Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,776 questions · 7,311 findings · 959 reviews · Headline outcomes only

No studies found 1,498 · 20.5%GRADE not reported 303 · 4.1%Very low 1,839 · 25.2%Low 1,991 · 27.2%Moderate 1,277 · 17.5%High 403 · 5.5%

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Antioxidant multivitamin and mineral supplement vs placebo or no treatment

Progression to neovascular AMD · people with AMD

Antioxidant multivitamin and mineral supplement probably leads to lower progression to neovascular AMD compared with placebo or no treatment (moderate certainty).

1 finding from 1 review

Antioxidant multivitamin and mineral supplement vs placebo or no treatment

Progression to geographic atrophy · people with AMD

Antioxidant multivitamin and mineral supplement showed no clear difference in progression to geographic atrophy compared with placebo or no treatment (moderate certainty).

1 finding from 1 review

Antioxidant multivitamin and mineral supplement vs placebo or no treatment

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

Antioxidant multivitamin and mineral supplement probably leads to lower progression to visual loss (loss of 3 or more lines on logMAR chart) compared with placebo or no treatment (moderate certainty).

1 finding from 1 review

Lutein with or without zeaxanthin vs placebo

Progression to late AMD (neovascular AMD, geographic atrophy or both) · people with AMD

Lutein with or without zeaxanthin showed no clear difference in progression to late AMD (neovascular AMD, geographic atrophy, or both) compared with placebo (low certainty).

1 finding from 1 review

Engagement of community leaders vs usual care

Proportion of children who received the vaccine under study (measles) · children under 5 years of age

Engagement of community leaders probably leads to higher proportion of children who received the vaccine under study (measles) compared with routine care (moderate certainty).

1 finding from 1 review