Table 1.
Clinicopathological characteristics of patients with lung cancer in young and elderly group
| Young group | Elderly group | P | |||
|---|---|---|---|---|---|
|
| |||||
| No. | (%) | No. | (%) | ||
| Total | 272 | 167 | |||
| Specimen type | <0.01 | ||||
| Surgery | 198 | (72.8) | 78 | (46.7) | |
| Biopsy | 74 | (27.8) | 89 | (53.3) | |
| Gender | <0.01 | ||||
| Males | 98 | (36.0) | 107 | (64.1) | |
| Females | 174 | (64.0) | 60 | (35.9) | |
| Smoking | <0.01 | ||||
| Non-smokers | 231 | (86.8) | 71 | (42.5) | |
| Smokers | 35 | (13.2) | 96 | (57.5) | |
| Histology | <0.01 | ||||
| Premalignant | 38 | (14.0) | 1 | (0.6) | <0.01 |
| Adenocarcinoma | 198 | (72.8) | 90 | (53.9) | <0.01 |
| Squamous cell carcinoma | 16 | (5.9) | 49 | (29.3) | <0.01 |
| Small cell carcinoma | 6 | (2.2) | 20 | (12) | <0.01 |
| Other | 14 | (5.1) | 7 | (4.2) | 0.65 |
| Differentiation | <0.01 | ||||
| Well | 121 | (44.5) | 47 | (28.1) | |
| Moderate | 55 | (20.2) | 26 | (15.6) | |
| Poor | 96 | (35.3) | 94 | (56.3) | |
| Lymph node metastasis | <0.01 | ||||
| Without | 172 | (63.2) | 55 | (32.9) | |
| With | 79 | (29.0) | 94 | (56.3) | |
| Unknow | 21 | (7.7) | 18 | (10.8) | |
| Clinical stage | <0.01 | ||||
| Premalignant | 38 | (14.6) | 1 | (0.7) | |
| I | 102 | (39.2) | 44 | (28.9) | |
| II | 21 | (8.1) | 13 | (8.6) | |
| IIIA | 19 | (7.3) | 21 | (13.8) | |
| IIIB | 9 | (3.5) | 18 | (11.8) | |
| IV | 71 | (27.3) | 55 | (36.2) | |
| Clinical symptom | 0.02 | ||||
| Cough | 113 | (41.5) | 103 | (61.7) | 0.48 |
| Dyspnea or chest pain | 75 | (27.6) | 50 | (30.0) | 0.59 |
| Fever | 16 | (5.9) | 7 | (4.2) | 0.44 |
| Hemoptysis | 26 | (9.6) | 40 | (24.0) | <0.01 |
| None | 94 | (34.6) | 32 | (19.2) | <0.01 |
Part of data was not available.