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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
True negatives (participants without tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted648 participantsLow
Intervention NR
False positives (participants incorrectly classified as having tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted347 participantsLow
Intervention NR
Index Test result · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
True positives (participants with tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted5 participantsVery low
Intervention NR
False negatives (participants incorrectly classified as not having tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted0 participantsVery low
Intervention NR
True negatives (participants without tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted887 participantsLow
Intervention NR
True positives (participants with tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted2 participantsVery low
Intervention NR
False positives (participants incorrectly classified as having tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted108 participantsLow
Intervention NR
Index Test result · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
True positives (participants with tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted4 participantsLow
Intervention NR
False negatives (participants incorrectly classified as not having tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted1 participantsLow
Intervention NR
True negatives (participants without tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted951 participantsHigh
Intervention NR
False positives (participants incorrectly classified as having tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted44 participantsHigh
Intervention NR
False negatives (participants incorrectly classified as not having tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted3 participantsVery low
Intervention NR
True negatives (participants without tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted939 participantsHigh
Intervention NR
False positives (participants incorrectly classified as having tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted56 participantsHigh
Intervention NR
Index test result · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted0 participantsUngraded
Intervention NR
True positives (participants with tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted3 participantsVery low
Intervention NR
False negatives (participants incorrectly classified as not having tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted2 participantsVery low
Intervention NR
True negatives (participants without tuberculosis disease) · of people with HIV‐negative or unknown HIV status who are considered eligible for systematic screening for…
Symptom‐ and chest‐radiography screening for active pulmonary tuberculosis in HIV‐negative adults and adults… (2022) · Cochrane
no estimate extracted871 participantsLow
Water, sanitation, and hygiene (WASH) intervention vs no WASH intervention
Outcome (design) · children and adults
Interventions to improve water, sanitation, and hygiene for preventing soil‐transmitted helminth infection (2022) · Cochrane
no estimate extractedNRNo studies
Water, sanitation, and hygiene (WASH) intervention vs no WASH intervention
Any STH prevalence · children and adults
Interventions to improve water, sanitation, and hygiene for preventing soil‐transmitted helminth infection (2022) · Cochrane
OR 0.86 [0.74, 1.01]14 studies · 36055 participantsModerate
Water, sanitation, and hygiene (WASH) intervention vs no WASH intervention
Ascaris lumbricoides prevalence · children and adults
Interventions to improve water, sanitation, and hygiene for preventing soil‐transmitted helminth infection (2022) · Cochrane
OR 0.87 [0.73, 1.03]11 studies · 25576 participantsModerate
Water, sanitation, and hygiene (WASH) intervention vs no WASH intervention
Trichuris trichiura prevalence · children and adults
Interventions to improve water, sanitation, and hygiene for preventing soil‐transmitted helminth infection (2022) · Cochrane
OR 0.94 [0.77, 1.14]9 studies · 23981 participantsLow
Water, sanitation, and hygiene (WASH) intervention vs no WASH intervention
Hookworm prevalence · children and adults
Interventions to improve water, sanitation, and hygiene for preventing soil‐transmitted helminth infection (2022) · Cochrane
OR 0.88 [0.75, 1.04]9 studies · 24191 participantsModerate
Water, sanitation, and hygiene (WASH) intervention vs no WASH intervention
Strongyloides stercoralis prevalence · children and adults
Interventions to improve water, sanitation, and hygiene for preventing soil‐transmitted helminth infection (2022) · Cochrane
no estimate extractedNRNo studies
Non‐pyrethroid‐like indoor residual spraying (IRS) plus insecticide‐treated nets (ITNs) vs ITNs alone
Malaria incidence · people at risk of malaria
Indoor residual spraying for preventing malaria in communities using insecticide‐treated nets (2022) · Cochrane
Rate ratio 0.86 [0.61, 1.23]323631 participantsLow
Non‐pyrethroid‐like indoor residual spraying (IRS) plus insecticide‐treated nets (ITNs) vs ITNs alone
Malaria parasite prevalence · people at risk of malaria
Indoor residual spraying for preventing malaria in communities using insecticide‐treated nets (2022) · Cochrane
RR 0.61 [0.42, 0.88]16394 participantsHigh
Non‐pyrethroid‐like indoor residual spraying (IRS) plus insecticide‐treated nets (ITNs) vs ITNs alone
EIR · people at risk of malaria
Indoor residual spraying for preventing malaria in communities using insecticide‐treated nets (2022) · Cochrane
no estimate extracted5 participantsVery low
