Cochrane · systematic review · CD010890

Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults with unknown HIV status

van't Hoog, A, Viney, K, Biermann, O, et al. · Cochrane Database of Systematic Reviews · 2022 · Cochrane Library

Infectious DiseasesAMSTAR 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
25
current version
GRADE rated
20
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 5 · 20%Very low 8 · 32%Low 8 · 32%Moderate 0 · 0%High 4 · 16%

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

Cough for two weeks or more

Population: of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for tuberculosis disease. Role of index test: individuals with a positive screening test are offered further confirmatory testing to establish a tuberculosis diagnosis. Reference standards: any one or combination of mycobacterial culture (on solid or liquid medium), sputum smear microscopy, Xpert MTB/RIF, or other nucleic acid amplification test. Study design: cross‐sectional studies. Cough for two weeks or more summary sensitivity (95% CI): 42.1% (36.6 to 47.7); summary specificity (95% CI): 94.4% (92.6 to 95.8)
5 questions
OutcomeEffectEvidenceStatus / GRADE
Index test result
no estimate extracted0 participantsUngraded
True positives (participants with tuberculosis disease)
no estimate extracted2 participantsVery low
Downgraded: risk of bias, inconsistency
False negatives (participants incorrectly classified as not having tuberculosis disease)
no estimate extracted3 participantsVery low
Downgraded: risk of bias, inconsistency
True negatives (participants without tuberculosis disease)
no estimate extracted939 participantsHigh
False positives (participants incorrectly classified as having tuberculosis disease)
no estimate extracted56 participantsHigh

Cough of any duration (any cough)

Population: of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for tuberculosis disease. Role of index test: individuals with a positive screening test are offered further confirmatory testing to establish a tuberculosis diagnosis. Reference standards: any one or combination of mycobacterial culture (on solid or liquid medium), sputum smear microscopy, Xpert MTB/RIF, or other nucleic acid amplification test. Study design: cross‐sectional studies. Cough of any duration summary sensitivity (95% CI): 51.3% (42.8 to 59.7); summary specificity (95% CI): 87.6% (81.6 to 91.8)
5 questions
OutcomeEffectEvidenceStatus / GRADE
Index test result
no estimate extracted0 participantsUngraded
True positives (participants with tuberculosis disease)
no estimate extracted3 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
False negatives (participants incorrectly classified as not having tuberculosis disease)
no estimate extracted2 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
True negatives (participants without tuberculosis disease)
no estimate extracted871 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
False positives (participants incorrectly classified as having tuberculosis disease)
no estimate extracted124 participantsLow
Downgraded: risk of bias, imprecision, inconsistency

Any tuberculosis symptom

Population: of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for tuberculosis disease. Role of index test: individuals with a positive screening test are offered further confirmatory testing to establish a tuberculosis diagnosis. Reference standards: any one or combination of mycobacterial culture (on solid or liquid medium), sputum smear microscopy, Xpert MTB/RIF, or other nucleic acid amplification test. Study design: Cross‐sectional studies. Any tuberculosis symptom summary sensitivity (95% CI): 70.6% (61.7 to 78.2); summary specificity (95% CI): 65.1% (53.3 to 75.4)
5 questions
OutcomeEffectEvidenceStatus / GRADE
Index Test result
no estimate extracted0 participantsUngraded
True positives (participants with tuberculosis disease)
no estimate extracted4 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
False negatives (participants incorrectly classified as not having tuberculosis disease)
no estimate extracted1 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
True negatives (participants without tuberculosis disease)
no estimate extracted648 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
False positives (participants incorrectly classified as having tuberculosis disease)
no estimate extracted347 participantsLow
Downgraded: risk of bias, imprecision, inconsistency

Any CXR abnormality

Population: of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for tuberculosis disease. Role of index test: individuals with a positive screening test are offered further confirmatory testing to establish a tuberculosis diagnosis. Reference standards: any one or combination of mycobacterial culture (on solid or liquid medium), sputum smear microscopy, Xpert MTB/RIF, or other nucleic acid amplification test. Study design: cross‐sectional studies. Any CXR abnormality summary sensitivity (95% CI): 94.7% (92.2 to 96.4); summary specificity (95% CI): 89.1% (85.6 to 91.8)
5 questions
OutcomeEffectEvidenceStatus / GRADE
Index Test result
no estimate extracted0 participantsUngraded
True positives (participants with tuberculosis disease)
no estimate extracted5 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
False negatives (participants incorrectly classified as not having tuberculosis disease)
no estimate extracted0 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
True negatives (participants without tuberculosis disease)
no estimate extracted887 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
False positives (participants incorrectly classified as having tuberculosis disease)
no estimate extracted108 participantsLow
Downgraded: risk of bias, imprecision, inconsistency

CXR abnormalities suggestive of tuberculosis

Population: of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for tuberculosis disease. Role of index test: individuals with a positive screening test are offered further confirmatory testing to establish a tuberculosis diagnosis. Reference standards: any one or combination of mycobacterial culture (on solid or liquid medium), sputum smear microscopy, Xpert MTB/RIF, or other nucleic acid amplification test. Study design: cross‐sectional studies. CXR abnormalities suggestive of tuberculosis summary sensitivity (95% CI): 84.8% (76.7 to 90.4); summary specificity (95% CI): 95.6% (92.6 to 97.4)
5 questions
OutcomeEffectEvidenceStatus / GRADE
Index Test result
no estimate extracted0 participantsUngraded
True positives (participants with tuberculosis disease)
no estimate extracted4 participantsLow
Downgraded: risk of bias, inconsistency
False negatives (participants incorrectly classified as not having tuberculosis disease)
no estimate extracted1 participantsLow
Downgraded: risk of bias, inconsistency
True negatives (participants without tuberculosis disease)
no estimate extracted951 participantsHigh
False positives (participants incorrectly classified as having tuberculosis disease)
no estimate extracted44 participantsHigh