Table 3.

Number of and percentage of CTPAs for in-patients and ED patients per year and their result for acute pulmonary embolism 2016–2019

		Equivocal CTPAs		Negative CTPAs		Positive CTPAs		Total CTPAs
Year	Patient type	Count	%	Count	%	Count	%	Count
2016	ED attender	51	7.5%	523	76.5%	110	16.1%	684
	In-patient	90	8.1%	827	74.8%	189	17.1%	1106
	Total	141	7.9%	1350	75.4%	299	16.7%	1790
2017	ED attender	63	5.8%	850	77.8%	179	16.4%	1092
	In-patient	163	8.6%	1430	75.5%	302	15.9%	1895
	Total	226	7.6%	2280	76.3%	481	16.1%	2987
2018	ED attender	47	5.1%	723	79.1%	144	15.8%	914
	In-patient	144	7.9%	1396	76.1%	294	16.0%	1834
	Total	191	7.0%	2119	77.1%	438	15.9%	2748
2019	ED attender	40	3.5%	936	81.5%	172	15.0%	1148
	In-patient	132	6.9%	1494	78.0%	290	15.1%	1916
	Total	172	5.6%	2430	79.3%	462	15.1%	3064
Total	ED attender	201	5.2%	3032	79.0%	605	15.8%	3838
	In-patient	529	7.8%	5147	76.2%	1075	15.9%	6751
	Grand total	730	6.9%	8179	77.2%	1680	15.9%	10,589

CTPA, CT pulmonary angiogram; ED, emergency department.