Table 2 ROC analysis of Tlen, Tdia, Tare, and Tvol in the differentiation of N stage in patients with colon cancer
Tumor size | Cutoff | AUC (95% CI) | P value | Sensitivity (95% CI) | Specificity (95% CI) | Accuracy (95% CI) |
|---|---|---|---|---|---|---|
N0 VS N1-2 | ||||||
Tlen (cm) | 5.20 | 0.82 (0.74~0.90) | < 0.001 | 71.2% (57.7~81.8%, 37/52) | 81.5% (69.0~90.0%, 44/54) | 76.4% (67.5~83.5%, 81/106) |
Tdia (cm) | 1.56 | 0.69 (0.58~0.79) | 0.001 | 71.2% (57.7~81.8%, 37/52) | 51.9% (38.9~64.6%, 28/54) | 61.3% (51.8~70.1%, 65/106) |
Tare (cm2) | 9.47 | 0.79 (0.70~0.87) | < 0.001 | 84.6% (72.2~92.3%, 44/52) | 61.1% (47.8~72.3%, 33/54) | 72.6% (63.4~80.3%, 77/106) |
Tvol (cm3) | 38.00 | 0.83 (0.74~0.90) | < 0.001 | 69.2% (55.7~80.2%, 36/52) | 83.3% (71.0~91.2%, 45/54) | 76.4% (67.5~83.5%, 81/106) |
N0 VS N1 | ||||||
Tlen (cm) | 4.25 | 0.78 (0.68~0.88) | < 0.001 | 82.9% (66.9~92.3%, 29/35) | 61.1% (47.8~73.0%, 33/54) | 69.7% (59.4~78.3%, 62/89) |
Tdia (cm) | 1.49 | 0.63 (0.51~0.75) | 0.041 | 74.3% (57.8~86.0%, 26/35) | 48.1% (35.4~61.2%, 26/54) | 58.4% (48.0~68.1%, 52/89) |
Tare (cm2) | 9.47 | 0.74 (0.64~0.84) | < 0.001 | 80.0% (63.8~90.2%, 28/35) | 61.1% (47.8~73.0%, 33/54) | 68.5% (58.3~77.3%, 61/89) |
Tvol (cm3) | 23.22 | 0.79 (0.70~0.88) | < 0.001 | 88.6% (73.5~96.1%, 31/35) | 57.4% (44.2~69.7%, 31/54) | 69.7% (59.4~78.3%, 62/89) |
N0 VS N2 | ||||||
Tlen (cm) | 5.20 | 0.89 (0.82~0.97) | < 0.001 | 94.1% (71.1~100%, 16/17) | 81.5% (69.0~89.8%, 44/54) | 84.5% (74.2~91.3%, 60/71) |
Tdia (cm) | 1.99 | 0.80 (0.70~0.91) | < 0.001 | 82.4% (58.2~94.6%, 14/17) | 70.4% (57.1~80.9%, 38/54) | 74.6% (63.4~83.4%, 53/71) |
Tare (cm2) | 13.41 | 0.89 (0.80~0.97) | < 0.001 | 82.4% (58.2~94.6%, 14/17) | 83.3% (71.0~91.2%, 45/54) | 83.1% (72.3~90.2%, 59/71) |
Tvol (cm3) | 38.40 | 0.92 (0.86~0.99) | < 0.001 | 94.1% (71.1~100%, 16/17) | 83.3% (71.0~91.2%, 45/54) | 85.6% (75.8~92.4%, 61/71) |
N0-1 VS N2 | ||||||
Tlen (cm) | 5.20 | 0.79 (0.70~0.88) | < 0.001 | 94.1% (71.1~100%, 16/17) | 65.2% (54.8~74.3%, 58/89) | 69.8% (60.5~77.8%, 74/106) |
Tdia (cm) | 2.00 | 0.76 (0.66~0.86) | 0.001 | 82.4% (58.2~94.6%, 14/17) | 67.4% (57.1~76.3%, 60/89) | 69.8% (60.5~77.8%, 74/106) |
Tare (cm2) | 13.41 | 0.83 (0.72~0.93) | < 0.001 | 82.4% (58.2~94.6%, 14/17) | 75.3% (65.3~85.2%, 67/89) | 76.4% (67.5~83.5%, 81/106) |
Tvol (cm3) | 38.63 | 0.84 (0.76~0.93) | < 0.001 | 94.1% (71.1~100%, 16/17) | 68.5% (58.3~77.3%, 61/89) | 72.6% (63.4~80.3%, 77/106) |