Table 5.

Emergency department patients 2016–2019

	High-risk Well’s score (>4) group		Low-risk Well’s score (≤4) group
Patient age	PSR	Total number of CTPAs	PSR	Total number of CTPAs
<35	8.37%	227	10.19%	206
35–49	14.60%	322	10.92%	229
50–64	17.11%	380	17.32%	358
65–80	19.50%	441	19.78%	359
>80	18.13%	193	15.70%	121
Total	16.12%	1563	15.55%	1273

CTPA, CT pulmonary angiogram; PSR, positive scan rate.

PSR and total number of CTPAs for different age groups in the high- and low-risk Well’s score groups.