/dL (≤ 0.3 mmol/L) ‐ not measured · people with chronic gout

The review found no eligible studies for this question.

1 finding from 1 review

Benzbromarone vs probenecid

Serum urate normalisation ≤ 5 mg/dL (≤ 0.3 mmol/L) · people with chronic gout

Benzbromarone probably leads to higher serum urate normalisation ≤ 5 mg/dL (≤ 0.3 mmol/L) compared with probenecid (moderate certainty).

1 finding from 1 review

STANDARD LOWER DOSE (> 3 to 7.5 mg/day) vs OTHER DOSES

Leaving the study early (2‐10 weeks) vs. standard higher dose (> 7.5‐15 mg/day) · people with the acute phase of schizophrenia

It is very uncertain whether STANDARD LOWER DOSE (> 3 to 7.5 mg/day) changes leaving the study early (2‐10 weeks) vs. standard higher dose (>… compared with OTHER DOSES (very low certainty).

1 finding from 1 review