Table 5 Logistic regression analysis of demographic and clinical factors associated with receipt of adjuvant and/or neoadjuvant chemotherapy

Age at diagnosis (years)

  <50

Referent

  50 to 69

0.701

0.407 to 1.207

0.200

  ≥70

0.337

0.169 to 0.674

0.002

Comorbidities

  None

Referent

  One or more

1.075

0.813 to 1.420

0.613

Menopausal status

  Premenopause

Referent

  Menopause

1.319

0.773 to 2.249

0.310

Residential status

  Rural

Referent

  Urban

1.265

0.979 to 1.633

0.072

Tumor size

  ≤2

Referent

  >2

1.266

0.888 to 1.804

0.192

Lymph node metastasis

  Negative

Referent

  Positive

1.933

1.508 to 2.477

<0.001

Distant metastasis

  Negative

Referent

  Positive

2.639

0.326 to 21.335

0.363

Hormone-receptor status

  ER- and PR-

Referent

  ER + and/or PR+

1.392

0.986 to 1.964

0.060