Table 4.
Univariate analysis
| Factor | Poor prognosis group (n=22) | Good prognosis group (n=70) | χ2 | P |
|---|---|---|---|---|
| Age | 11.65 | 0.001 | ||
| ≤60 years old | 5 | 45 | ||
| >60 years old | 17 | 25 | ||
| Gender | 1.164 | 0.281 | ||
| Male | 16 | 42 | ||
| Female | 6 | 28 | ||
| BMI | 1.005 | 0.316 | ||
| ≤21 kg/m2 | 14 | 36 | ||
| >21 kg/m2 | 8 | 34 | ||
| Course of disease | 0.896 | 0.344 | ||
| ≤7 months | 10 | 24 | ||
| >7 months | 12 | 46 | ||
| TNM stage | 5.948 | 0.015 | ||
| Stage IIIa | 11 | 16 | ||
| Stage IIIb | 11 | 54 | ||
| Smoking history | 4.332 | 0.037 | ||
| Yes | 20 | 48 | ||
| No | 2 | 22 | ||
| Maximum tumor diameter | 7.240 | 0.007 | ||
| >6 cm | 9 | 10 | ||
| ≤6 cm | 13 | 60 | ||
| Education | 0.741 | 0.340 | ||
| Below college | 13 | 35 | ||
| College and above | 9 | 37 |
Note: χ2: chi-square test. BMI: body mass index.