Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

929 questions · 946 findings · 295 reviews · Headline outcomes only

No studies found 150 · 15.9%GRADE not reported 47 · 5%Very low 312 · 33%Low 262 · 27.7%Moderate 138 · 14.6%High 37 · 3.9%

Laser‐assisted in‐situ keratomileusis (LASIK) vs photorefractive keratectomy (PRK)

Lost one or more lines of BCVA · patients with myopia

Laser‐assisted in‐situ keratomileusis (LASIK) showed no clear difference in lost one or more lines of BCVA compared with photorefractive keratectomy (PRK) (low certainty).

1 finding from 1 review

Interleukin‐2 RA induction vs monoclonal antibody induction

Acute rejection Acute rejection grade 3A or more verified by biopsy · heart transplant recipients

Interleukin‐2 RA induction showed no clear difference in acute rejection Acute rejection grade 3A or more verified by biopsy compared with monoclonal antibody induction (low certainty).

1 finding from 1 review

Intervention not reported

Acute rejection Acute rejection grade 3A or more verified by biopsy · heart transplant recipients

The intervention showed no clear difference in acute rejection Acute rejection grade 3A or more verified by biopsy (low certainty).

1 finding from 1 review

Interleukin‐2 RA vs polyclonal antibody induction

Acute rejection Acute rejection grade 3A or more verified by biopsy · heart transplant recipients

Interleukin‐2 RA may leads to higher acute rejection Acute rejection grade 3A or more verified by biopsy compared with polyclonal antibody induction (low certainty).

1 finding from 1 review

Intervention not reported

HIV incidence: CD4 subgroups (350 or more CD4 cells/µL) (observational studies) · Serodiscordant couples

The intervention may leads to lower HIV incidence: CD4 subgroups (350 or more CD4 cells/µL)… (low certainty).

1 finding from 1 review

Intervention not reported

Virologically linked HIV incidence: CD4 subgroups (350 or more CD4 cells/µL) (RCT) · Serodiscordant couples

The intervention leads to lower virologically linked HIV incidence: CD4 subgroups (350 or more CD4… (high certainty).

1 finding from 1 review

Anti‐leukotrienes & ICS vs same‐dose ICS

Number of participants experiencing one or more episode requiring treatment with oral steroids · children with asthma

Anti‐leukotrienes & ICS may leads to lower participants with one or more exacerbations requiring oral… compared with same dose ICS (low certainty).

1 finding from 1 review

Anti‐leukotrienes & ICS vs ICS dose increase

Number of participants experiencing one or more episode requiring treatment with oral steroids · children with asthma

Anti‐leukotrienes & ICS may leads to lower participants with one or more exacerbations requiring oral… compared with higher dose ICS (low certainty).

1 finding from 1 review

Intermittent 'as needed' ICS vs daily ICS

Number of participants experiencing one or more episode requiring treatment with oral steroids · Children and adults with persistent asthma.

Intermittent 'as needed' ICS showed no clear difference in patients with 1 or more exacerbations requiring oral corticosteroids… compared with daily ICS (low certainty).

1 finding from 1 review

Long‐acting beta2‐agonists vs placebo

Participants with one or more serious adverse event (non‐fatal) · patients with chronic obstructive pulmonary disease

Long‐acting beta2‐agonists showed no clear difference in participants with one or more serious adverse event (non‐fatal) compared with placebo (moderate certainty).

1 finding from 1 review

ZUCLOPENTHIXOL ACETATE vs STANDARD DRUG CARE

Global state: 2. Requiring 3 or more injections ‐ over 7 days · patients with acute schizophrenia and similar serious mental illnesses

ZUCLOPENTHIXOL ACETATE may leads to lower global state: 2. Requiring 3 or more injections ‐ over 7 days compared with STANDARD DRUG CARE (low certainty).

1 finding from 1 review