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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
Fluoroquinolone plus standard regimen vs standard regimen alone
Relapse · Patients with presumed drug‐sensitive TB
Fluoroquinolones for treating tuberculosis (presumed drug‐sensitive) (2013) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Fluoroquinolone substitution for isoniazid in a standard six month regimen vs standard regimen
Serious adverse events · Patients with presumed drug‐sensitive TB
Fluoroquinolones for treating tuberculosis (presumed drug‐sensitive) (2013) · Cochrane
RR 1.1 [0.43, 2.8]1 study · 433 participantsLow
Fluoroquinolone substitution for isoniazid in a standard six month regimen vs standard regimen
One or more adverse event · Patients with presumed drug‐sensitive TB
Fluoroquinolones for treating tuberculosis (presumed drug‐sensitive) (2013) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Fluoroquinolone plus standard regimen vs standard regimen alone
Death from any cause · Patients with presumed drug‐sensitive TB
Fluoroquinolones for treating tuberculosis (presumed drug‐sensitive) (2013) · Cochrane
RR 0.27 [0.03, 2.47]1 study · 174 participantsVery low
Fluoroquinolone plus standard regimen vs standard regimen alone
TB‐related death · Patients with presumed drug‐sensitive TB
Fluoroquinolones for treating tuberculosis (presumed drug‐sensitive) (2013) · Cochrane
RR 0.8 [0.05, 12.4]1 study · 174 participantsVery low
Fluoroquinolone plus standard regimen vs standard regimen alone
Sputum culture conversion at 8 weeks · Patients with presumed drug‐sensitive TB
Fluoroquinolones for treating tuberculosis (presumed drug‐sensitive) (2013) · Cochrane
RR 0.98 [0.91, 1.07]1 study · 174 participantsVery low
Fluoroquinolone plus standard regimen vs standard regimen alone
Serious adverse events · Patients with presumed drug‐sensitive TB
Fluoroquinolones for treating tuberculosis (presumed drug‐sensitive) (2013) · Cochrane
RR 0.85 [0.4, 1.78]1 study · 174 participantsVery low
Fluoroquinolone plus standard regimen vs standard regimen alone
One or more adverse event · Patients with presumed drug‐sensitive TB
Fluoroquinolones for treating tuberculosis (presumed drug‐sensitive) (2013) · Cochrane
RR 1 [0.52, 1.92]1 study · 174 participantsVery low
Fluoroquinolone substitution for ethambutol in a standard six month regimen vs standard regimen
Treatment failure · Patients with presumed drug‐sensitive TB
Fluoroquinolones for treating tuberculosis (presumed drug‐sensitive) (2013) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Fluoroquinolone substitution for ethambutol in a standard six month regimen vs standard regimen
Relapse · Patients with presumed drug‐sensitive TB
Fluoroquinolones for treating tuberculosis (presumed drug‐sensitive) (2013) · Cochrane
RR 0.71 [0.17, 3.06]1 study · 170 participantsVery low
Lactose‐free vs lactose‐containing milk, milk products, or foodstuffs
Duration of diarrhoea (hours) · Young children with acute diarrhoea
Lactose avoidance for young children with acute diarrhoea (2013) · Cochrane
no estimate extracted16 studies · 1467 participantsLow
Lactose‐free vs lactose‐containing milk, milk products, or foodstuffs
Treatment failure · Young children with acute diarrhoea
Lactose avoidance for young children with acute diarrhoea (2013) · Cochrane
RR 0.52 [0.39, 0.68]18 studies · 1470 participantsModerate
Lactose‐free vs lactose‐containing milk, milk products, or foodstuffs
Need for hospitalization · Young children with acute diarrhoea
Lactose avoidance for young children with acute diarrhoea (2013) · Cochrane
RR 0.79 [0.09, 6.65]1 study · 83 participantsVery low
Diluted (by at least 50%) vs undiluted lactose‐containing milk, milk products, or foodstuffs
Duration of diarrhoea (hours) · Young children with acute diarrhoea
Lactose avoidance for young children with acute diarrhoea (2013) · Cochrane
no estimate extracted5 studies · 471 participantsLow
Diluted (by at least 50%) vs undiluted lactose‐containing milk, milk products, or foodstuffs
Treatment failure · Young children with acute diarrhoea
Lactose avoidance for young children with acute diarrhoea (2013) · Cochrane
RR 0.65 [0.45, 0.94]9 studies · 687 participantsLow
