Cochrane · systematic review · CD009632

Mammography in combination with breast ultrasonography versus mammography for breast cancer screening in women at average risk

Glechner, A, Wagner, G, Mitus, JW, et al. · Cochrane Database of Systematic Reviews · 2023 · Cochrane Library

Breast CancerAMSTAR 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
27
current version
GRADE rated
22
No studies
5
Included studies
NR
No studies 5 · 18.5%Ungraded 0 · 0%Very low 1 · 3.7%Low 4 · 14.8%Moderate 6 · 22.2%High 11 · 40.7%

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

Mammography in combination with breast ultrasonography versus mammography alone for breast cancer screening in mixed populations of women with dense and non‐dense breasts

Population: s of women with dense and non‐dense breasts
12 questions
OutcomeEffectEvidenceStatus / GRADE
Outcomes after 1‐ to 2‐year
Mammography in combination with breast ultrasonography vs mammography alone
no estimate extractedNRNo studies
Breast cancer mortality
Mammography in combination with breast ultrasonography vs mammography alone
no estimate extractedNRNo studies
All‐cause mortality
Mammography in combination with breast ultrasonography vs mammography alone
no estimate extractedNRNo studies
Incremental cancer detection: RCT
Mammography in combination with breast ultrasonography vs mammography alone
RR 1.54 [1.22, 1.94]1 study · 72717 participantsHigh
Incremental cancer detection: cohort studies
Mammography in combination with breast ultrasonography vs mammography alone
RR 1.35 [0.92, 1.98]83469 participantsLow
Downgraded: risk of bias
Incremental detection of invasive cancers: RCT
Mammography in combination with breast ultrasonography vs mammography alone
RR 0.95 [0.82, 1.09]1 study · 301 participantsLow
Downgraded: imprecision
Incremental detection of invasive cancers: cohort studies
Mammography in combination with breast ultrasonography vs mammography alone
RR 1 [0.95, 1.06]571 participantsVery low
Downgraded: risk of bias, imprecision
Interval cancer
Mammography in combination with breast ultrasonography vs mammography alone
RR 0.5 [0.29, 0.89]1 study · 72717 participantsHigh
Lymph node status
Mammography in combination with breast ultrasonography vs mammography alone
RR 0.53 [0.33, 0.86]1 study · 214 participantsModerate
Downgraded: imprecision
False‐positive rate
Mammography in combination with breast ultrasonography vs mammography alone
RR 1.43 [1.37, 1.5]1 study · 70825 participantsHigh
False‐negative rate
Mammography in combination with breast ultrasonography vs mammography alone
RR 0.39 [0.23, 0.66]1 study · 354 participantsModerate
Downgraded: imprecision
Rate of biopsies
Mammography in combination with breast ultrasonography vs mammography alone
RR 2.49 [2.28, 2.72]1 study · 72717 participantsHigh

Mammography in combination with breast ultrasonography versus mammography alone in women with dense breasts

Population: breast cancer screening in women at average risk with dense breasts
8 questions
OutcomeEffectEvidenceStatus / GRADE
Outcomes after 1‐ to 2‐year
Mammography in combination with breast ultrasonography vs mammography alone
no estimate extractedNRNo studies
Incremental cancer detection in women with dense breasts: RCT
Mammography in combination with breast ultrasonography vs mammography alone
RR 1.65 [1, 2.72]1 study · 11390 participantsHigh
Incremental cancer detection in women with dense breasts: cohort studies
Mammography in combination with breast ultrasonography vs mammography alone
RR 1.78 [1.23, 2.56]50327 participantsModerate
Downgraded: risk of bias
Incremental detection of invasive cancers
Mammography in combination with breast ultrasonography vs mammography alone
RR 0.91 [0.67, 1.24]1 study · 65 participantsLow
Downgraded: imprecision
Interval cancer
Mammography in combination with breast ultrasonography vs mammography alone
RR 0.29 [0.08, 1.05]1 study · 11390 participantsHigh
False‐positive rate in women with dense breasts
Mammography in combination with breast ultrasonography vs mammography alone
RR 1.76 [1.58, 1.96]1 study · 11312 participantsHigh
False‐negative rate in women with dense breasts
Mammography in combination with breast ultrasonography vs mammography alone
RR 0.23 [0.07, 0.78]1 study · 78 participantsModerate
Downgraded: imprecision
Biopsy rate in women with dense breasts
Mammography in combination with breast ultrasonography vs mammography alone
RR 2.73 [2.24, 3.34]1 study · 11390 participantsHigh

Mammography in combination with breast ultrasonography versus mammography alone in women with non‐dense breasts

Population: breast cancer screening (non‐dense breasts)
7 questions
OutcomeEffectEvidenceStatus / GRADE
Outcomes after 1‐ to 2‐year
Mammography in combination with breast ultrasonography vs mammography alone
no estimate extractedNRNo studies
Incremental cancer detection for women with non‐dense breasts: RCT
Mammography in combination with breast ultrasonography vs mammography alone
RR 1.93 [1.01, 3.68]1 study · 7823 participantsModerate
Downgraded: imprecision
Incremental cancer detection for women with non‐dense breasts: cohort studies
Mammography in combination with breast ultrasonography vs mammography alone
RR 1.13 [0.85, 1.49]40636 participantsLow
Downgraded: risk of bias
Interval cancer
Mammography in combination with breast ultrasonography vs mammography alone
RR 0.22 [0.05, 1.03]1 study · 7823 participantsHigh
False‐positive rate in women with non‐dense breasts
Mammography in combination with breast ultrasonography vs mammography alone
RR 1.36 [1.18, 1.56]1 study · 7771 participantsHigh
False‐negative rate in women with non‐dense breasts
Mammography in combination with breast ultrasonography vs mammography alone
RR 0.18 [0.04, 0.74]1 study · 52 participantsModerate
Downgraded: imprecision
Biopsy rate in women with non‐dense breasts
Mammography in combination with breast ultrasonography vs mammography alone
RR 2.58 [1.96, 3.4]1 study · 7823 participantsHigh