Non‐pyrethroid‐like indoor residual spraying (IRS) plus insecticide‐treated nets (ITNs) vs ITNs alone
Anaemia prevalence · people at risk of malaria
Indoor residual spraying for preventing malaria in communities using insecticide‐treated nets (2022) · Cochrane
RR 0.71 [0.38, 1.31]4288 participantsLow
Pyrethroid‐like indoor residual spraying (IRS) + insecticide‐treated nets (ITNs) vs ITNs alone
Malaria incidence · people at risk of malaria
Indoor residual spraying for preventing malaria in communities using insecticide‐treated nets (2022) · Cochrane
Rate ratio 1.07 [0.8, 1.43]15717 participantsModerate
Pyrethroid‐like indoor residual spraying (IRS) + insecticide‐treated nets (ITNs) vs ITNs alone
Malaria parasite prevalence · people at risk of malaria
Indoor residual spraying for preventing malaria in communities using insecticide‐treated nets (2022) · Cochrane
RR 1.11 [0.86, 1.44]10820 participantsModerate
Pyrethroid‐like indoor residual spraying (IRS) + insecticide‐treated nets (ITNs) vs ITNs alone
EIR · people at risk of malaria
Indoor residual spraying for preventing malaria in communities using insecticide‐treated nets (2022) · Cochrane
no estimate extracted2 participantsVery low
Pyrethroid‐like indoor residual spraying (IRS) + insecticide‐treated nets (ITNs) vs ITNs alone
Anaemia prevalence (haemoglobin < 8 g/dL) · people at risk of malaria
Indoor residual spraying for preventing malaria in communities using insecticide‐treated nets (2022) · Cochrane
RR 1.12 [0.89, 1.4]4186 participantsLow
Intervention NR
Index test: self‐report All participants ≥ 95% adherence threshold Any viral load threshold
Accuracy of measures for antiretroviral adherence in people living with HIV (2022) · Cochrane
no estimate extracted25 studies · 9211 participantsVery low
Intervention NR
Index test: VAS All participants ≥ 95% adherence threshold Any viral load threshold
Accuracy of measures for antiretroviral adherence in people living with HIV (2022) · Cochrane
no estimate extracted11 studies · 4235 participantsVery low
Intervention NR
Index test: tablet counts All participants ≥ 95% adherence threshold Any viral load threshold
Accuracy of measures for antiretroviral adherence in people living with HIV (2022) · Cochrane
no estimate extracted12 studies · 3466 participantsVery low
Intervention NR
Index test: pharmacy records or secondary database All participants ≥95% adherence threshold Any viral load threshold
Accuracy of measures for antiretroviral adherence in people living with HIV (2022) · Cochrane
no estimate extracted6 studies · 2254 participantsVery low
Intervention NR
Index test: electronic monitoring All participants ≥ 95% adherence threshold Any viral load threshold
Accuracy of measures for antiretroviral adherence in people living with HIV (2022) · Cochrane
no estimate extracted3 studies · 186 participantsVery low
Intervention NR
Index test: composite measure All participants Different thresholds* Any viral load threshold
Accuracy of measures for antiretroviral adherence in people living with HIV (2022) · Cochrane
no estimate extracted9 studies · 1513 participantsVery low
Intervention NR
Specimen · children with presumed pulmonary tuberculosis Index tests: Xpert Ultra Role: an initial test Threshold for index…
Xpert MTB/RIF Ultra assay for tuberculosis disease and rifampicin resistance in children (2022) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Sputum · children with presumed pulmonary tuberculosis Index tests: Xpert Ultra Role: an initial test Threshold for index…
Xpert MTB/RIF Ultra assay for tuberculosis disease and rifampicin resistance in children (2022) · Cochrane
no estimate extracted5 studies · 127 participantsHigh
Intervention NR
Gastric aspirate · children with presumed pulmonary tuberculosis Index tests: Xpert Ultra Role: an initial test Threshold for index…
Xpert MTB/RIF Ultra assay for tuberculosis disease and rifampicin resistance in children (2022) · Cochrane
no estimate extracted7 studies · 120 participantsModerate
Intervention NR
Stool · children with presumed pulmonary tuberculosis Index tests: Xpert Ultra Role: an initial test Threshold for index…
Xpert MTB/RIF Ultra assay for tuberculosis disease and rifampicin resistance in children (2022) · Cochrane
no estimate extracted6 studies · 200 participantsModerate
Intervention NR
Nasopharyngeal aspirate · children with presumed pulmonary tuberculosis Index tests: Xpert Ultra Role: an initial test Threshold for index…
Xpert MTB/RIF Ultra assay for tuberculosis disease and rifampicin resistance in children (2022) · Cochrane
no estimate extracted4 studies · 46 participantsVery low
Intervention NR
Specimen · children with presumed pulmonary tuberculosis Index tests: Xpert Ultra Role: an initial test Threshold for index…
Xpert MTB/RIF Ultra assay for tuberculosis disease and rifampicin resistance in children (2022) · Cochrane
no estimate extractedNRNo studies
Intervention NR
All specimens · children with presumed pulmonary tuberculosis Index tests: Xpert Ultra Role: an initial test Threshold for index…
Xpert MTB/RIF Ultra assay for tuberculosis disease and rifampicin resistance in children (2022) · Cochrane
no estimate extracted3 studies · 3 participantsVery low
Intervention NR
Malaria parasite prevalence · children and adults at risk of malaria
House modifications for preventing malaria (2022) · Cochrane
RR 0.68 [0.57, 0.82]5 studies · 5183 participantsModerate
Intervention NR
Anaemia prevalence · children and adults at risk of malaria
House modifications for preventing malaria (2022) · Cochrane
RR 0.7 [0.55, 0.89]3 studies · 3643 participantsHigh
Intervention NR
Clinical malaria incidence · children and adults at risk of malaria
House modifications for preventing malaria (2022) · Cochrane
rate ratio 1.683 studies · 3365 participantsVery low