Table 4.
Factors associated with smoking index among smoking ESCC patients, Guangzhou, 2005–2010 (N=944 )
| Characteristics | Smoking index <400 | Smoking index ≥400 | p |
|---|---|---|---|
| Sample size | 125 | 483 | |
| Gender, M/F | 120/5 | 479/4 | 0.009 |
| Age (years) | 56.4±10.9 | 58.4±8.2 | 0.028 |
| ALB, g/L | 43.0±4.4 | 42.8±4.1 | 0.776 |
| GLB, g/L | 26.1±4.5 | 26.3±5.1 | 0.601 |
| CEA, ng/mL | 3.1±2.6 | 3.6±2.8 | 0.094 |
| Tumor site, n | 0.705 | ||
| Upper | 15 | 49 | |
| Middle | 70 | 289 | |
| Distal | 40 | 145 | |
| Tumor size, cm | 4.7±1.9 | 4.5±1.8 | 0.495 |
| Differentiation | 0.016 | ||
| G1 | 17 | 111 | |
| G2 | 73 | 218 | |
| G3 | 35 | 154 | |
| TNM, n | 0.024 | ||
| Stage 1 | 12 | 47 | |
| Stage 2 | 68 | 192 | |
| Stage 3 | 43 | 234 | |
| Stage 4 | 2 | 10 |
Numbers with ± represent mean ± SD.