Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,004 questions · 1,019 findings · 269 reviews

No studies found 333 · 32.7%GRADE not reported 106 · 10.4%Very low 313 · 30.7%Low 189 · 18.5%Moderate 66 · 6.5%High 12 · 1.2%

Ascorbic acid vs placebo

Serious adverse events · people with fatigue in peripheral neuropathy

Ascorbic acid showed no clear difference in serious adverse events compared with placebo (moderate certainty).

1 finding from 1 review

Acupuncture vs sham

Adverse events · Adults with dry mouth due to radiotherapy (head and neck cancer) or Sjogren's Syndrome
1 finding from 1 review

Prophylactic systemic antibiotics (amoxicillin) vs placebo or no antibiotic

Adverse events · Adults undergoing dental implant placement

Prophylactic systemic antibiotics (amoxicillin) showed no clear difference in adverse events compared with no antibiotics or placebo; GRADE not reported.

1 finding from 1 review

Acetaminophen plus Diphenhydrammine vs placebo (Unit of randomisation: transfusion)

Adverse events · patients with requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions

Acetaminophen plus Diphenhydrammine led to lower adverse events compared with placebo (Unit of randomisation: transfusion); GRADE not reported.

1 finding from 1 review

Acetaminophen plus Diphenhydramine vs placebo

Adverse events · patients with requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions

Acetaminophen plus Diphenhydramine led to lower adverse events compared with placebo; GRADE not reported.

1 finding from 1 review

Calcitonin (salmon calcitonin nasal spray 200 IU/day) vs placebo

Adverse events · Patients with histologically confirmed CGCG in one or both jaws and normal serum calcium and parathyroid hormone (PTH) levels
1 finding from 1 review
  • Adverse events were not described separately for each group. Trialists reported that adverse events were in most patients minimal and consisted of nausea, flushes and some dizziness. One patient had diarrhoea which…
    1 study · 14 participants
    GRADE not reported

Primary surgical intervention (curettage, peripheral osteotomy, or resection) vs Primary non-surgical intervention (intralesional corticosteroids, subcutaneous calcitonin, interferon alpha, or imatinib)

Adverse events · Patients with a pathological diagnosis of central giant cell granuloma (CGCG) of the jaws

The review found no eligible studies for this question.

1 finding from 1 review