Table 4.

Overall survival of patients within different subtypes compared between patients aged 50–69 years (ESG) and patients ≥70 years (NESG)

	3-y-OS (%)	5-y-OS (%)	7-y-OS (%)
ESG
Luminal A N = 1111 → 52 events	98.7	97.1	93.8
Luminal B N = 504 → 51 events	95.5	91.6	88.8
HER2-like N = 376 → 34 events	96.5	92.6	88.4
Basal-like N = 180 → 27 events	88.0	83.5	82.2
NESG
Luminal A N = 659 → 128 events	88.7	78.5	70.2
Luminal B N = 333 → 105 events	83.4	70.1	55.5
HER2-like N = 208 → 68 events	79.7	68.5	59.6
Basal-like N = 92 → 27 events	74.7	68.1	60.7