Table 2.

Evaluation of overall survival and disease-free survival

Cohort	α	Ω	AP, mo	OS, mo	DFS, mo	OS/AP %	DFS/OS %
2007	16	3	54.00	50.90	46.90	94.28	92.14
2008	22	3	42.90	39.30	34.90	91.40	89.01
2009	18	2	30.80	29.40	22.60	95.53	76.97
2010	13	0	17.40	17.40	15.30	100.00	87.93
2011	11	0	6.30	6.30	5.60	100.00	88.79
Total	80	8	29.80	27.90	23.90	93.45	85.88

α: Survived; Ω: Died; AP: Absolute permanence; OS: Overall survival; DFS: Disease-free survival.