| 特征 | 训练集(n = 171) | 测试集(n = 73) | 全集(n = 244) |
| 年龄 | 53 (43, 59) | 52 (45, 60) | 52 (43, 59) |
| 性别 |
|
|
|
| 女 | 82 (48.0) | 42 (57.5) | 124 (50.8) |
| 男 | 89 (52.0) | 31 (42.5) | 120 (49.2) |
| *随访时间 |
|
|
|
| ≤6月 | 128 (74.9) | 54 (74.0) | 182 (74.6) |
| >6月 | 43 (25.1) | 19 (26.0) | 62 (25.4) |
| 病灶直径(mm) | 23 (17, 27) | 22 (19, 26) | 22 (17, 27) |
| 症状 |
|
|
|
| 无 | 134 (78.4) | 59 (80.8) | 193 (79.1) |
| 有 | 37 (21.6) | 14 (19.2) | 51 (21.9) |
| 乏力症状 |
|
|
|
| 无 | 162 (94.7) | 67 (91.8) | 229 (93.9) |
| 有 | 9 (5.3) | 6 (8.2) | 15 (6.1) |
| 吸烟史 |
|
|
|
| 无 | 132 (77.2) | 53 (72.6) | 185 (75.8) |
| 有 | 39 (22.8) | 20 (27.4) | 59 (24.2) |
| 是否强化 |
|
|
|
| 未强化 | 58 (33.9) | 26 (35.6) | 84 (34.4) |
| 强化 | 113 (66.1) | 47 (64.4) | 160 (65.6) |
| 形状 |
|
|
|
| 不规则 | 133 (77.8) | 61 (83.6) | 194 (79.5) |
| 规则 | 38 (22.2) | 12 (16.4) | 50 (20.5) |
| 边缘 |
|
|
|
| 清晰 | 136 (79.5) | 61 (83.6) | 197 (80.7) |
| 模糊 | 35 (20.5) | 12 (16.4) | 47 (19.3) |
| 实性部分密度 |
|
|
|
| 均匀 | 110 (64.3) | 53 (72.6) | 163 (66.8) |
| 不均匀 | 61 (35.7) | 20 (27.4) | 81 (33.2) |
| 钙化 |
|
|
|
| 无 | 162 (94.7) | 68 (93.2) | 230 (94.3) |
| 有 | 9 (5.3) | 5 (6.8) | 14 (5.7) |
| 手术方式 |
|
|
|
| 胸腔镜手术 | 165 (96.5) | 69 (94.5) | 234 (95.9) |
| 开放手术 | 6 (3.5) | 4 (5.5) | 10 (4.1) |
| 病理性质 |
|
|
|
| 囊肿 | 109 (63.7) | 46 (63.0) | 155 (63.5) |
| 胸腺上皮性肿瘤 | 62 (36.3) | 27 (37.0) | 89 (36.5) |