Table 7. Description of tumor size, lymph node stations explored, and lymph nodes reported with or without induction chemotherapy +/− radiation therapy.
| Assessed and reported* | Total (n=52) | Induction chemotherapy (n=7) | Induction chemoradiation (n=6) | No induction (n=39) | P value |
|---|---|---|---|---|---|
| Tumor size | 4.1±0.3 (0.5–9.0) | 3.3±1.0 (1.3–9.0) | 2.3±0.7 (0.5–4.0) | 4.6±0.3 (1.4–9.0) | 0.03 |
| Number of N2 stations assessed | 4.1±0.1 (3.0–7.0) | 3.6±0.3 (3.0–5.0) | 3.8±0.2 (3.0–4.0) | 4.2±0.2 (3.0–7.0) | 0.21 |
| Number of N2 stations reported | 3.6±0.2 (1.0–6.0) | 2.9±0.6 (1.0–5.0) | 3.2±0.2 (2.0–4.0) | 3.8±0.2 (2.0–6.0) | 0.26 |
| Number of N2 lymph nodes | 8.9±0.8 (3.0–29.0) | 8.0±3.5 (3.0–29.0) | 6.5±0.9 (4.0–9.0) | 9.5±0.9 (3.0–26.0) | 0.49 |
| Number of N1 stations reported | 1.9±0.1 (1.0–3.0) | 2.0±0.2 (1.0–3.0) | 1.3±0.2 (1.0–2.0) | 1.9±0.1 (1.0–3.0) | 0.10 |
| Number of N1 lymph nodes | 6.4±0.5 (1.0–23.0) | 6.3±0.8 (2.0–8.0) | 5.0±1.7 (1.0–13.0) | 6.7±0.6 (1.0–23.0) | 0.58 |
| Overall total N1 + N2 stations reported | 5.4±0.2 (3.0–8.0) | 4.9±0.7 (3.0–8.0) | 4.5±0.4 (3.0–6.0) | 5.7±0.2 (4.0–8.0) | 0.06 |
| Overall total lymph nodes | 15.4±1.0 (6.0–37.0) | 14.3±3.9 (6.0–37.0) | 11.5±2.3 (6.0–22.0) | 16.2±1.0 (6.0–33.0) | 0.28 |
*, mean ± S.E.M. (Range).