Cochrane · systematic review · CD013387

Diagnostic test accuracy and cost‐effectiveness of tests for codeletion of chromosomal arms 1p and 19q in people with glioma

McAleenan, A, Jones, HE, Kernohan, A, et al. · Cochrane Database of Systematic Reviews · 2022 · Cochrane Library

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
21
current version
GRADE rated
19
No studies
2
Included studies
NR
No studies 2 · 9.5%Ungraded 0 · 0%Very low 12 · 57.1%Low 5 · 23.8%Moderate 0 · 0%High 2 · 9.5%

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

Accuracy of tests for 1p/19q codeletion in people with glioma: assuming FISH is the reference standard

Population: adults with glioma Role: 1p/19q status is used for diagnosis, to inform treatment decisions and to give information on prognosis (survival) Index tests: any test Threshold for index tests: any threshold Reference standards: FISH Studies: cross‐sectional studies
11 questions
OutcomeEffectEvidenceStatus / GRADE
Test
no estimate extractedNRNo studies
CISH
no estimate extracted1 study · 38 participantsHigh
PCR‐based LOH
no estimate extracted15 studies · 915 participantsLow
Real‐time PCR
no estimate extracted2 studies · 40 participantsVery low
MLPA
no estimate extracted2 studies · 33 participantsVery low
CGH
no estimate extracted4 studies · 75 participantsLow
aCGH
no estimate extracted3 studies · 39 participantsVery low
SNP array
no estimate extracted6 studies · 111 participantsVery low
NGS
no estimate extracted6 studies · 243 participantsLow
MS
no estimate extracted1 study · 10 participantsVery low
NanoString
no estimate extracted1 study · 16 participantsVery low

Accuracy of tests for 1p/19q codeletion in people with glioma: assuming PCR‐based LOH is the reference standard

Population: adults with glioma Role: 1p/19q status is used for diagnosis, to inform treatment decisions and to give information on prognosis (survival) Index tests: any test Threshold for index tests: any threshold Reference standards: PCR‐based LOH Studies: cross‐sectional studies
10 questions
OutcomeEffectEvidenceStatus / GRADE
Test
no estimate extractedNRNo studies
FISH
no estimate extracted15 studies · 915 participantsLow
Real‐time PCR
no estimate extracted1 study · 10 participantsVery low
MLPA
no estimate extracted1 study · 18 participantsVery low
CGH
no estimate extracted6 studies · 151 participantsLow
aCGH
no estimate extracted4 studies · 57 participantsHigh
SNP array
no estimate extracted2 studies · 33 participantsVery low
NGS
no estimate extracted1 study · 49 participantsVery low
MS
no estimate extracted1 study · 50 participantsVery low
G‐banding
no estimate extracted1 study · 21 participantsVery low