Cochrane · systematic review · CD011817

Serum or plasma ferritin concentration as an index of iron deficiency and overload

Garcia-Casal, MN, Pasricha, S-R, Martinez, RX, et al. · Cochrane Database of Systematic Reviews · 2021 · Cochrane Library

Tobacco AddictionAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
12
current version
GRADE rated
8
No studies
4
Included studies
NR
No studies 4 · 33.3%Ungraded 0 · 0%Very low 4 · 33.3%Low 4 · 33.3%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Estimates of accuracy of serum ferritin to assess iron deficiency for apparently healthy (all)

Population: :
3 questions
OutcomeEffectEvidenceStatus / GRADE
Test Accuracy
no estimate extractedNRNo studies
Sensitivity
no estimate extracted5 studies · 143 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency, indirectness
Specificity
no estimate extracted5 studies · 207 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency, indirectness

Estimates of accuracy of serum ferritin to assess iron deficiency for non‐healthy (*adults)

Population: :
3 questions
OutcomeEffectEvidenceStatus / GRADE
Test Accuracy
no estimate extractedNRNo studies
Sensitivity
no estimate extracted63 studies · 1765 participantsLow
Downgraded: risk of bias, inconsistency, indirectness
Specificity
no estimate extracted63 studies · 3277 participantsLow
Downgraded: risk of bias, inconsistency, indirectness

Estimates of accuracy of serum ferritin to assess iron deficiency for non‐healthy (*adults): threshold = 30 µg/L

3 questions
OutcomeEffectEvidenceStatus / GRADE
Test Accuracy
no estimate extractedNRNo studies
Sensitivity
no estimate extracted9 studies · 203 participantsLow
Downgraded: risk of bias, imprecision
Specificity
no estimate extracted9 studies · 309 participantsLow
Downgraded: risk of bias, imprecision

Estimates of accuracy of serum ferritin to assess iron overload (all)

3 questions
OutcomeEffectEvidenceStatus / GRADE
Test Accuracy
no estimate extractedNRNo studies
Sensitivity
no estimate extracted36 studies · 803 participantsVery low
Downgraded: risk of bias, inconsistency, indirectness
Specificity
no estimate extracted36 studies · 1124 participantsVery low
Downgraded: risk of bias, inconsistency, indirectness