Table 1.
Baseline demographic and clinical characteristics of ESCC patients, Guangzhou, 2005–2010 (N=944 )
| Characteristics | Smokers | Non-smokers | p |
|---|---|---|---|
| Sample size | 608 | 336 | |
| Gender, M/F | 599/9 | 127/209 | <0.001 |
| Age (years) | 58.1±8.76 | 59.0±9.57 | 0.135 |
| ALB, g/L | 42.9±4.2 | 43.5±5.1 | 0.062 |
| GLB, g/L | 26.3±4.9 | 28.1±5.6 | <0.001 |
| CEA, ng/mL | 3.5±2.8 | 2.8±3.8 | 0.002 |
| Tumor site, n | 0.031 | ||
| Upper | 64 | 25 | |
| Middle | 359 | 227 | |
| Distal | 185 | 84 | |
| Tumor size, cm | 4.6±1.9 | 4.3±1.8 | 0.003 |
| Differentiation | 0.529 | ||
| G1 | 128 | 62 | |
| G2 | 291 | 160 | |
| G3 | 189 | 114 | |
| TNM, n | 0.008 | ||
| Stage 1 | 59 | 41 | |
| Stage 2 | 260 | 173 | |
| Stage 3 | 277 | 119 | |
| Stage 4 | 12 | 3 |
Numbers with ± represent mean ± SD.