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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
Indoor adult mosquito density · children and adults at risk of malaria
House modifications for preventing malaria (2022) · Cochrane
Rate ratio 0.63 [0.3, 1.3]4 studies · 9894 participantsLow
Intervention NR
Test result · people with presumptive pulmonary tuberculosisRole: an initial testIndex test: Xpert MTB/XDRThreshold for index test:…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extractedNRNo studies
Intervention NR
False positivespeople incorrectly classified as having isoniazid resistance · adults with pulmonary tuberculosis irrespective of rifampicin resistance (i.e. whether or not their rifampicin…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted2 studies · 327 participantsModerate
Intervention NR
Test result · adults with pulmonary tuberculosis irrespective of rifampicin resistance (i.e. whether or not their rifampicin…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extractedNRNo studies
Intervention NR
True positivespeople with fluoroquinolone resistance · adults with pulmonary tuberculosis irrespective of rifampicin resistance (i.e. whether or not their rifampicin…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted2 studies · 381 participantsHigh
Intervention NR
False negativespeople incorrectly classified as not having fluoroquinolone resistance · adults with pulmonary tuberculosis irrespective of rifampicin resistance (i.e. whether or not their rifampicin…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted2 studies · 381 participantsHigh
Intervention NR
True negativespeople without fluoroquinolone resistance · adults with pulmonary tuberculosis irrespective of rifampicin resistance (i.e. whether or not their rifampicin…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted2 studies · 640 participantsModerate
Intervention NR
False positivespeople incorrectly classified as having fluoroquinolone resistance · adults with pulmonary tuberculosis irrespective of rifampicin resistance (i.e. whether or not their rifampicin…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted2 studies · 640 participantsModerate
Intervention NR
Test result · adults with pulmonary tuberculosis with known rifampicin resistance, detected as tuberculosis positive by Xpert…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extractedNRNo studies
Intervention NR
True positivespeople with ethionamide resistance · adults with pulmonary tuberculosis with known rifampicin resistance, detected as tuberculosis positive by Xpert…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted1 study · 167 participantsVery low
Intervention NR
False negativespeople incorrectly classified as not having ethionamide resistance · adults with pulmonary tuberculosis with known rifampicin resistance, detected as tuberculosis positive by Xpert…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted1 study · 167 participantsVery low
Intervention NR
True negativespeople without ethionamide resistance · adults with pulmonary tuberculosis with known rifampicin resistance, detected as tuberculosis positive by Xpert…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted1 study · 267 participantsVery low
Intervention NR
True positivespeople with pulmonary tuberculosis · people with presumptive pulmonary tuberculosisRole: an initial testIndex test: Xpert MTB/XDRThreshold for index test:…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted2 studies · 799 participantsVery low
Intervention NR
False positivespeople incorrectly classified as having ethionamide resistance · adults with pulmonary tuberculosis with known rifampicin resistance, detected as tuberculosis positive by Xpert…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted1 study · 267 participantsVery low
Intervention NR
Test result · adults with pulmonary tuberculosis with known rifampicin resistance, detected as tuberculosis‐positive by Xpert…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extractedNRNo studies
Intervention NR
True positivespeople with amikacin resistance · adults with pulmonary tuberculosis with known rifampicin resistance, detected as tuberculosis‐positive by Xpert…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted1 study · 65 participantsLow
Intervention NR
False negativespeople incorrectly classified as not having amikacin resistance · adults with pulmonary tuberculosis with known rifampicin resistance, detected as tuberculosis‐positive by Xpert…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted1 study · 65 participantsLow
