Table 1 Comparison of baseline characteristics between nonsmoking and smoking SCLC
From: Characteristics and clinical outcomes of patients with nonsmoking small cell lung cancer in Korea
Never-smoker | Ever-smoker (current + ex) | P value | |
|---|---|---|---|
No of patients, % | 154 (14.8%) | 889 (85.2%) | |
Age | |||
Median (range) | 74 (35–91) | 70 (32–96) | |
≥ 65 years | 126 (81.8%) | 620 (69.7%) | 0.002 |
Gender, female | 78 (50.6%) | 62 (7.0%) | < 0.001 |
BMI | 23.28 ± 3.55 | 23.09 ± 3.35 | 0.534 |
Stage | 0.115 | ||
Limited disease | 47 (30.5%) | 325 (36.6%) | |
Extensive disease | 102 (66.2%) | 514 (57.8%) | |
NA | 5 (3.2%) | 50 (5.6%) | |
ECOG PS ≥ 2 | 24 (21.6%) | 113 (16.8%) | 0.212 |
Symptoms at the diagnosis | 122 (79.2%) | 673 (75.7%) | 0.575 |
Treatment completeness | 117 (76.0%) | 744 (83.7%) | 0.038 |
Treatment strategy | |||
Best supportive care | 44 (28.6%) | 220 (24.7%) | 0.314 |
Chemotherapy | 72 (46.8%) | 516 (58.0%) | 0.009 |
Chemotherapy and local treatment | 15 (9.7%) | 121 (13.6%) | 0.188 |
Local therapy only | 13 (8.4%) | 32 (3.6%) | 0.006 |
NA | 10 (6.5%) | 0 (0.0%) |