Table 2.
Correlation Between Solid Predominant Histologic Pattern and Recurrence
| Variable | Solid No. (%) | Nonsolid No. (%) | P* |
|---|---|---|---|
| Total No. of patients | 40 (21) | 148 (79) | |
| Recurrence pattern | < .001 | ||
| Locoregional | 6 (15) | 53 (36) | |
| Distant | 24 (60) | 76 (51) | |
| Both | 10 (25) | 19 (13) | |
| Recurrence pattern | < .001 | ||
| Intrathoracic | 9 (23) | 93 (63) | |
| Extrathoracic | 31 (77) | 55 (37) | |
| Recurrence pattern | .011 | ||
| Single site | 21 (53) | 110 (74) | |
| Multiple site | 19 (47) | 38 (26) | |
| Bone metastasis | |||
| Absent | 30 (75) | 119 (80) | .51 |
| Present | 10 (25) | 29 (20) | |
| Brain metastasis | |||
| Absent | 28 (70) | 131 (89) | .007 |
| Present | 12 (30) | 17 (11) | |
| Contralateral lung | |||
| Absent | 32 (80) | 122 (82) | .82 |
| Present | 8 (20) | 26 (18) | |
| Pleural effusion | |||
| Absent | 35 (88) | 126 (85) | .84 |
| Present | 5 (12) | 22 (15) | |
| Adrenal metastasis | |||
| Absent | 34 (85) | 141 (95) | .034 |
| Present | 6 (15) | 7 (5) | |
| Distant lymph node metastasis | |||
| Absent | 36 (90) | 134 (91) | > .99 |
| Present | 4 (10) | 14 (9) | |
| Liver metastasis | |||
| Absent | 35 (88) | 143 (97) | .038 |
| Present | 5 (12) | 5 (3) | |
| Chest wall metastasis | |||
| Absent | 39 (98) | 142 (96) | > .99 |
| Present | 1 (2) | 6 (4) | |
| Recurrence-free interval, months | |||
| ≤ 24 | 30 (75) | 75 (51) | .007 |
| > 24 | 10 (25) | 73 (49) |
*
Significant P values (< .05) are shown in bold type.