Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,486 questions · 2,727 findings · 268 reviews

No studies found 600 · 22%GRADE not reported 229 · 8.4%Very low 789 · 28.9%Low 707 · 25.9%Moderate 314 · 11.5%High 88 · 3.2%

Educational intervention vs no educational intervention

Height (cm) · children of complementary feeding age
2 findings from 1 review

Behavioural intervention vs control

Smoking cessation at time of surgery ‐ Intensive behavioural intervention (multiple contacts, initiated at least 4 weeks before surgery) · People awaiting surgery

Behavioural intervention probably leads to higher smoking cessation at time of surgery ‐ Intensive behavioural… compared with control (moderate certainty).

1 finding from 1 review

Behavioural intervention vs control

Smoking cessation at time of surgery ‐ Brief behavioural intervention · People awaiting surgery

Behavioural intervention leads to higher smoking cessation at time of surgery ‐ Brief behavioural intervention compared with control (high certainty).

1 finding from 1 review

Behavioural intervention vs control

Postoperative morbidity: Any complication ‐ Intensive intervention · People awaiting surgery

Behavioural intervention probably leads to lower postoperative morbidity: Any complication ‐ Intensive intervention compared with control (moderate certainty).

1 finding from 1 review

Behavioural intervention vs control

Postoperative morbidity: Any complication ‐ Brief intervention · People awaiting surgery

Behavioural intervention showed no clear difference in postoperative morbidity: Any complication ‐ Brief intervention compared with control (moderate certainty).

1 finding from 1 review