Table 1 Clinicopathologic characteristics of patients with invasive ductal carcinoma

n

Age at diagnosis (years)

   ≤ 50

   > 50

Age range (years)

Tumor size (cm)

   < 2

   ≥ 2

Number of positive lymph nodes

   0

   1–3

   > 3

Histological grade

   1

   2

   3

Adjuvant therapy

   None

   Endocrine therapy

   Chemotherapy

   Combined

Follow up (months)

   Mean

   Median

   Range