Table 1.

Multivariable Cox regression analysis in lymph‐node‐negative untreated patients with ESR1+/ERBB2‐ tumors (297 patients, 53 unfavorable events)

Variable	HR (95% CI)	P‐value
μENV (+ve, −ve)	2.098 (1.214–3.624)	0.00791
Age (> 50, ≤ 50)	1.334 (0.752–2.367)	0.325
Size (> 2 cm, ≤ 2cm)	2.093 (1.194–3.669)	0.00990
GGI (> 0, ≤ 0)	6.214 (3.076–12.55)	3.54E‐07
GGI: gtime	0.112 (0.027–0.466)	0.00262