Table 3 Univariate analysis of factors associated with OS and DFS
Variable | OS | DFS | ||||
|---|---|---|---|---|---|---|
Mean survival month | 95% CI | P value | Mean survival month | 95% CI | P value | |
Periostin | ||||||
Negative | 51 | 42.191-60.975 | 0.003 | 42 | 32.503-50.663 | 0.001 |
Positive | 31 | 26.533-35.347 | 23 | 19.578-29.222 | ||
Sex | ||||||
Male | 34 | 30.480-39.391 | 0.073 | 26 | 22.971-30.868 | 0.066 |
Female | 31 | 25.388-36.612 | 23 | 16.055-29.945 | ||
Age at diagnosis (years) | ||||||
<30 | 35 | 30.480-39.391 | 0.169 | 26 | 22.971-30.868 | 0.169 |
>30 | 31 | 25.388-36.612 | 23 | 16.055-29.945 | ||
Site of primary disease | ||||||
Tibia | 31 | 25.388-36.612 | 0.172 | 26 | 22.971-30.868 | 0.176 |
Femur | 31 | 25.042-38.833 | 25 | 18.766-31.234 | ||
Humerus | 35 | 19.171-53.424 | 28 | 12.358-42.842 | ||
Other | 41 | 36.846-45.617 | 32 | 28.577-35.500 | ||
Histologic subtype (n) | ||||||
Special | 67 | 60.383-74.817 | 0.000 | 56 | 46.412-65.988 | 0.000 |
Conventional | 32 | 28.044-36.096 | 24 | 20.849-27.852 | ||
Enneking stage | ||||||
I, II | 40 | 35.700-44.668 | 0.000 | 31 | 27.668-35.556 | 0.000 |
III | 15 | 10.727-19.580 | 9 | 5.144-13.318 | ||
Size (at diagnosis) (cm) | ||||||
< 5 | 44 | 39.965-49.193 | 0.000 | 35 | 31.469-39.636 | 0.000 |
> 5 | 19 | 15.395-23.938 | 13 | 9.586-16.914 | ||
Alkaline phosphatase (u/L) | ||||||
< 500 | 33 | 30.480-38.391 | 0.162 | 26 | 22.971-30.868 | 0.151 |
> 500 | 31 | 25.388-36.612 | 23 | 16.055-29.945 | ||
Serum albumin (g/L) | ||||||
< 30 | 35 | 31.224-39.031 | 0.211 | 27 | 22.845-31.547 | 0.278 |
> 30 | 31 | 25.308-35.578 | 24 | 18.454-28.567 | ||
ESR (mm/hr) | ||||||
< 30 | 34 | 31.135-39.023 | 0.060 | 26 | 21.975-30.086 | 0.126 |
> 30 | 31 | 25.886-34.479 | 23 | 19.333-28.792 | ||