Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,016 questions · 2,067 findings · 222 reviews · Headline outcomes only

No studies found 471 · 22.8%GRADE not reported 108 · 5.2%Very low 570 · 27.6%Low 458 · 22.2%Moderate 363 · 17.6%High 97 · 4.7%

Antibiotics (short duration) vs prolonged‐course antibiotic therapy be used

All‐cause mortality · hospital‐acquired pneumonia

Should short‐course antibiotic therapy showed no clear difference in mortality compared with prolonged‐course antibiotic therapy be used (moderate certainty).

1 finding from 1 review

Antibiotics (short duration) vs prolonged‐course antibiotic therapy be used

Mortality NF‐GNB · hospital‐acquired pneumonia

Should short‐course antibiotic therapy showed no clear difference in mortality NF‐GNB compared with prolonged‐course antibiotic therapy be used (low certainty).

1 finding from 1 review

Antibiotics (short duration) vs prolonged‐course antibiotic therapy be used

Mortality MRSA · hospital‐acquired pneumonia

Should short‐course antibiotic therapy showed no clear difference in mortality MRSA compared with prolonged‐course antibiotic therapy be used (moderate certainty).

1 finding from 1 review

Antibiotics (short duration) vs prolonged‐course antibiotic therapy be used

Recurrence of pneumonia · hospital‐acquired pneumonia

Should short‐course antibiotic therapy showed no clear difference in recurrence of pneumonia Clinical and/or microbiological criteria compared with prolonged‐course antibiotic therapy be used (low certainty).

1 finding from 1 review

Antibiotics (short duration) vs prolonged‐course antibiotic therapy be used

Recurrence of pneumonia ‐ NF‐GNB · hospital‐acquired pneumonia

Should short‐course antibiotic therapy probably leads to higher recurrence of pneumonia NF‐GNB Clinical and/or microbiological… compared with prolonged‐course antibiotic therapy be used (moderate certainty).

1 finding from 1 review

Antibiotics (short duration) vs prolonged‐course antibiotic therapy be used

Recurrence of pneumonia ‐ MRSA · hospital‐acquired pneumonia

Should short‐course antibiotic therapy showed no clear difference in recurrence of pneumonia MRSA Clinical and/or microbiological criteria compared with prolonged‐course antibiotic therapy be used (moderate certainty).

1 finding from 1 review

Antibiotics vs other antibiotics

Clinical diagnosis of leptospirosis regardless of laboratory confirmation · farmworkers

It is very uncertain whether summary of findings table ‐ Antibiotics changes clinical diagnosis of leptospirosis regardless of laboratory… compared with other antibiotics (very low certainty).

1 finding from 1 review

Antibiotics vs other antibiotics

Laboratory‐confirmed leptospirosis · farmworkers

It is very uncertain whether summary of findings table ‐ Antibiotics changes clinical diagnosis of leptospirosis confirmed by laboratory diagnosis compared with other antibiotics (very low certainty).

2 findings from 1 review

Antibiotics vs other antibiotics

Non‐serious adverse events · farmworkers

It is very uncertain whether summary of findings table ‐ Antibiotics changes non‐serious adverse events compared with other antibiotics (very low certainty).

1 finding from 1 review

Antibiotics vs other antibiotics

Adverse events considered non‐serious (penicillin versus cefotaxime) · people with leptospirosis

It is very uncertain whether summary of findings table ‐ Antibiotics changes adverse events considered non‐serious (penicillin versus cefotaxime) compared with other antibiotics (very low certainty).

1 finding from 1 review

Antibiotics vs other antibiotics

Adverse events considered non‐serious (penicillin versus doxycycline) · people with leptospirosis

It is very uncertain whether summary of findings table ‐ Antibiotics changes adverse events considered non‐serious (penicillin versus doxycycline) compared with other antibiotics (very low certainty).

1 finding from 1 review

Antibiotics vs other antibiotics

Non‐serious adverse events Maximum · people with leptospirosis

It is very uncertain whether summary of findings table ‐ Antibiotics changes adverse events considered non‐serious (penicillin versus… compared with other antibiotics (very low certainty).

1 finding from 1 review

Antibiotics vs other antibiotics

All‐cause mortality (penicillin versus a cephalosporin (cefotaxime or ceftriaxone)) · people with leptospirosis

It is very uncertain whether summary of findings table ‐ Antibiotics changes all‐cause mortality (penicillin versus a cephalosporin (cefotaxime… compared with other antibiotics (very low certainty).

1 finding from 1 review