19 February 2026 : Clinical Research
Efficacy of Nano-Carbon Tracing Versus Indocyanine Green in Lymph Node Detection for Minimally Invasive Colorectal Resection
Pei Yang ABCDEF 1, Rui Bao ABCDEF 2, Yang He ABCDEF 1, Yongjiang Zhao CDE 3, Yao Wang CDE 4, Yongliang Yao ACDEF 3*DOI: 10.12659/MSM.949967
Med Sci Monit 2026; 32:e949967
Table 3 Multivariate Cox regression analysis of prognostic factors for disease-free survival and overall survival.
| Variables | Hazard ratio | 95% Confidence interval | P-value |
|---|---|---|---|
| Nano-carbon labeling | 0.67 | 0.48–0.93 | 0.018 |
| Age (per 10-years increase) | 1.25 | 1.03–1.50 | 0.029 |
| Sex (Male vs Female) | 1.1 | 0.85–1.42 | 0.437 |
| Tumor stage (T3–T4 vs T1–T2) | 1.45 | 1.12–1.89 | 0.008 |
| Medical history (yes vs no) | 1.2 | 0.97–1.48 | 0.084 |
| Operation time (per 30-min increase) | 1.15 | 0.98–1.34 | 0.072 |