Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,587 questions · 5,761 findings · 495 reviews

No studies found 1,011 · 17.5%GRADE not reported 1,797 · 31.2%Very low 1,100 · 19.1%Low 1,052 · 18.3%Moderate 649 · 11.3%High 152 · 2.6%

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Combined oral contraceptive pill vs levonorgestrel intrauterine system

Adverse effects ‐ Any adverse events · heavy menstrual bleeding

It is very uncertain whether combined oral contraceptive pill changes adverse effects ‐ Any adverse events compared with levonorgestrel‐releasing intrauterine system (very low certainty).

1 finding from 1 review

Multinutrient supplements (oral) vs control

Participants with complications (e.g. pressure sore, chest infection) at end of study · Older people undergoing hip fracture aftercare

Multinutrient supplements (oral) may leads to lower participants with complications (e.g. pressure sore, chest… compared with control (low certainty).

1 finding from 1 review

Multinutrient supplements (oral) vs control

Disability (unfavourable outcomes: death, vegetative state, severe disability; GOS 1‐3) at end of scheduled · Older people undergoing hip fracture aftercare

It is very uncertain whether multinutrient supplements (oral) changes unfavourable outcome 7 by end of study compared with control (very low certainty).

1 finding from 1 review

Multinutrient supplements (oral) vs control

Putative side effects of treatment (e.g. vomiting and diarrhoea) · Older people undergoing hip fracture aftercare

It is very uncertain whether multinutrient supplements (oral) changes putative side effects of treatment (e.g. vomiting and diarrhoea) compared with control (very low certainty).

1 finding from 1 review