What do systematic reviews say?

Azathioprine vs no intervention

The review found no eligible studies for this question.

• Pharmacological interventions for primary biliary cholangitis 2017 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Exercise vs no intervention

The review found no eligible studies for this question.

• Exercise for haemophilia 2016 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

SSRIs or SNRIs vs amitriptyline

The review found no eligible studies for this question.

• Selective serotonin reuptake inhibitors (SSRIs) and serotonin‐norepinephrine reuptake inhibitors (SNRIs) for the… 2015 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

SSRIs or SNRIs vs placebo

The review found no eligible studies for this question.

• Selective serotonin reuptake inhibitors (SSRIs) and serotonin‐norepinephrine reuptake inhibitors (SNRIs) for the… 2015 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Chinese herbal medicines vs no intervention

• Chinese herbal medicines for treating osteoporosis 2014 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Technology‐mediated psychoeducation vs usual care

• Information and communication technology in patient education and support for people with schizophrenia 2012 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Systemic corticosteroids plus intranasal steroid/mucolytic/decongestant vs no intervention

The review found no eligible studies for this question.

• Interventions for the treatment of persistent post‐COVID‐19 olfactory dysfunction 2022 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Palmitoylethanolamide and luteolin vs no intervention

The review found no eligible studies for this question.

• Interventions for the treatment of persistent post‐COVID‐19 olfactory dysfunction 2022 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intranasal steroid spray vs placebo or no intervention

The review found no eligible studies for this question.

• Interventions for the prevention of persistent post‐COVID‐19 olfactory dysfunction 2022 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

• Computer‐based diabetes self‐management interventions for adults with type 2 diabetes mellitus 2013 · Cochrane Headline outcomes only
  no estimate extracted
  5 studies · 2113 participants
  Moderate

Non‐absorbable disaccharides vs placebo or no intervention

• Non‐absorbable disaccharides versus placebo/no intervention and lactulose versus lactitol for the prevention and… 2016 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  Very low

Interferon vs no intervention

It is very uncertain whether interferon changes health‐related quality of life (1 week) compared with no intervention (very low certainty).

• Pharmacological interventions for acute hepatitis B infection 2017 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 100 participants
  Very low

Lamivudine vs no intervention

The review found no eligible studies for this question.

• Pharmacological interventions for acute hepatitis B infection 2017 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Virtual reality vs passive intervention (short term)

• Virtual reality for rehabilitation in Parkinson's disease 2016 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 24 participants
  Very low

Virtual reality vs active intervention (short term)

• Virtual reality for rehabilitation in Parkinson's disease 2016 · Cochrane Headline outcomes only
  no estimate extracted
  4 studies · 106 participants
  Very low

Xiongshao capsule (XSC) plus conventional western medicine (CWM) vs conventional western medicine (CWM) plus placebo

The review found no eligible studies for this question.

• Xiongshao for restenosis after percutaneous coronary intervention in patients with coronary heart disease 2013 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Xiongshao capsule (XSC) plus conventional western medicine (CWM) vs Western medicine

The review found no eligible studies for this question.

• Xiongshao for restenosis after percutaneous coronary intervention in patients with coronary heart disease 2013 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Flumecinol vs placebo

• Pharmacological interventions for pruritus in adult palliative care patients 2024 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 50 participants
  Low

Active tDCS plus phonological word‐retrieval training vs sham tDCS plus phonological word‐retrieval training

The review found no eligible studies for this question.

• Non‐pharmacological interventions for improving language and communication in people with primary progressive aphasia 2024 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Active tDCS plus semantic word‐retrieval training vs sham tDCS plus semantic word‐retrieval training

The review found no eligible studies for this question.

• Non‐pharmacological interventions for improving language and communication in people with primary progressive aphasia 2024 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found