What do systematic reviews say?

Oral magnesium pidolate vs placebo or no intervention

The review found no eligible studies for this question.

• Magnesium for treating sickle cell disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Biotin vs placebo

The review found no eligible studies for this question.

• Interventions for infantile seborrhoeic dermatitis (including cradle cap) 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Proprietary products vs placebo

The review found no eligible studies for this question.

• Interventions for infantile seborrhoeic dermatitis (including cradle cap) 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Topical steroid vs comparator

The review found no eligible studies for this question.

• Interventions for infantile seborrhoeic dermatitis (including cradle cap) 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Ceftriaxone vs penicillin G

The review found no eligible studies for this question.

• Antibiotic therapy for adults with neurosyphilis 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

MBSR vs usual care

• Mindfulness‐based stress reduction for women diagnosed with breast cancer 2019 · Cochrane Headline outcomes only
  no estimate extracted
  3 studies · 428 participants
  Low

Respiratory muscle training vs sham training

The review found no eligible studies for this question.

• Respiratory muscle training in children and adults with neuromuscular disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Respiratory muscle training vs no training

The review found no eligible studies for this question.

• Respiratory muscle training in children and adults with neuromuscular disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Respiratory muscle training vs breathing exercises

The review found no eligible studies for this question.

• Respiratory muscle training in children and adults with neuromuscular disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Respiratory muscle training vs breathing exercises

• Respiratory muscle training in children and adults with neuromuscular disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 27 participants
  Very low

Statins vs placebo

Statins led to lower quality of life compared with placebo; GRADE not reported.

• Statins versus placebo for people with chronic obstructive pulmonary disease 2019 · Cochrane Headline outcomes only
  no estimate extracted
  3 studies · 3 participants
  GRADE not reported

Surgical interventions (exploration and decompression / external neurolysis, internal neurolysis, neurorrhaphy / direct repair, neuroma excision, anastomosis, autologous or allograft nerve grafting or tubulization) vs non‐surgical treatment

The review found no eligible studies for this question.

• Surgical interventions for symptomatic mild to moderate knee osteoarthritis 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Subfascial endoscopic perforator vein surgery (SEPS) vs the Linton procedure

The review found no eligible studies for this question.

• Subfascial endoscopic perforator surgery (SEPS) for treating venous leg ulcers 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Subfascial endoscopic perforator vein surgery (SEPS) + saphenous surgery vs saphenous surgery

The review found no eligible studies for this question.

• Subfascial endoscopic perforator surgery (SEPS) for treating venous leg ulcers 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Subfascial endoscopic perforator vein surgery (SEPS) + compression vs compression alone

The review found no eligible studies for this question.

• Subfascial endoscopic perforator surgery (SEPS) for treating venous leg ulcers 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intervention not reported

The review found no eligible studies for this question.

• Computerised cognitive training for maintaining cognitive function in cognitively healthy people in midlife 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings: cycled vs culture‐based antibiotic therapy

The review found no eligible studies for this question.

• Treatments for preventing recurrence of infection with Pseudomonas aeruginosa in people with cystic fibrosis 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Rigid dressings vs soft dressings

The review found no eligible studies for this question.

• Rigid dressings versus soft dressings for transtibial amputations 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Exercise vs control immediately post intervention

The review found no eligible studies for this question.

• Interventions for preventing falls in people with multiple sclerosis 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Telephone support vs non‐telephone support intervention

The review found no eligible studies for this question.

• Telephone interventions, delivered by healthcare professionals, for providing education and psychosocial support for… 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found