Diluted (by at least 50%) vs undiluted lactose‐containing milk, milk products, or foodstuffs
Need for hospitalization · Young children with acute diarrhoea
Lactose avoidance for young children with acute diarrhoea (2013) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Probiotic vs placebo
Duration of diarrhoea days · Children with persistent diarrhoea
Probiotics for treating persistent diarrhoea in children (2013) · Cochrane
no estimate extracted2 studies · 324 participantsModerate
Probiotic vs placebo
Stool frequency on day 5 · Children with persistent diarrhoea
Probiotics for treating persistent diarrhoea in children (2013) · Cochrane
no estimate extracted2 studies · 327 participantsLow
Probiotic vs placebo
Hospital stay days · Children with persistent diarrhoea
Probiotics for treating persistent diarrhoea in children (2013) · Cochrane
no estimate extracted1 study · 235 participantsModerate
Probiotic vs placebo
Death from any cause ‐ not measured · Children with persistent diarrhoea
Probiotics for treating persistent diarrhoea in children (2013) · Cochrane
no estimate extractedNRNo studies
Probiotic vs placebo
Weight‐for‐age z score ‐ not measured · Children with persistent diarrhoea
Probiotics for treating persistent diarrhoea in children (2013) · Cochrane
no estimate extractedNRNo studies
Rifampicin vs isoniazid
Active TB · HIV‐negative people at risk of TB infection1
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 0.81 [0.47, 1.4]1 study · 332 participantsVery low
Rifampicin plus pyrazinamide vs isoniazid
Adherence · HIV‐negative people at risk of TB infection1
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 1.06 [0.86, 1.29]4 studies · 700 participantsVery low
Rifampicin plus pyrazinamide vs isoniazid
Treatment‐limiting adverse events · HIV‐negative people at risk of TB infection1
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 3.61 [1.82, 7.19]2 studies · 368 participantsHigh
Rifampicin plus pyrazinamide vs isoniazid
Hepatotoxicity · HIV‐negative people at risk of TB infection1
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 4.59 [2.14, 9.85]3 studies · 540 participantsModerate
Rifapentine plus isoniazid weekly vs isoniazid daily
Active TB · HIV‐negative people at risk of TB infection1
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 0.44 [0.18, 1.07]1 study · 7731 participantsModerate
Rifapentine plus isoniazid weekly vs isoniazid daily
Adherence · HIV‐negative people at risk of TB infection1
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 1.19 [1.16, 1.22]1 study · 7731 participantsModerate
Rifapentine plus isoniazid weekly vs isoniazid daily
Treatment‐limiting adverse events · HIV‐negative people at risk of TB infection1
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 1.32 [1.07, 1.64]1 study · 7731 participantsModerate
Rifapentine plus isoniazid weekly vs isoniazid daily
Hepatotoxicity · HIV‐negative people at risk of TB infection1
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 0.16 [0.1, 0.27]1 study · 7799 participantsHigh
Rifampicin vs isoniazid
Adherence6 · HIV‐negative people at risk of TB infection1
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 1.19 [1.01, 1.3]5 studies · 1768 participantsModerate
Rifampicin vs isoniazid
Treatment‐limiting adverse events · HIV‐negative people at risk of TB infection1
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 0.48 [0.23, 1]4 studies · 1674 participantsVery low
Rifampicin vs isoniazid
Hepatotoxicity:13 Grade 3 and 4 toxicity · HIV‐negative people at risk of TB infection1
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 0.15 [0.07, 0.4]5 studies · 1774 participantsModerate
Rifampicin plus isoniazid vs isoniazid
Active TB · HIV‐negative people at risk of TB infection
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 1.08 [0.65, 1.79]1 study · 328 participantsVery low
Rifampicin plus isoniazid vs isoniazid
Adherence · HIV‐negative people at risk of TB infection
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 1.07 [0.98, 1.17]2 studies · 524 participantsHigh
Rifampicin plus isoniazid vs isoniazid
Treatment‐limiting adverse events · HIV‐negative people at risk of TB infection