Intervention NR
True negativespeople without amikacin resistance · adults with pulmonary tuberculosis with known rifampicin resistance, detected as tuberculosis‐positive by Xpert…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted1 study · 425 participantsHigh
Intervention NR
False positivespeople incorrectly classified as having amikacin resistance · adults with pulmonary tuberculosis with known rifampicin resistance, detected as tuberculosis‐positive by Xpert…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted1 study · 425 participantsHigh
Intervention NR
False negativespeople incorrectly classified as not having pulmonary tuberculosis · people with presumptive pulmonary tuberculosisRole: an initial testIndex test: Xpert MTB/XDRThreshold for index test:…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted2 studies · 799 participantsVery low
Intervention NR
True negativespeople without pulmonary tuberculosis · people with presumptive pulmonary tuberculosisRole: an initial testIndex test: Xpert MTB/XDRThreshold for index test:…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted2 studies · 429 participantsVery low
Intervention NR
False positivespeople incorrectly classified as having pulmonary tuberculosis · people with presumptive pulmonary tuberculosisRole: an initial testIndex test: Xpert MTB/XDRThreshold for index test:…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted2 studies · 429 participantsVery low
Intervention NR
Test result · adults with pulmonary tuberculosis irrespective of rifampicin resistance (i.e. whether or not their rifampicin…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extractedNRNo studies
Intervention NR
True positivespeople with isoniazid resistance · adults with pulmonary tuberculosis irrespective of rifampicin resistance (i.e. whether or not their rifampicin…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted2 studies · 756 participantsModerate
Intervention NR
False negativespeople incorrectly classified as not having isoniazid resistance · adults with pulmonary tuberculosis irrespective of rifampicin resistance (i.e. whether or not their rifampicin…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted2 studies · 756 participantsModerate
Intervention NR
True negativespeople without isoniazid resistance · adults with pulmonary tuberculosis irrespective of rifampicin resistance (i.e. whether or not their rifampicin…
Xpert MTB/XDR for detection of pulmonary tuberculosis and resistance to isoniazid, fluoroquinolones,… (2022) · Cochrane
no estimate extracted2 studies · 327 participantsModerate
Intervention NR
All‐cause mortality at day 28 · people with moderate to severe disease (WHO scale 4–9); all trials contributing results to the summary of findings…
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
RR 0.6 [0.14, 2.51]3 studies · 230 participantsVery low
Intervention NR
Improvement of clinical status: all initial symptoms resolved (asymptomatic) at day 14 · all trials contributing results to the summary of findings table included people with mild disease (WHO scale 1 to 3)§
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
RR 0.9 [0.6, 1.36]2 studies · 478 participantsLow
Intervention NR
Improvement of clinical status: time to symptom resolution · all trials contributing results to the summary of findings table included people with mild disease (WHO scale 1 to 3)§
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
no estimate extractedNRNo studies
Intervention NR
QoL (physical component) at up to 28 days, measured on the PROMIS Global‐10 scale and normalized to values from 16.2, low QoL, to 67.2, maximum QoL · all trials contributing results to the summary of findings table included people with mild disease (WHO scale 1 to 3)§
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
MD 01 study · 1358 participantsHigh
Intervention NR
QoL (mental component) at up to 28 days, measured on the PROMIS Global‐10 scale and normalized to values from 21.2, low QoL, to 67.6, maximum QoL · all trials contributing results to the summary of findings table included people with mild disease (WHO scale 1 to 3)§
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
MD 01 study · 1358 participantsHigh
Intervention NR
Serious adverse events during the trial period · all trials contributing results to the summary of findings table included people with mild disease (WHO scale 1 to 3)§
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
RR 2.27 [0.62, 8.31]5 studies · 1502 participantsLow
Intervention NR
