Appendix Table 8.

Sensitivity and Specificity in the Training Set, Stratified by AI or Non-AI Group (95% CIs)

Threshold	Sensitivity (AI)	Specificity (AI)	Sensitivity (Non-AI)	Specificity (Non-AI)
1	126/126 = 100.0% (96.3%–100.0%)	5/89 = 5.6% (2.1%–13.2%)	60/63 = 95.2% (85.8%–98.8%)	24/84 = 28.6% (19.5%–39.6%)
2	113/126 = 89.7% (82.7%–94.2%)	24/89 = 27.0% (18.4%–37.6%)	47/63 = 74.6% (61.8%–84.4%)	53/84 = 63.1% (51.8%–73.2%)
3	93/126 = 73.8% (65.1%–81.0%)	54/89 = 60.7% (49.7%–70.7%)	39/63 = 61.9% (48.8%–73.6%)	71/84 = 84.5% (74.6%–91.2%)
4	86/126 = 68.3% (59.3%–76.1%)	60/89 = 67.4% (56.6%–76.8%)	36/63 = 57.1% (44.1%–69.3%)	74/84 = 88.1% (78.8%–93.8%)
5	75/126 = 59.5% (50.4%–68.1%)	61/89 = 68.5% (57.7%–77.7%)	34/63 = 54.0% (41.0%–66.4%)	79/84 = 94.0% (86.0%–97.8%)
6	46/126 = 36.5% (28.3%–45.6%)	80/89 = 89.9% (81.2%–95.0%)	28/63 = 44.4% (32.1%–57.4%)	82/84 = 97.6% (90.9%–99.6%)
7	22/126 = 17.5% (11.5%–25.5%)	84/89 = 94.4% (86.8%–97.9%)	13/63 = 20.6% (11.9%–33.0%)	83/84 = 98.8% (92.6%–99.9%)
8	10/126 = 7.9% (4.1%–14.5%)	87/89 = 97.8% (91.4%–99.6%)	9/63 = 14.3% (7.1%–25.9%)	84/84 = 100.0% (94.6%–100.0%)
9	8/126 = 6.3% (3.0%–12.5%)	89/89 = 100.0% (94.8%–100.0%)	7/63 = 11.1% (5.0%–22.2%)	84/84 = 100.0% (94.6%–100.0%)
10	5/126 = 4.0% (1.5%–9.5%)	89/89 = 100.0% (94.8%–100.0%)	5/63 = 7.9% (3.0%–18.3%)	84/84 = 100.0% (94.6%–100.0%)

AI = assault-injured.