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Evidence found and GRADE certainty

2,805 questions · 2,912 findings · 307 reviews · Headline outcomes only

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No studies found 706 · 24.2%GRADE not reported 133 · 4.6%Very low 786 · 27%Low 696 · 23.9%Moderate 474 · 16.3%High 117 · 4%

Recombinant zoster vaccine vs placebo

Participants with adverse events ‐ potential immune‐mediated disease Clinical or laboratory criteria · healthy older adults aged ≥ 60 years

Recombinant zoster vaccine showed no clear difference in participants with adverse events ‐ potential immune‐mediated… compared with placebo (moderate certainty).

1 finding from 1 review

Recombinant zoster vaccine vs placebo

Participants with adverse events ‐ any local symptom Clinical criteria · healthy older adults aged ≥ 60 years

Recombinant zoster vaccine probably leads to higher participants with adverse events ‐ any local symptomClinical criteria compared with placebo (moderate certainty).

1 finding from 1 review

Recombinant zoster vaccine vs placebo

Dropouts ‐ did not receive second dose Clinical or laboratory criteria · healthy older adults aged ≥ 60 years

Recombinant zoster vaccine probably leads to higher dropouts ‐ did not receive second doseClinical or laboratory criteria compared with placebo (moderate certainty).

1 finding from 1 review

Live zoster vaccine vs placebo

Participants with adverse events Clinical or laboratory criteria · healthy older adults aged ≥ 60 years

Live zoster vaccine probably leads to higher participants with adverse eventsClinical or laboratory criteria compared with placebo (moderate certainty).

1 finding from 1 review

Live zoster vaccine vs placebo

Systemic adverse events at · healthy older adults aged ≥ 60 years

Live zoster vaccine showed no clear difference in participants with adverse events ‐ systemic adverse eventsClinical… compared with placebo (moderate certainty).

1 finding from 1 review

Live zoster vaccine vs placebo

Participants with adverse events ‐ injection site adverse events Clinical criteria · healthy older adults aged ≥ 60 years

Live zoster vaccine probably leads to higher participants with adverse events ‐ injection site adverse… compared with placebo (moderate certainty).

1 finding from 1 review

Live zoster vaccine vs placebo

Dropouts Clinical or laboratory criteria · healthy older adults aged ≥ 60 years

Live zoster vaccine showed no clear difference in dropoutsClinical or laboratory criteria compared with placebo (moderate certainty).

1 finding from 1 review

Recombinant zoster vaccine vs placebo

Participants with adverse events ‐ death Clinical criteria · healthy older adults aged ≥ 60 years

Recombinant zoster vaccine showed no clear difference in participants with adverse events ‐ deathClinical criteria compared with placebo (moderate certainty).

1 finding from 1 review

Condiments/seasonings fortified with iron plus other micronutrients vs condiments/seasonings fortified with other micronutrients except iron

Iron deficiency (as defined by study authors, based on a biomarker of iron status) · population aged 2 years and above (Andersson 2008 ‐ 5‐18 years, Asibey‐Berko 2007 ~ 3 years, Chen Ke 2008 ‐ 2‐6 years, Haas 2014 ‐ women…

Condiments/seasonings fortified with iron plus other micronutrients may leads to lower iron deficiency (as defined by the trialists based on a biomarker of… compared with condiments/seasonings fortified with other micronutrients except iron (low certainty).

1 finding from 1 review

Condiments/seasonings fortified with iron plus other micronutrients vs condiments/seasonings fortified with other micronutrients except iron

Ferritin (µg/L) · population aged 2 years and above (Andersson 2008 ‐ 5‐18 years, Asibey‐Berko 2007 ~ 3 years, Chen Ke 2008 ‐ 2‐6 years, Haas 2014 ‐ women…
1 finding from 1 review

Condiments/seasonings fortified with iron plus other micronutrients vs condiments/seasonings fortified with other micronutrients except iron

Transferrin saturation · population aged 2 years and above (Andersson 2008 ‐ 5‐18 years, Asibey‐Berko 2007 ~ 3 years, Chen Ke 2008 ‐ 2‐6 years, Haas 2014 ‐ women…
1 finding from 1 review

Condiments/seasonings fortified with iron plus other micronutrients vs condiments/seasonings fortified with other micronutrients except iron

Total iron binding capacity · population aged 2 years and above (Andersson 2008 ‐ 5‐18 years, Asibey‐Berko 2007 ~ 3 years, Chen Ke 2008 ‐ 2‐6 years, Haas 2014 ‐ women…
1 finding from 1 review

Condiments/seasonings fortified with iron plus other micronutrients vs condiments/seasonings fortified with other micronutrients except iron

Adverse effects · population aged 2 years and above (Andersson 2008 ‐ 5‐18 years, Asibey‐Berko 2007 ~ 3 years, Chen Ke 2008 ‐ 2‐6 years, Haas 2014 ‐ women…
1 finding from 1 review

Condiments/seasonings fortified with iron vs unfortified condiments/seasonings

Iron deficiency (as defined by study authors, based on a biomarker of iron status) · population aged 2 years and above (Ballot 1989a (C) ‐ > 10 years, Chen 2005 (C) ‐ >3 years; Huo 2002 ‐ 11‐17 years, Longfils 2008‐ 6‐21…

Condiments/seasonings fortified with iron showed no clear difference in iron deficiency (as defined by the trialists based on a biomarker of… compared with unfortified condiments/seasonings (moderate certainty).

1 finding from 1 review