Any adverse events during the trial period · all trials contributing results to the summary of findings table included people with mild disease (WHO scale 1 to 3)§
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
RR 1.24 [0.87, 1.76]5 studies · 1502 participantsLow
Intervention NR
Viral clearance at day 7 · all trials contributing results to the summary of findings table included people with mild disease (WHO scale 1 to 3)§
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
RR 1.01 [0.69, 1.48]2 studies · 331 participantsLow
Intervention NR
Worsening of clinical status: participants with new need for invasive mechanical ventilation or death at day 28 · people with moderate to severe disease (WHO scale 4–9); all trials contributing results to the summary of findings…
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
RR 0.82 [0.33, 2.04]2 studies · 118 participantsVery low
Intervention NR
Improvement of clinical status: participants discharged alive at day 28 · people with moderate to severe disease (WHO scale 4–9); all trials contributing results to the summary of findings…
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
RR 1.03 [0.78, 1.35]1 study · 73 participantsLow
Intervention NR
QoL at longest · people with moderate to severe disease (WHO scale 4–9); all trials contributing results to the summary of findings…
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Serious adverse events during the trial period · people with moderate to severe disease (WHO scale 4–9); all trials contributing results to the summary of findings…
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
RR 1.55 [0.07, 35.89]2 studies · 197 participantsVery low
Intervention NR
Any adverse events during the trial period · people with moderate to severe disease (WHO scale 4–9); all trials contributing results to the summary of findings…
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
RR 1.04 [0.61, 1.79]3 studies · 228 participantsLow
Intervention NR
Viral clearance at day 7 · people with moderate to severe disease (WHO scale 4–9); all trials contributing results to the summary of findings…
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
RR 1.12 [0.8, 1.58]3 studies · 231 participantsLow
Intervention NR
All‐cause mortality at day 28 · all trials contributing results to the summary of findings table included people with mild disease (WHO scale 1 to 3)§
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
RR 0.77 [0.47, 1.25]6 studies · 2860 participantsModerate
Intervention NR
Worsening of clinical status: admission to hospital or death within 28 days · all trials contributing results to the summary of findings table included people with mild disease (WHO scale 1 to 3)§
Ivermectin for preventing and treating COVID‐19 (2022) · Cochrane
RR 1.09 [0.2, 6.02]2 studies · 590 participantsLow
Albendazole vs placebo or no anthelmintics
Seizure recurrence ‐ all participants · people with neurocysticercosis
Anthelmintics for people with neurocysticercosis (2021) · Cochrane
RR 0.94 [0.78, 1.14]10 studies · 1054 participantsLow
Albendazole vs placebo or no anthelmintics
Seizure recurrence ‐ participants with a single cyst · people with neurocysticercosis
Anthelmintics for people with neurocysticercosis (2021) · Cochrane
RR 0.61 [0.4, 0.91]5 studies · 396 participantsModerate
Albendazole vs placebo or no anthelmintics
Seizure recurrence ‐ participants with multiple (> 1) cysts · people with neurocysticercosis
Anthelmintics for people with neurocysticercosis (2021) · Cochrane
RR 2.05 [1.28, 3.31]2 studies · 321 participantsVery low
Albendazole vs placebo or no anthelmintics
Complete radiological clearance of lesions · people with neurocysticercosis
Anthelmintics for people with neurocysticercosis (2021) · Cochrane
RR 1.22 [1.07, 1.39]13 studies · 1324 participantsModerate
Albendazole vs placebo or no anthelmintics
Evolution of cysts · people with neurocysticercosis
Anthelmintics for people with neurocysticercosis (2021) · Cochrane
RR 1.27 [1.1, 1.47]6 studies · 434 participantsModerate
Intervention NR
Episodes of diarrhoea · children
Hand‐washing promotion for preventing diarrhoea (2021) · Cochrane
IRR 0.7 [0.58, 0.85]9 studies · 4664 participantsHigh
Intervention NR
Episodes of diarrhoea: rate ratios · children up to 15 years of age
Hand‐washing promotion for preventing diarrhoea (2021) · Cochrane
rate ratio 0.71 [0.62, 0.81]9 studies · 15950 participantsModerate
Intervention NR
Episodes of diarrhoea · adults with AIDS
Hand‐washing promotion for preventing diarrhoea (2021) · Cochrane
Mean difference 1.681 study · 148 participantsModerate