Table 2.

Factors affecting survival- univariate analysis

Parameter	N	10 yr EFS %	P value	10-yr PFS %	P value	10 yr OS %	P value
Age
≤ 35 years	211	46.8	0.128	76	0.57	78.5	0.1
> 35 years	232	40.3		74		73.5
Sokal risk group
Low	97	51.3	0.098	80	0.17	77.5	0.42
Intermediate/high	346	40.6		74		75.5
Hasford score
Low	192	50.2	0.028	81	0.018	79.3	0.06
Intermediate/high	251	37.6		71		73.1
EUTOS score
Low	379	43.6	0.62	77	0.009	76.3	0.48
High	64	40.0		63		74.0
Adherence
Adherent	304	48.9	0.001	77	0.35	77.2	0.65
Non-adherent	139	30.7		69		72.4
Prior treatment
Absenta	284	45.2	0.086	78	0.095	78.1	0.115
Present	159	39.6		71		72.0

^aUse of hydroxyurea up to 1 month before starting imatinib was considered as no prior therapy