What do systematic reviews say?

GnRH‐a + estriol vs GnRH‐a ± placebo

The review found no eligible studies for this question.

• Add‐back therapy with GnRH analogues for uterine fibroids 2015 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

GnRH‐a + ipriflavone vs GnRH‐a ± placebo

The review found no eligible studies for this question.

• Add‐back therapy with GnRH analogues for uterine fibroids 2015 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Any pharmaceutical treatment vs placebo or no treatment

• Interventions for heartburn in pregnancy 2015 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

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

Interferon-alpha (topical lozenges) vs placebo

• Interventions for managing oral ulcers in Behçet's disease 2014 · Cochrane All outcomes
  Kilic 2009 described the use of a quality of life assessment tool but did not report any quality of life data.
  1 study · 84 participants
  GRADE not reported

Chinese herbal medicines vs placebo

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

Pulsed electromagnetic field therapy (PEMF) vs placebo

The review found no eligible studies for this question.

• Electrotherapy modalities for adhesive capsulitis (frozen shoulder) 2014 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Low‐level laser therapy vs placebo

The review found no eligible studies for this question.

• Electrotherapy modalities for adhesive capsulitis (frozen shoulder) 2014 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Low‐level laser therapy vs Placebo (sham) laser therapy

The review found no eligible studies for this question.

• Interventions for iatrogenic inferior alveolar and lingual nerve injury 2014 · Cochrane All outcomes
  Results: 'No studies reported on quality of life ...'. Not reported by the included laser trials.
  0 studies
  No studies found

Electrostimulation (device) vs Placebo (sham/placebo device)

The review found no eligible studies for this question.

• Interventions for the management of dry mouth: non‐pharmacological interventions 2013 · Cochrane All outcomes
  no estimate extracted
  0 studies
  No studies found

Acupuncture vs sham

The review found no eligible studies for this question.

• Interventions for the management of dry mouth: non‐pharmacological interventions 2013 · Cochrane All outcomes
  no estimate extracted
  0 studies
  No studies found

Topical NSAIDs vs placebo

The review found no eligible studies for this question.

• Non‐steroidal anti‐inflammatory drugs (NSAIDs) for treating lateral elbow pain in adults 2013 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Oral NSAIDs vs placebo

The review found no eligible studies for this question.

• Non‐steroidal anti‐inflammatory drugs (NSAIDs) for treating lateral elbow pain in adults 2013 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Bee propolis (one 500 mg capsule per day) vs placebo

• Systemic interventions for recurrent aphthous stomatitis (mouth ulcers) 2012 · Cochrane All outcomes

  6 months (minimum)
  Patients in the propolis group self-reported a significant improvement in their quality of life (P=0.03), based on volunteered statements of self-reported improvement.
  1 study · 19 participants
  GRADE not reported

Bromperidol decanoate vs placebo

• Bromperidol decanoate (depot) for schizophrenia 2012 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Flossing plus toothbrushing (self-performed; manual or automated floss) vs Toothbrushing alone

The review found no eligible studies for this question.

• Flossing for the management of periodontal diseases and dental caries in adults 2011 · Cochrane All outcomes
  Not estimable (0 studies). See comment: No included study assessed quality of life as an outcome.
  0 studies
  No studies found

Phenytoin mouthrinse vs placebo

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

• Interventions for treating oral mucositis for patients with cancer receiving treatment 2010 · Cochrane All outcomes

  7 days
  MD -15.10 [-26.04, -4.16]
  1 study · 12 participants
  GRADE not reported

Occlusal adjustment (OA) vs placebo

The review found no eligible studies for this question.

• Occlusal adjustment for treating and preventing temporomandibular joint disorders 2003 · Cochrane All outcomes
  There were no data on psychosocial outcomes, costs or quality of life in any of the trials.
  0 studies
  No studies found

BIFEPRUNOX vs placebo

• Bifeprunox versus placebo for schizophrenia 2016 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Intermittent ICS vs placebo

• Intermittent inhaled corticosteroid therapy versus placebo for persistent asthma in children and adults 2015 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 143 participants
  Low