Table 4.

Accuracy of the Developed Model in the Validation Cohort

Predicted Risk	No. of Patients (%)	No. of Patients with ALN Metastasis	Sensitivity (%)	Specificity (%)	Accuracy (%)	Positive Predictive Rate (%)	Negative Predictive Rate (%)
<0.051	43 (4.15)	1	99.31	4.70	17.84	14.39	97.67
<0.082	105 (10.13)	3	97.92	11.42	23.43	15.13	97.14
<0.100	172 (16.59)	5	96.53	18.70	29.51	16.07	97.09
<0.142	313 (30.18)	12	91.67	33.71	41.76	18.23	96.17
<0.163	471 (45.42)	19	86.81	50.62	55.64	22.08	95.97
<0.205	503 (48.51)	20	86.11	54.09	58.53	23.22	96.02
<0.261	602 (58.05)	38	73.61	63.16	64.61	24.37	93.69
<0.313	737 (71.07)	50	65.28	76.93	75.31	31.33	93.22
<0.407	903 (87.08)	69	52.08	93.39	87.66	55.97	92.36
<0.487	920 (88.72)	75	47.92	94.62	88.14	58.97	91.85