Intervention not reported
After accounting for all potential confounders, the overall average effect of speed cameras on crashes was a reduction of 25% in personal injury crashes (PIA's) and an average 11% reduction in fatal and serious crashes for the 500m monitoring leng...
1 finding from 1 review
no estimate extracted
Studies not reported
High
Blood transfusion · Adults and children (haemodynamically stable) with potential need for RBC transfusion
Liberal leads to lower participants exposed to blood transfusion (all studies) compared with restrictive transfusion protocols (high certainty).
1 finding from 1 review
30‐Day mortality · Adults and children (haemodynamically stable) with potential need for RBC transfusion
Liberal showed no clear difference in 30‐Day mortality compared with restrictive transfusion protocols (high certainty).
1 finding from 1 review
Myocardial infarction · Adults and children (haemodynamically stable) with potential need for RBC transfusion
Liberal showed no clear difference in myocardial infarction compared with restrictive transfusion protocols (high certainty).
1 finding from 1 review
Congestive heart failure · Adults and children (haemodynamically stable) with potential need for RBC transfusion
Liberal showed no clear difference in congestive heart failure compared with restrictive transfusion protocols (low certainty).
1 finding from 1 review
Stroke · Adults and children (haemodynamically stable) with potential need for RBC transfusion
Liberal showed no clear difference in cerebrovascular accident ‐ stroke compared with restrictive transfusion protocols (high certainty).
1 finding from 1 review
Rebleeding · Adults and children (haemodynamically stable) with potential need for RBC transfusion
Liberal showed no clear difference in rebleeding compared with restrictive transfusion protocols (moderate certainty).
1 finding from 1 review
Thromboembolism · Adults and children (haemodynamically stable) with potential need for RBC transfusion
Liberal showed no clear difference in thromboembolism compared with restrictive transfusion protocols (moderate certainty).
1 finding from 1 review
Infection · Adults and children (haemodynamically stable) with potential need for RBC transfusion
Liberal showed no clear difference in infection compared with restrictive transfusion protocols (high certainty).
1 finding from 1 review