Table 3. Estimated AUC of AJCC N factor, LNR and LODDS for OS at 1, 3, 5 and 10 years in young patients with gastric cancer.
| AUC of AJCC N factor (95% CI) | AUC of LNR (95% CI) | AUC of LODDS (95% CI) | P1† | P2‡ | |
|---|---|---|---|---|---|
| All-case analysis | |||||
| 1 year | 0.628 (0.597–0.658) | 0.694 (0.652–0.737) | 0.703 (0.661–0.745) | <0.001* | <0.001* |
| 3 years | 0.657 (0.624–0.690) | 0.698 (0.663–0.733) | 0.701 (0.665–0.736) | 0.030* | 0.019* |
| 5 years | 0.682 (0.645–0.720) | 0.694 (0.658–0.731) | 0.707 (0.671–0.743) | 0.548 | 0.216 |
| 10 years | 0.672 (0.602–0.741) | 0.666 (0.606–0.725) | 0.677 (0.617–0.736) | 0.858 | 0.881 |
| In patients with ≤15 examined LNs | |||||
| 1 year | 0.643 (0.590–0.696) | 0.638 (0.574–0.702) | 0.646 (0.582–0.709) | 0.867 | 0.922 |
| 3 years | 0.675 (0.623–0.728) | 0.682 (0.628–0.736) | 0.685 (0.631–0.739) | 0.792 | 0.687 |
| 5 years | 0.726 (0.669–0.782) | 0.687 (0.632–0.743) | 0.700 (0.644–0.755) | 0.128 | 0.296 |
| 10 years | 0.695 (0.598–0.793) | 0.641 (0.550–0.731) | 0.652 (0.561–0.743) | 0.156 | 0.254 |
AUC, area under the curve; LNR, lymph node ratio; LODDS, the log odds of positive lymph nodes; CI, confidence interval; LN, lymph node. *indicate significant P values. †, P1 value: AUC of AJCC N factor vs. AUC of LNR. ‡, P2 value: AUC of AJCC N factor vs. AUC of LODDS.