Table 3.

Demographics of splenic artery embolisation guidelines according to quality

	High quality guidelinesa	Moderate quality guidelinesa	Low quality guidelines	p-value
Total number	9	9	10	N/A
Published within the last 5 years (number, percentage)	5 (55.6%)	5 (55.6%)	3 (30.0%)	0.430
Institution of lead authorb (number, percentage)	Society: 4 (44.4%) Hospital: 5 (55.6%) Government: 0 (0%)	Society: 0 (0%) Hospital: 8 (88.9%) Government: 1 (11%)	Society: 1 (10.0%) Hospital: 9 (90.0%) Government: 0 (0%)	0.074
Continent of origin (number, percentage)	Europe: 2 (22.2%) Asia: 1 (11.1%) North America: 6 (66.7%) Australia: 0 (0%)	Europe: 3 (33.3%) Asia: 4 (44.4%) North America: 0 (0%) Australia: 2 (22.2%)	Europe: 4 (40%) Asia: 4 (40%) North America: 2 (20%) Australia:0 (0%)	0.030
Recommends prophylactic splenic artery embolisationc (number, percentage)	6 (66.7%)	4 (44.4%)	3 (30.0%)	0.275

^aAccording to the classification in Table 1

^bDefined as the affiliation of the authors, either hospital, society, college, or government

^cDefined as whether the guideline recommends routine embolisation of high grade splenic trauma (AAST IV or V) regardless of the presence of a vascular lesion