Table 1: Association of ESR1m with the site of metastasis (n (%)).

Visceral MetastasisNonvisceral metastasisTotal

ESR1 mutation8 (25.0%)3 (6.7%)11 (14.3%)
ESR1 without mutation24 (75.0%)42 (93.3%)66 (85.7%)
Total32 (41.6%)45 (58.4%)77 (100.0%)