Table 2 Serum concentrations of CEA, CYFRA21-1, and SLX in pN0 and skip N2 patients
From: Sialyl Lewis X as a predictor of skip N2 metastasis in clinical stage IA non-small cell lung cancer
| Â | Number of patients | Mean serum level (95% CI) | P-value | ||
|---|---|---|---|---|---|
Pathological N0 | Skip N2 | Pathological N0 | Skip N2 | Â | |
CEA (ng/mL) | 230 | 12 | 5.3 (4.5, 6.0) | 5.4 (3.5, 7.4) | 0.196 |
CYFRA21-1 (ng/mL) | 219 | 12 | 1.4 (1.3, 1.6) | 1.8 (0.6, 2.9) | 0.936 |
SLX (U/mL) | 211 | 12 | 22.9 (21.7, 24.1) | 28.0 (23.5, 32.6) | 0.015 |
CEA: carcinoembryonic antigen; CYFRA: cytokeratin 19 fragment; SLX: sialyl Lewis X | Â | Mann-Whitney U-test | |||