Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

401 questions · 403 findings · 75 reviews · Headline outcomes only

No studies found 79 · 19.6%GRADE not reported 18 · 4.5%Very low 91 · 22.6%Low 110 · 27.3%Moderate 79 · 19.6%High 26 · 6.5%

Azithromycin vs placebo or usual care

Clinical worsening: need for invasive mechanical ventilation, or death at up to day 28 · people with moderate to severe disease (WHO scale 4–9); all studies contributing results to the summary of findings table included people…

Azithromycin showed no clear difference in worsening of clinical status: participants with clinical… compared with placebo or standard of care alone (moderate certainty).

1 finding from 1 review

Azithromycin vs placebo or usual care

Clinical improvement: discharged alive ( · people with moderate to severe disease (WHO scale 4–9); all studies contributing results to the summary of findings table included people…

Azithromycin showed no clear difference in improvement of clinical status: participants discharged alive at day… compared with placebo or standard of care alone (moderate certainty).

1 finding from 1 review

Radiotherapy combined with anti‐VEGF vs anti‐VEGF alone

Progression to visual loss (loss of 3 or more lines on logMAR chart) · people with neovascular AMD

Radiotherapy combined with anti‐VEGF probably leads to higher loss of 3 or more lines of best‐corrected visual acuity Measured… compared with anti‐VEGF alone (moderate certainty).

1 finding from 1 review

Radiotherapy combined with anti‐VEGF vs anti‐VEGF alone

Change in visual acuity (logMAR) ‐ 12 months (negative is better) · people with neovascular AMD

Radiotherapy combined with anti‐VEGF showed no clear difference in change in best corrected visual acuity (logMAR units) Measured using… compared with anti‐VEGF alone (low certainty).

1 finding from 1 review

Impulsive lifestyle counselling + treatment‐as‐usual vs usual care

Adverse events: death Assessed by: number of participant deaths between a 3‐ and 9‐month · adults with antisocial personality disorder

It is very uncertain whether impulsive lifestyle counselling + treatment‐as‐usual changes adverse events: death Assessed by: number of participant deaths… compared with treatment‐as‐usual alone (very low certainty).

1 finding from 1 review

Cataract surgery with Hydrus microstent vs cataract surgery alone

Proportion of participants who were medication‐free (not using eye drops) medium‐term · people with cataracts and open angle glaucoma, many of whom had mild or moderate glaucoma, which was well‐controlled with medication

Cataract surgery with Hydrus microstent probably leads to higher proportion of participants who were medication‐free (not using eye… compared with cataract surgery alone (moderate certainty).

1 finding from 1 review

Cataract surgery with Hydrus microstent vs cataract surgery alone

Proportion of participants who required further glaucoma surgery, including laser · people with cataracts and open angle glaucoma, many of whom had mild or moderate glaucoma, which was well‐controlled with medication

Cataract surgery with Hydrus microstent may leads to lower proportion of participants who required further glaucoma surgery,… compared with cataract surgery alone (low certainty).

1 finding from 1 review

PPI plus usual care vs usual care alone or chronic obstructive pulmonary disease

Exacerbations · patients with chronic obstructive pulmonary disease

PPI plus usual care may leads to lower exacerbation rate (participants with one or more) study duration: 12… compared with usual care alone or chronic obstructive pulmonary disease (low certainty).

1 finding from 1 review

Heated humidification + fixed CPAP vs fixed CPAP

Adverse events (machine tolerability outcomes) assessed as number of participants experiencing a blocked nose · adults with a diagnosis of sleep apnoea

Heated humidification + fixed CPAP may leads to lower adverse events (machine tolerability outcomes) assessed as number of… compared with fixed CPAP alone (low certainty).

1 finding from 1 review

IStent in combination with phacoemulsification vs phacoemulsification alone

Proportion of participants who were drop‐free · open‐angle glaucoma

It is very uncertain whether IStent in combination with phacoemulsification changes proportion of participants who were drop‐free compared with phacoemulsification alone (very low certainty).

1 finding from 1 review

WBRT with radiosensitisers (radiosen) vs WBRT

Brain tumour response rates: complete response (CR) and partial response (PR) combinedNo. of participants: 847(6 RCTs) · patients with newly diagnosed multiple brain metastases

WBRT with radiosensitisers (radiosen) showed no clear difference in brain tumour response rates: complete response (CR) and partial… compared with WBRT alone (high certainty).

1 finding from 1 review

WBRT with radiosensitisers (radiosen) vs WBRT

Overall survivalNo. of participants: 2631(8 RCTs) · patients with newly diagnosed multiple brain metastases

WBRT with radiosensitisers (radiosen) showed no clear difference in overall survivalNo. of participants: 2631(8 RCTs) compared with WBRT alone (moderate certainty).

1 finding from 1 review

Fixed‐dose combination aclidinium/formoterol vs aclidinium alone

Exacerbations requiring steroids or antibiotics or both: number of participants · patients with chronic obstructive pulmonary disease

Fixed‐dose combination aclidinium/formoterol showed no clear difference in exacerbations requiring steroids or antibiotics or both: number of… compared with aclidinium alone (moderate certainty).

1 finding from 1 review