Gap finder

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)

1,080 questions in 109 reviews · Acute Respiratory Infections

current versions
No studies 132 · 12.2%Ungraded 90 · 8.3%Very low 169 · 15.6%Low 306 · 28.3%Moderate 287 · 26.6%High 96 · 8.9%

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
X‐ray defined pneumonia, ITT (random) ( · Children under two years of age
Pneumococcal conjugate vaccines for preventing vaccine‐type invasive pneumococcal disease and X‐ray defined… (2009) · Cochrane
RR 0.73 [0.64, 0.85]4 studies · 104755 participantsModerate
Intervention NR
Clinical pneumonia, ITT (random) ( · Children under two years of age
Pneumococcal conjugate vaccines for preventing vaccine‐type invasive pneumococcal disease and X‐ray defined… (2009) · Cochrane
RR 0.94 [0.91, 0.98]4 studies · 104755 participantsModerate
Third generation cephalosporins vs conventional therapy
Death · patients treated for acute bacterial meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted19 studies · 1496 participantsUngraded
Third generation cephalosporins vs conventional therapy
Death · patients treated for meningococcal meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted13 studies · 477 participantsUngraded
Third generation cephalosporins vs conventional antibiotics (high and low/middle‐income countries)
Death · patients treated for acute bacterial meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted19 studies · 1301 participantsUngraded
Third generation cephalosporins vs conventional antibiotics (high and low/middle‐income countries)
Death: high‐income countries · patients treated for acute bacterial meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted9 studies · 510 participantsUngraded
Third generation cephalosporins vs conventional antibiotics (high and low/middle‐income countries)
Death: Low/middle‐income countries · patients treated for acute bacterial meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted10 studies · 791 participantsUngraded
Third generation cephalosporins vs conventional antibiotics (high and low/middle‐income countries)
Deafness · patients treated for acute bacterial meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted10 studies · 501 participantsUngraded
Third generation cephalosporins vs conventional antibiotics (high and low/middle‐income countries)
Deafness: high‐income countries · patients treated for acute bacterial meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted6 studies · 380 participantsUngraded
Third generation cephalosporins vs conventional antibiotics (high and low/middle‐income countries)
Deafness: low‐income countries · patients treated for acute bacterial meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted4 studies · 121 participantsUngraded
Third generation cephalosporins vs conventional therapy
Deafness · patients treated for acute bacterial meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted10 studies · 501 participantsUngraded
Third generation cephalosporins vs conventional therapy
Culture positivity 10 to 48 hours start of treatment · patients treated for acute bacterial meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted12 studies · 442 participantsUngraded
Third generation cephalosporins vs conventional therapy
Diarrhoea · patients treated for acute bacterial meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted12 studies · 750 participantsUngraded
Third generation cephalosporins vs conventional therapy
Neutropenia · patients treated for acute bacterial meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted10 studies · 472 participantsUngraded
Third generation cephalosporins vs conventional therapy
Skin rash · patients treated for acute bacterial meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted8 studies · 533 participantsUngraded
Third generation cephalosporins vs conventional therapy
Treatment failure (either death or deafness) · patients treated for acute bacterial meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted19 studies · 1496 participantsUngraded
Cephalosporins vs conventional therapy
Death · patients treated for H. influenzae meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted10 studies · 318 participantsUngraded
Third generation cephalosporins vs conventional antibiotics
Death · patients treated for S. pneumoniae meningitis
Third generation cephalosporins versus conventional antibiotics for treating acute bacterial meningitis (2007) · Cochrane
no estimate extracted11 studies · 129 participantsUngraded
Antibiotic vs control ‐ primary outcomes
Prevention ‐ any AOM or CSOM during intervention · patients with the prevention of acute and chronic suppurative otitis media in children
Antibiotics for the prevention of acute and chronic suppurative otitis media in children (2006) · Cochrane
RR 0.65 [0.53, 0.79]14 studies · 1461 participantsModerate
Antibiotic vs control ‐ secondary outcomes
Side effects ‐ any clinical side effects during intervention · patients with the prevention of acute and chronic suppurative otitis media in children
Antibiotics for the prevention of acute and chronic suppurative otitis media in children (2006) · Cochrane
RR 1.99 [0.25, 15.89]12 studies · 817 participantsModerate
Intervention NR
Number of ARTIs · children (age < 18 years) susceptible to acute respiratory tract infections (ARTIs)
Immunostimulants for preventing respiratory tract infection in children (2006) · Cochrane
no estimate extracted35 studies · 4060 participantsModerate
Intervention NR
Percent difference in ARTIs · children (age < 18 years) susceptible to acute respiratory tract infections (ARTIs)
Immunostimulants for preventing respiratory tract infection in children (2006) · Cochrane
no estimate extracted35 studies · 4060 participantsModerate
Intervention NR
Incidence of gastrointestinal adverse events · children (age < 18 years) susceptible to acute respiratory tract infections (ARTIs)
Immunostimulants for preventing respiratory tract infection in children (2006) · Cochrane
no estimate extracted10 studies · 1457 participantsLow
Intervention NR
Incidence of skin adverse events · children (age < 18 years) susceptible to acute respiratory tract infections (ARTIs)
Immunostimulants for preventing respiratory tract infection in children (2006) · Cochrane
no estimate extracted10 studies · 1469 participantsLow
Intervention NR
Mortality · children with measles
Vitamin A for treating measles in children (2005) · Cochrane
RR 0.7 [0.42, 1.15]8 studies · 2574 participantsModerate
Intervention NR
Pneumonia‐specific mortality · children with measles
Vitamin A for treating measles in children (2005) · Cochrane
RR 0.57 [0.24, 1.37]4 studies · 723 participantsModerate
Intervention NR
Duration of pneumonia · children with measles
Vitamin A for treating measles in children (2005) · Cochrane
no estimate extracted2 studies · 249 participantsModerate
Intervention NR
Duration of diarrhea in days · children with measles
Vitamin A for treating measles in children (2005) · Cochrane
no estimate extracted2 studies · 249 participantsModerate
Intervention NR
Hospital stay in days · children with measles
Vitamin A for treating measles in children (2005) · Cochrane
no estimate extracted2 studies · 278 participantsModerate
Intervention NR
Duration of fever in days · children with measles
Vitamin A for treating measles in children (2005) · Cochrane
no estimate extracted2 studies · 149 participantsModerate