What do systematic reviews say?

Intervention not reported

• Singing for adults with chronic obstructive pulmonary disease 2017 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 58 participants
  Low

Behavioural intervention vs usual care or no treatment

Behavioural interventions showed no clear difference in health status and quality of life assessed by Bristol Female Lower… compared with usual care or no treatment (low certainty).

• Interventions for treating urinary incontinence after stroke in adults 2019 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 55 participants
  Low

Higher vs lower FiO2 or targets of arterial oxygenation

• Higher versus lower fractions of inspired oxygen or targets of arterial oxygenation for adults admitted to the… 2023 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 1649 participants
  Very low

Acupuncture vs no treatment

The review found no eligible studies for this question.

• Acupuncture for chronic nonspecific low back pain 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Serenoa repens vs placebo or no intervention

Serenoa repens showed no clear difference in quality of lifeMeasured by IPSS‐QoL score (range 0 to 6) compared with placebo or no intervention (high certainty).

• Serenoa repens for the treatment of lower urinary tract symptoms due to benign prostatic enlargement 2023 · Cochrane Headline outcomes only
  no estimate extracted
  5 studies · 1001 participants
  High

Serenoa repens in combination with other phytotherapy vs placebo or no intervention

• Serenoa repens for the treatment of lower urinary tract symptoms due to benign prostatic enlargement 2023 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 265 participants
  Very low

Lutein with or without zeaxanthin vs placebo

• Antioxidant vitamin and mineral supplements for slowing the progression of age‐related macular degeneration 2023 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 308 participants
  Moderate

Vitamin E vs placebo

The review found no eligible studies for this question.

• Antioxidant vitamin and mineral supplements for slowing the progression of age‐related macular degeneration 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Zinc vs placebo

The review found no eligible studies for this question.

• Antioxidant vitamin and mineral supplements for slowing the progression of age‐related macular degeneration 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Antioxidant multivitamin and mineral supplement vs placebo or no treatment

• Antioxidant vitamin and mineral supplements for slowing the progression of age‐related macular degeneration 2023 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 110 participants
  Low

Intervention not reported

The review found no eligible studies for this question.

• Fibrin sealants for the prevention of postoperative pancreatic fistula following pancreatic surgery 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

PAE vs TURP

• Prostatic arterial embolization for the treatment of lower urinary tract symptoms in men with benign prostatic… 2022 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 176 participants
  Low

Duct‐to‐mucosa pancreaticojejunostomy using the modified Blumgart technique vs duct‐to‐mucosa pancreaticojejunostomy using the traditional interrupted technique

The review found no eligible studies for this question.

• Duct‐to‐mucosa versus other types of pancreaticojejunostomy for the prevention of postoperative pancreatic fistula… 2022 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Duct‐to‐mucosa vs invagination pancreaticojejunostomy

The review found no eligible studies for this question.

• Duct‐to‐mucosa versus other types of pancreaticojejunostomy for the prevention of postoperative pancreatic fistula… 2022 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Lay health worker‐led psychosocial interventions vs usual care or no treatment

The review found no eligible studies for this question.

• Primary‐level worker interventions for the care of people living with mental disorders and distress in low‐ and… 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Community professional‐led interventions vs no care

The review found no eligible studies for this question.

• Primary‐level worker interventions for the care of people living with mental disorders and distress in low‐ and… 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Primary health professional‐led psychological interventions vs usual care or no treatment

The review found no eligible studies for this question.

• Primary‐level worker interventions for the care of people living with mental disorders and distress in low‐ and… 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Lay health worker‐led interventions for adult patients with harmful or hazardous alcohol or substance use vs enhanced usual care

The review found no eligible studies for this question.

• Primary‐level worker interventions for the care of people living with mental disorders and distress in low‐ and… 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Lay health worker‐ vs enhanced usual care

The review found no eligible studies for this question.

• Primary‐level worker interventions for the care of people living with mental disorders and distress in low‐ and… 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Lay health worker‐ vs specialist‐led care

The review found no eligible studies for this question.

• Primary‐level worker interventions for the care of people living with mental disorders and distress in low‐ and… 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found