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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

1,518 questions in 135 reviews · Infectious Diseases

current versions
No studies 135 · 8.9%Ungraded 150 · 9.9%Very low 350 · 23.1%Low 420 · 27.7%Moderate 321 · 21.1%High 142 · 9.4%

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.

QuestionEffectEvidenceStatus / GRADE
Intervention NR
Treatment failure · treating pulmonary TB
Fixed‐dose combinations of drugs versus single‐drug formulations for treating pulmonary tuberculosis (2016) · Cochrane
RR 1.28 [0.82, 2]7 studies · 3606 participantsModerate
Intervention NR
Relapse · treating pulmonary TB
Fixed‐dose combinations of drugs versus single‐drug formulations for treating pulmonary tuberculosis (2016) · Cochrane
RR 1.28 [1, 1.64]10 studies · 3621 participantsLow
Intervention NR
Death · treating pulmonary TB
Fixed‐dose combinations of drugs versus single‐drug formulations for treating pulmonary tuberculosis (2016) · Cochrane
RR 0.96 [0.67, 1.39]11 studies · 4800 participantsModerate
Intervention NR
Sputum smear or culture conversion at end of treatment · treating pulmonary TB
Fixed‐dose combinations of drugs versus single‐drug formulations for treating pulmonary tuberculosis (2016) · Cochrane
RR 0.99 [0.96, 1.02]7 studies · 2319 participantsHigh
Intervention NR
Serious adverse events · treating pulmonary TB
Fixed‐dose combinations of drugs versus single‐drug formulations for treating pulmonary tuberculosis (2016) · Cochrane
RR 1.45 [0.9, 2.33]6 studies · 3388 participantsModerate
Intervention NR
Adverse events leading to discontinuation of therapy · treating pulmonary TB
Fixed‐dose combinations of drugs versus single‐drug formulations for treating pulmonary tuberculosis (2016) · Cochrane
RR 0.96 [0.56, 1.66]13 studies · 5530 participantsLow
Intervention NR
Combined endpoint of treatment failure, relapse, or death** · treating pulmonary TB
Fixed‐dose combinations of drugs versus single‐drug formulations for treating pulmonary tuberculosis (2016) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Intervention NR
Test result
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
False positives (patients incorrectly classified as having SLID resistance)
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extracted8 studies · 1291 participantsModerate
Intervention NR
Test result
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
True positives (patients correctly diagnosed with XDR‐TB)
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extracted6 studies · 143 participantsLow
Intervention NR
False negatives (patients incorrectly classified as not having XDR‐TB)
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extracted6 studies · 143 participantsLow
Intervention NR
True negatives (patients correctly classified as not having XDR‐TB)
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extracted6 studies · 1277 participantsModerate
Intervention NR
False positives (patients incorrectly classified as having XDR‐TB)
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extracted6 studies · 1277 participantsModerate
Intervention NR
True positives (patients correctly diagnosed with FQ resistance)
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extracted9 studies · 519 participantsModerate
Intervention NR
False negatives (patients incorrectly classified as not having FQ resistance)
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extracted9 studies · 519 participantsModerate
Intervention NR
True negatives (patients correctly classified as not having FQ resistance)
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extracted9 studies · 1252 participantsHigh
Intervention NR
False positives (patients incorrectly classified as having FQ resistance)
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extracted9 studies · 1252 participantsHigh
Intervention NR
Test result
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
True positives (patients correctly diagnosed with SLID resistance)
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extracted8 studies · 348 participantsLow
Intervention NR
False negatives (patients incorrectly classified as not having SLID resistance)
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extracted8 studies · 348 participantsLow
Intervention NR
True negatives (patients correctly classified as not having SLID resistance)
GenoType® MTBDRsl assay for resistance to second‐line anti‐tuberculosis drugs (2016) · Cochrane
no estimate extracted8 studies · 1291 participantsModerate
Directly observed therapy (DOT) vs self‐administered TB treatment
Cure · Patients on TB treatment
Directly observed therapy for treating tuberculosis (2015) · Cochrane
RR 1.08 [0.91, 1.27]5 studies · 1645 participantsModerate
