Table 3.

Parameter estimates and 95% confidence interval for log-normal accelerated failure time model in women

Variable	Time ratio (95% CI)	P
Age
<50	Reference
≥50	0.67 (0.51-0.88)	0.004*
Grade
I	Reference
II	0.60 (0.40-0.91)	0.017*
III	0.40 (0.26-0.62)	<0.001*
IV	0.32 (0.18-0.56)	<0.001*
Morphology
DC	Reference
LC	2.32 (1.20-4.48)	0.012*
Other	0.65 (0.42-1.02)	0.060*

*P<0.05. CI=Confidence interval; DC=Ductal carcinoma; LC=Lobular carcinoma