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 1.16 [0.74, 1.82]2 studies · 536 participantsLow
Rifampicin plus isoniazid vs isoniazid
Hepatotoxicity · HIV‐negative people at risk of TB infection
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 0.88 [0.43, 1.81]2 studies · 536 participantsLow
Rifampicin plus pyrazinamide vs isoniazid
Active TB: · HIV‐negative people at risk of TB infection1
Rifamycins (rifampicin, rifabutin and rifapentine) compared to isoniazid for preventing tuberculosis in… (2013) · Cochrane
RR 1.32 [0.42, 4.13]2 studies · 176 participantsVery low
Oral Isoniazid (INH) vs no intervention
Clinical failure clinical observation · patients with BCG adverse reactions1
Treating BCG‐induced disease in children (2013) · Cochrane
RR 1.48 [0.79, 2.78]2 studies · 54 participantsVery low
Oral erythromycin vs placebo or no intervention
Clinical failure clinical observation · patients with BCG adverse reactions
Treating BCG‐induced disease in children (2013) · Cochrane
RR 1.03 [0.7, 1.53]3 studies · 148 participantsVery low
Oral isoniazid plus rifampicin vs no intervention
Clinical failure clinical observation · infants with BCG vaccine adverse reactions1
Treating BCG‐induced disease in children (2013) · Cochrane
RR 1.2 [0.51, 2.83]1 study · 35 participantsVery low
Needle aspiration vs no intervention
Clinical failure No regression of abscess by clinical evaluation2 · infants with BCG vaccine adverse reactions1
Treating BCG‐induced disease in children (2013) · Cochrane
RR 0.13 [0.03, 0.55]1 study · 77 participantsLow
Local instillation of isoniazid vs erythromycin
Time to resolution of illness Clinical observation · patients with BCG adverse reactions1
Treating BCG‐induced disease in children (2013) · Cochrane
no estimate extracted1 study · 27 participantsLow
Summary of findings: ACT vs CQ
Remaining parasitaemic at 24 hours · Adults and children with uncomplicated P. vivax malaria
Artemisinin‐based combination therapy for treating uncomplicated Plasmodium vivax malaria (2013) · Cochrane
RR 0.42 [0.36, 0.5]4 studies · 1652 participantsHigh
Summary of findings: ACT vs CQ
Remaining febrile after 24 hours · Adults and children with uncomplicated P. vivax malaria
Artemisinin‐based combination therapy for treating uncomplicated Plasmodium vivax malaria (2013) · Cochrane
RR 0.55 [0.43, 0.7]2 studies · 990 participantsModerate
Summary of findings: ACT vs CQ
Effective treatment of the blood stage parasite As assessed by: Recurrent parasitaemia before day 28 · Adults and children with uncomplicated P. vivax malaria
Artemisinin‐based combination therapy for treating uncomplicated Plasmodium vivax malaria (2013) · Cochrane
RR 0.58 [0.18, 1.9]5 studies · 1622 participantsHigh
Summary of findings: ACT vs CQ
Post‐treatment prophylaxis As assessed by: Recurrent parasitaemia between day 28 and day 42/56/63 · Adults and children with uncomplicated P. vivax malaria
Artemisinin‐based combination therapy for treating uncomplicated Plasmodium vivax malaria (2013) · Cochrane
RR 0.27 [0.08, 0.94]1 study · 376 participantsLow
Summary of findings: ACT vs CQ
Serious adverse events · Adults and children with uncomplicated P. vivax malaria
Artemisinin‐based combination therapy for treating uncomplicated Plasmodium vivax malaria (2013) · Cochrane
RR 1 [0.14, 7.04]5 studies · 1775 participantsHigh
Summary of findings: DHA‐P vs alternative ACTs
Effective treatment of the blood stage parasite As assessed by: Recurrent parasitaemia before day 28 · Adults and children with uncomplicated P. vivax malaria
Artemisinin‐based combination therapy for treating uncomplicated Plasmodium vivax malaria (2013) · Cochrane
RR 0.2 [0.08, 0.49]3 studies · 334 participantsModerate
Summary of findings: DHA‐P vs alternative ACTs
Post‐treatment prophylaxis As assessed by: Recurrent parasitaemia between day 28 and 42 · Adults and children with uncomplicated P. vivax malaria
Artemisinin‐based combination therapy for treating uncomplicated Plasmodium vivax malaria (2013) · Cochrane
RR 0.21 [0.1, 0.46]2 studies · 179 participantsLow
Intervention NR
ETEC diarrhoea · People travelling from non‐endemic settings
Vaccines for preventing enterotoxigenic Escherichia coli (ETEC) diarrhoea (2013) · Cochrane
RR 0.93 [0.61, 1.41]1 study · 502 participantsLow