Table 3.
The association of pure GGO nodules with the clinicopathologic characteristics of 117 patients with individual-matching according to tumor stage.
| Characteristic | Total, n=117 | Non-pure GGO nodule, n=78 | Pure GGO nodule, n=39 | p-value |
|---|---|---|---|---|
| Gender, n (%) | ||||
| Male | 54 (46.2) | 36 (46.2) | 18 (46.2) | 1.000 |
| Female | 63 (53.8) | 42 (53.8) | 21 (53.8) | |
| Age, years | ||||
| ≤60 | 77 (65.8) | 52 (66.7) | 25 (64.1) | 0.783 |
| >60 | 40 (34.2) | 26 (33.3) | 14 (35.9) | |
| Smoking history, n (%) | ||||
| Never | 79 (67.5) | 53 (67.9) | 26 (66.7) | 0.664 |
| Former | 6 (5.1) | 3 (3.8) | 3 (7.7) | |
| Current | 32 (27.4) | 22 (28.2) | 10 (25.6) | |
| Histology, n (%) | ||||
| Adenocarcinoma | 102(87.2) | 68 (87.2) | 34 (87.2) | 1.000 |
| Squamous | 3(2.6) | 2(2.6) | 1(2.6) | |
| SCLC | 0 (0.0) | 0 (0.0) | 0 (0) | |
| Other | 12 (10.2) | 8 (10.2) | 4(10.2) | |
| Tumor size, n (%) | ||||
| ≤3cm | 96 (82.1) | 62 (79.5) | 34 (87.2) | 0.307 |
| >3cm | 21 (17.9) | 16 (10.5) | 5 (12.8) | |
| Lymph node metastasis, n (%) | ||||
| No | 106 (90.6) | 69 (88.5) | 38 (97.4) | 0.102 |
| Yes | 11 (9.4) | 9 (11.5) | 1 (2.6) | |
| Pathological grade, n (%) | ||||
| Well | 46 (39.3) | 20 (25.6) | 26 (66.7) | <0.001 |
| Moderately | 34 (29.1) | 31 (39.7) | 3 (7.7) | |
| Poorly | 13 (11.1) | 11 (14.1) | 2 (5.1) | |
| Unknown | 24 (20.5) | 16(20.5) | 8 (20.5) | |
| Pathological stage, n (%) | ||||
| I | 99 (84.6) | 66(84.6) | 33 (84.6) | 1.000 |
| II | 12 (10.3) | 8 (10.3) | 4 (10.3) | |
| III | 6 (5.1) | 4 (5.1) | 2 (5.1) | |
SD standard deviation; SCLC small cell lung cancer; GGO ground glass opacity.