Table 3.

Evaluation of S/L ratio of lymph node for metastasis

SL ratio	Sensitivity (%)	Specificity (%)	Accuracy (%)	LR+	LR−
>= 0.56	95.24	10.92	45.81	1.0692	0.4359
>= 0.58	95.24	14.29	47.78	1.1111	0.3333
>= 0.6	94.05	16.81	48.77	1.1305	0.3542
>= 0.61	89.29	35.29	57.64	1.3799	0.3036
>= 0.62	89.29	36.13	58.13	1.398	0.2965
>= 0.64	84.52	48.74	63.55	1.6489	0.3175
>= 0.65	82.14	51.26	64.04	1.6853	0.3484
>= 0.66	82.14	57.98	67.98	1.955	0.308
>= 0.67	78.57	64.71	70.44	2.2262	0.3312
>= 0.68	78.57	66.39	71.43	2.3375	0.3228
>= 0.7	73.81	72.27	72.91	2.6616	0.3624
>= 0.71	64.29	77.31	71.92	2.8333	0.462
>= 0.73	59.52	78.15	70.44	2.7244	0.5179
>= 0.74	57.14	78.99	69.95	2.72	0.5426
>= 0.76	54.76	79.83	69.46	2.7153	0.5667
>= 0.77	47.62	79.83	66.50	2.3611	0.6561
>= 0.78	42.86	81.51	65.52	2.3182	0.701
>= 0.8	35.71	86.55	65.52	2.6563	0.7427
>= 0.81	27.38	93.28	66.01	4.0729	0.7785
Area under curve	0.7463; 95% CI (0.67–0.81)

CI = confidence interval