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%

Topical plus systemic prophylaxis vs placebo or no treatment

Allergic adverse events · adults receiving mechanical ventilation for at least 48 hours

Topical plus systemic prophylaxis showed no clear difference in allergic adverse events compared with placebo or no treatment (low certainty).

1 finding from 1 review

Topical prophylaxis vs no topical prophylaxis

Overall mortality ‐ topical plus systemic prophylaxis versus systemic prophylaxis alone · adults receiving mechanical ventilation for at least 48 hours

Topical prophylaxis showed no clear difference in overall mortality ‐ topical plus systemic prophylaxis versus… compared with no topical prophylaxis (low certainty).

1 finding from 1 review

Topical prophylaxis vs no topical prophylaxis

Overall mortality ‐ topical prophylaxis versus placebo or no treatment · adults receiving mechanical ventilation for at least 48 hours

Topical prophylaxis showed no clear difference in overall mortality ‐ topical prophylaxis versus placebo or no treatment compared with no topical prophylaxis (moderate certainty).

1 finding from 1 review

Summary of findings ‐ initiation of penicillin prophylaxis vs placebo

Incidence of S pneumoniae infection Isolated bacterial infection · children with SCD

Summary of findings ‐ initiation of penicillin prophylaxis may leads to lower incidence of S pneumoniae infection Isolated bacterial infection compared with placebo (low certainty).

1 finding from 1 review

Summary of findings ‐ withdrawal of penicillin prophylaxis vs continuation

Incidence of S pneumoniae Confirmed bacterial infection · children with SCD who have been receiving prophylactic penicillin for at least two years

Summary of findings ‐ withdrawal of penicillin prophylaxis showed no clear difference in incidence of S pneumoniae Confirmed bacterial infection compared with continuation (low certainty).

1 finding from 1 review

Summary of findings ‐ withdrawal of penicillin prophylaxis vs continuation

Nausea and vomiting · children with SCD who have been receiving prophylactic penicillin for at least two years

Summary of findings ‐ withdrawal of penicillin prophylaxis showed no clear difference in adverse effects: incidences of nausea and vomiting compared with continuation (low certainty).

1 finding from 1 review

Antistaphylococcal cephalosporins C1 and C2 (1st and 2nd generation) vs broad spectrum penicillins plus betalactamase inhibitors P2+ ‐ all outcomes

B2: Maternal sepsis – an all women · women undergoing caesarean section

It is very uncertain whether antistaphylococcal cephalosporins C1 and C2 (1st and 2nd generation) changes maternal sepsis compared with broad spectrum penicillins plus betalactamase inhibitors P2+ ‐ all… (very low certainty).

1 finding from 1 review

Antistaphylococcal cephalosporins C1 and C2 (1st and 2nd generation) vs broad spectrum penicillins plus betalactamase inhibitors P2+ ‐ all outcomes

Endometritis · women undergoing caesarean section

Antistaphylococcal cephalosporins C1 and C2 (1st and 2nd generation) showed no clear difference in maternal endometritis compared with broad spectrum penicillins plus betalactamase inhibitors P2+ ‐ all… (low certainty).

1 finding from 1 review

Antistaphylococcal cephalosporins C1 and C2 (1st and 2nd generation) vs broad spectrum penicillins plus betalactamase inhibitors P2+ ‐ all outcomes

Wound infection · women undergoing caesarean section

It is very uncertain whether antistaphylococcal cephalosporins C1 and C2 (1st and 2nd generation) changes maternal wound infection compared with broad spectrum penicillins plus betalactamase inhibitors P2+ ‐ all… (very low certainty).

1 finding from 1 review

Antistaphylococcal cephalosporins C1 and C2 (1st and 2nd generation) vs broad spectrum penicillins plus betalactamase inhibitors P2+ ‐ all outcomes

Maternal urinary tract infection · women undergoing caesarean section

It is very uncertain whether antistaphylococcal cephalosporins C1 and C2 (1st and 2nd generation) changes maternal urinary tract infection compared with broad spectrum penicillins plus betalactamase inhibitors P2+ ‐ all… (very low certainty).

1 finding from 1 review

Antistaphylococcal cephalosporins C1 and C2 (1st and 2nd generation) vs broad spectrum penicillins plus betalactamase inhibitors P2+ ‐ all outcomes

Maternal composite adverse effects · women undergoing caesarean section

It is very uncertain whether antistaphylococcal cephalosporins C1 and C2 (1st and 2nd generation) changes maternal composite adverse effects compared with broad spectrum penicillins plus betalactamase inhibitors P2+ ‐ all… (very low certainty).

1 finding from 1 review