Table 2

The relationships between clinicopathological features and survival in 171 patients with lung adenocarcinoma

VariableTotal (%)5-year OSP
Surviving (%)Dead (%)
Gender0.740
 Male71 (41.5)41 (57.7)30 (42.3)
 Female100 (58.5)61 (61)39 (39)
Age (years)0.270
 <5022 (12.9)16 (72.7)6 (27.3)
 ≥50149 (87.1)86 (57.7)63 (42.3)
History of smoking0.013*
 Absent102 (59.6)68 (66.7)34 (33.3)
 Present69 (40.4)34 (49.3)35 (50.7)
Hypertension0.866
 Absent123 (71.9)74 (60.2)49 (39.8)
 Present48 (28.1)28 (58.3)20 (41.7)
Diabetes0.263
 Absent161 (94.2)98 (60.9)63 (39.1)
 Present10 (5.8)4 (40)6 (60)
Past history0.671
 Absent160 (93.6)96 (60.0)64 (40.0)
 Present11 (6.4)6 (54.5)5 (45.5)
Family tumor history0.805
 Absent137 (80.1)81 (59.1)56 (40.9)
 Present34 (19.9)21 (61.8)13 (38.2)
SCC (μg/L)0.794
 ≤1.5160 (93.6)95 (59.4)65 (40.6)
 >1.511 (6.4)7 (63.6)4 (36.4)
TPSA (U/L)0.574
 ≤80142 (83.0)86 (60.6)56 (39.4)
 >8029 (17.0)16 (55.2)13 (44.8)
NSE (μg/L)<0.001**
 ≤15.2163 (95.3)102 (62.6)61 (37.4)
 >15.28 (4.7)0 (0)8 (100)
CEA (μg/L)<0.001**
 ≤5.0102 (59.6)71 (69.6)31 (30.4)
 >5.069 (40.4)31 (44.9)38 (55.1)
Cyfra21-1 (μg/L)0.020*
 ≤3.3123 (71.9)80 (65.0)43 (35.0)
 >3.348 (28.1)22 (45.8)26 (54.2)
Tumor size (cm)<0.001**
 ≤3122 (71.3)84 (68.9)38 (31.1)
 >349 (28.7)18 (36.7)31 (63.3)
Lymph node metastasis<0.001**
 Absent116 (67.8)87 (75.0)29 (25.0)
 Present55 (32.2)15 (27.3)40 (72.7)
Distant metastasis<0.001**
 Absent78 (45.6)72 (92.3)6 (7.7)
 Present93 (54.4)30 (32.3)63 (67.7)
Histologic style0.017*
 Lepidic predominant28 (16.3)24 (85.7)4 (14.3)
 Acinar predominant66 (38.6)38 (57.6)28 (42.4)
 Papillary predominant16 (9.4)10 (62.5)6 (37.5)
 Micropapillary predominant22 (12.9)8 (36.4)14 (63.6)
 Solid predominant33 (19.3)20 (60.6)13 (39.4)
 Mucinous predominant6 (3.5)2 (33.3)4 (66.7)
TNM stage<0.001**
 I98 (57.3)83 (84.7)15 (15.3)
 II16 (9.4)7 (43.8)9 (56.2)
 III36 (21.0)11 (30.6)25 (69.4)
 IV21 (12.3)1 (4.8)20 (95.2)

*P < 0.05; **P < 0.01. SCC, squamous cell carcinoma antigen; TPSA, total prostate-specific antigen; NSE, neuron-specific enolase; CEA, carcino-embryonic antigen; Cyfra21-1, cytokeratin 19 fragments.