What do systematic reviews say?

TENS vs sham TENS

The review found no eligible studies for this question.

• Transcutaneous electrical nerve stimulation (TENS) for neuropathic pain in adults 2017 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Mixed Pulmonary hypertension group 2 ‐ 4 ‐ PDE5i vs placebo

The review found no eligible studies for this question.

• Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Group 4 Pulmonary hypertension due to CTEPH ‐ PDE5i vs placebo

• Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 34 participants
  Low

Group 3 Pulmonary hypertension due to lung disease ‐ PDE5i vs placebo

• Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 238 participants
  Moderate

Group 2 Pulmonary hypertension due to left‐heart disease ‐ PDE5i vs placebo

• Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 52 participants
  Low

Summary of findings: Non‐intensive vs intensive follow‐up

• Follow‐up strategies for women treated for early breast cancer 2016 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 639 participants
  High

Intensification of prophylactic therapy guided by colonoscopy vs intensification guided by clinical recurrence

The review found no eligible studies for this question.

• Colonoscopy‐guided therapy for the prevention of post‐operative recurrence of Crohn’s disease 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Less intensive vs more intensive follow‐up after primary cancer treatment

• Follow‐up strategies following completion of primary cancer treatment in adult cancer survivors 2019 · Cochrane Headline outcomes only
  no estimate extracted
  2742 participants
  Very low

High‐intensity vs moderate‐intensity exercise

• Exercise‐based cardiac rehabilitation in heart transplant recipients 2017 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 16 participants
  Moderate

Ultra‐radical (extensive) surgery vs surgery

The review found no eligible studies for this question.

• Ultra‐radical (extensive) surgery versus standard surgery for the primary cytoreduction of advanced epithelial ovarian… 2022 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Group 1 Pulmonary arterial hypertension ‐ PDE5i vs placebo, on combination therapy

• Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 267 participants
  Moderate

Group 1 Pulmonary arterial hypertension ‐ PDE5i vs ERA

• Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 25 participants
  Low

Group 1 Pulmonary arterial hypertension ‐ PDE5i vs placebo

• Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 163 participants
  GRADE not reported

Low intensity ES plus PFMT vs maximal intensity ES plus PFMT

The review found no eligible studies for this question.

• Electrical stimulation with non‐implanted devices for stress urinary incontinence in women 2017 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

TENS vs sham TENS

The review found no eligible studies for this question.

• Conservative interventions for treating functional daytime urinary incontinence in children 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Induced hypertension vs placebo or no intervention

• Interventions for altering blood pressure in people with acute subarachnoid haemorrhage 2021 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 20 participants
  Very low

Antihypertensive agent vs placebo

The review found no eligible studies for this question.

• Pharmacological interventions for asymptomatic carotid stenosis 2023 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings table for metformin plus intensive diet and exercise vs intensive diet and exercise

The review found no eligible studies for this question.

• Metformin for prevention or delay of type 2 diabetes mellitus and its associated complications in persons at increased… 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Intensive glycaemic control vs conventional glucose control

• Intensive glucose control versus conventional glucose control for type 1 diabetes mellitus 2014 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 1441 participants
  Moderate

Angiotensin receptor neprilysin inhibitors (ARNIs) vs usual care

• Beta‐blockers and inhibitors of the renin‐angiotensin aldosterone system for chronic heart failure with preserved… 2021 · Cochrane Headline outcomes only
  no estimate extracted
  118 participants
  High