Table 2.

Sensitivity, specificity, positive likelihood ratio (LR+) and negative likelihood ratio (LR−) of the thoracic injury rule out criteria (TIRC) at various cut-off points.

Cut point	Sensitivity	Specificity	LR+	LR−
≥0	100.0	0.0	1.0	–
≥0.5	100.0	67.7	3.1	0.0
≥1	100.0	71.0	3.4	0.0
≥2	99.1	77.3	4.4	0.0
≥3	77.7	85.7	5.4	0.3
≥4	73.1	90.9	8.0	0.3
≥5	61.4	94.0	10.2	0.4
≥6	55.2	96.6	16.0	0.5
≥7	54.3	97.4	20.9	0.5
≥8	49.7	97.7	21.1	0.5
≥9	43.9	99.6	120.5	0.6
≥10	39.5	99.7	122.1	0.6
≥11	31.3	99.7	96.5	0.7
≥12	17.5	99.7	61.6	0.8
≥13	9.9	100.0	244.2	0.9
≥15	6.0	100.0	–	0.9
≥16	0.5	100.0	–	1.0