Characteristics | Non-recurrent (n = 6) | Recurrent (n = 5) | P-value |
---|---|---|---|
Median age (range) | 70.5 (63–76) | 78.0 (65–82) | 0.261 |
Sex (male/female) | 5/1 | 5/0 | 1.000 |
Smoking history (+/−) | 6/0 | 5/0 | 1.000 |
Median Brinkman index (range) | 890 (180–3000) | 1770 (920–2000) | 0.493 |
Pathological stage (I/II) | 4/1 | 4/2 | 0.545 |
Median tumor size (mm) (range) | 19 (12–34) | 40 (10–43) | 0.159 |
Degree of differentiation | Â | Â | 0.437 |
 Well | 1 | 3 |  |
 Moderate | 4 | 1 |  |
 Poor | 1 | 1 |  |
Lymph node metastasis (+/−) | 1/5 | 1/4 | 1.000 |
Pleural invasion (+/−) | 0/6 | 5/0 | 0.002* |
Lymphatic vessel invasion (+/−) | 1/5 | 5/0 | 0.015* |
Blood vessel invasion (+/−) | 3/3 | 5/0 | 0.182 |
Surgical procedure | Â | Â | 0.455 |
 Lobectomy | 6 | 4 |  |
 Segmentectomy | 0 | 1 |  |
Adjuvant chemotherapy | |||
 Indication (Stage IA3-IIB) | 2 | 2 | 1.000 |
 Received | 0 | 1 | 1.000 |
Recurrent style |  |  | – |
 Locoregional | – | 3 |  |
 Distant | – | 2 |  |