Table 3: Indications for adjuvant therapy and rates of treatment (1989–1999).

IndicationAge  Total 𝑃   value
70–7475–79≥80

Positive lymph nodes, number40253196 NA

 Received chemotherapy, number (%) 𝑃 1
NS
  Yes22 (55)12 (48)11 (35)45 (47)
  No18 (45)13 (52)20 (64)51 (53)

Positive margins of resection, number472744113 NA

 Received radiation therapy, number (%) 𝑃 0 . 0 5
S
   Yes42 (89)21 (78)30 (68)98 (87)
   No5 (11)6 (22)14 (32)25 (13)

Progesterone receptor positive, number (%)63 (42)32 (32)45 (32)140 NA

Estrogen receptor positive, number (%)69 (46)44 (43)58 (41)171 NA

  Received hormonal therapy, number (%) 𝑃 1
NS
   Yes58 (84)38 (86)52 (90)148 (86)
   No11 (16)6 (14)6 (10)23 (14)

Abbreviation: NA: not applicable; NS: not significant; S: significant.