Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,377 questions · 1,433 findings · 149 reviews · Headline outcomes only

No studies found 326 · 22.7%GRADE not reported 87 · 6.1%Very low 440 · 30.7%Low 364 · 25.4%Moderate 190 · 13.3%High 26 · 1.8%

Antenatal pelvic floor muscle training vs control

Incontinence‐specific quality of life · pregnant women who were continent when randomised

Antenatal pelvic floor muscle training showed no clear difference in urinary incontinence‐specific quality of life (ICIQ‐SF)Scale from: 0… compared with control (moderate certainty).

1 finding from 1 review

Group‐based parent training programmes vs control

Emotional and behavioural problems (parent report) Scales used: BSI‐II, BSQ, CAPES, CBCL, CBQ postintervention · young children

Group‐based parent training programmes showed no clear difference in emotional and behavioural problems (parent report) Scales used:… compared with control (low certainty).

1 finding from 1 review

Group‐based parent training programmes vs control

Externalising problems (parent report) Scales used: CBCL, ECBI postintervention · young children

Group‐based parent training programmes showed no clear difference in externalising problems (parent report) Scales used: CBCL, ECBI… compared with control (moderate certainty).

1 finding from 1 review

Group‐based parent training programmes vs control

Externalising problems ‐ hyperactivity‐inattention (parent report) Scales used: HSQ postintervention · young children

It is very uncertain whether group‐based parent training programmes changes externalising problems ‐ hyperactivity‐inattention (parent report)… compared with control (very low certainty).

1 finding from 1 review

Group‐based parent training programmes vs control

Internalising problems (parent report) Scale used: CAPES postintervention · young children

Group‐based parent training programmes showed no clear difference in internalising problems (parent report) Scale used: CAPES… compared with control (low certainty).

1 finding from 1 review

Group‐based parent training programmes vs control

Social skills (parent report) Scale used: VABS postintervention · young children

It is very uncertain whether group‐based parent training programmes changes social skills (parent report) Scale used: VABS postintervention compared with control (very low certainty).

1 finding from 1 review

Group‐based parent training programmes vs control

Parent‐child interaction ‐ negative behaviour (observer report) Scales used: DPICS, IBCS postintervention · young children

Group‐based parent training programmes showed no clear difference in parent‐child interaction ‐ negative behaviour (observer report)… compared with control (moderate certainty).

1 finding from 1 review

Group‐based parent training programmes vs control

Parent‐child interaction ‐ positive behaviour (observer report) Scales used: Attachment Q‐set, DPICS postintervention · young children

Group‐based parent training programmes probably leads to higher parent‐child interaction ‐ positive behaviour (observer report)… compared with control (moderate certainty).

1 finding from 1 review

Preoperative inspiratory muscle training vs usual care, non‐exercise intervention

Postoperative atelectasis original authors’ definitions · adult participants undergoing cardiac and major abdominal surgery

Preoperative inspiratory muscle training may leads to lower postoperative atelectasis original authors’ definitions compared with usual care, non‐exercise intervention (low certainty).

1 finding from 1 review

Preoperative inspiratory muscle training vs usual care, non‐exercise intervention

Postoperative pneumonia original authors’ definitions · adult participants undergoing cardiac and major abdominal surgery

Preoperative inspiratory muscle training probably leads to lower postoperative pneumonia original authors’ definitions compared with usual care, non‐exercise intervention (moderate certainty).

1 finding from 1 review

Preoperative inspiratory muscle training vs usual care, non‐exercise intervention

Mechanical ventilation > 48 hours · adult participants undergoing cardiac and major abdominal surgery

It is very uncertain whether preoperative inspiratory muscle training changes mechanical ventilation > 48 hours compared with usual care, non‐exercise intervention (very low certainty).

1 finding from 1 review

Preoperative inspiratory muscle training vs usual care, non‐exercise intervention

Mortality In the early postoperative period (≤ 30 days) · adult participants undergoing cardiac and major abdominal surgery

It is very uncertain whether preoperative inspiratory muscle training changes all‐cause mortality within 30 days during postoperative period compared with usual care, non‐exercise intervention (very low certainty).

1 finding from 1 review

Attention training vs control

Objective global measures · people with attention deficits following stroke

The review found no eligible studies for this question.

2 findings from 1 review