Directly observed therapy (DOT) vs self‐administered TB treatment
Treatment completion · Patients on TB treatment
Directly observed therapy for treating tuberculosis (2015) · Cochrane
RR 1.07 [0.96, 1.19]6 studies · 1839 participantsModerate
Home DOT vs clinic DOT
Cure · Patients with TB treatment
Directly observed therapy for treating tuberculosis (2015) · Cochrane
RR 1.02 [0.88, 1.18]4 studies · 1556 participantsModerate
Home DOT vs clinic DOT
Treatment completion4 · Patients with TB treatment
Directly observed therapy for treating tuberculosis (2015) · Cochrane
RR 1.04 [0.91, 1.17]3 studies · 1029 participantsModerate
Intervention NR
Cure · Patients on TB treatment
Directly observed therapy for treating tuberculosis (2015) · Cochrane
RR 1.02 [0.86, 1.21]2 studies · 1493 participantsModerate
Intervention NR
Treatment completion · Patients on TB treatment
Directly observed therapy for treating tuberculosis (2015) · Cochrane
RR 1.05 [0.9, 1.22]2 studies · 1493 participantsLow
DOT vs self‐administered therapy
Treatment completion · Patients on TB treatment
Directly observed therapy for treating tuberculosis (2015) · Cochrane
RR 1 [0.88, 1.13]1 study · 300 participantsLow
Intervention NR
Diarrhoea episodes · adults and children
Interventions to improve water quality for preventing diarrhoea (2015) · Cochrane
RR 0.77 [0.65, 0.91]14 studies · 30746 participantsLow
Intervention NR
Cure or completion of treatment for active TB · Recipients of TB control services
Incentives and enablers to improve adherence in tuberculosis (2015) · Cochrane
RR 1.04 [0.97, 1.13]2 studies · 4356 participantsLow
Intervention NR
Completion of TB prophylaxis · Recipients of TB control services
Incentives and enablers to improve adherence in tuberculosis (2015) · Cochrane
no estimate extracted3 studies · 869 participantsLow
Intervention NR
Return to clinic to start or continue treatment · Recipients of TB control services
Incentives and enablers to improve adherence in tuberculosis (2015) · Cochrane
RR 1.58 [1.27, 1.96]3 studies · 595 participantsModerate
Intervention NR
Return for tuberculin skin test reading · Recipients of TB control services
Incentives and enablers to improve adherence in tuberculosis (2015) · Cochrane
RR 2.16 [1.41, 3.29]2 studies · 1371 participantsLow
Intervention NR
Vector density · People at risk of cutaneous leishmaniasis (CL) or visceral leishmaniasis (VL)
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
no estimate extracted4 studies · 4 participantsModerate
Intervention NR
Vector density · People at risk of CL or VL
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
no estimate extracted1 study · 1 participantsVery low
Intervention NR
CL cases > 12 months · People at risk of CL or VL
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
RR 0.34 [0.2, 0.57]1 study · 2784 participantsLow
Intervention NR
VL cases > 2 years · People at risk of CL or VL
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Intervention NR
Vector density · People at risk of CL or VL
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Intervention NR
CL cases > 12 months · People at risk of CL or VL
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
RR 0.4 [0.13, 1.2]2 studies · 558 participantsLow
Intervention NR
VL cases > 2 years · People at risk of CL or VL
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Intervention NR
Vector density · People at risk of CL or VL
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Intervention NR
CL cases 12 months · People at risk of CL or VL
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
RR 0.42 [0.13, 1.41]1 study · 3631 participantsVery low
Intervention NR
VL cases > 2 years · People at risk of CL or VL
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
Vector density · People at risk of CL or VL
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
no estimate extracted2 studies · 2 participantsLow
Intervention NR
CL cases > 12 months · People at risk of cutaneous leishmaniasis (CL) or visceral leishmaniasis (VL)
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
RR 0.61 [0.38, 0.97]1 study · 2892 participantsModerate
Intervention NR
CL cases > 12 months · People at risk of CL or VL
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
RR 1.9 [0.98, 3.69]1 study · 1655 participantsLow
Intervention NR
VL cases > 2 years · People at risk of CL or VL
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Intervention NR
VL cases > 2 years · People at risk of cutaneous leishmaniasis (CL) or visceral leishmaniasis (VL)
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Intervention NR
Vector density · People at risk of CL or VL
Vector and reservoir control for preventing leishmaniasis (2015) · Cochrane
no estimate extracted3 studies · 3 participantsLow