Anatomical distribution of bone metastases in stage IV breast cancer: According to histological subtype

Table 1 Patients demographics

	Luminal A (n = 82)	Luminal B (n = 12)	Triple neg (n = 8)	HER 2 enrich (n = 5)	P value
Age at diagnosis	59.8 ± 12.4	58.7 ± 11.65	62.2 ± 15.8	56.21 ± 11.0	0.85
Metastasis-free survival (median, years)	2.55 (0.05-7.39)	2.75 (0.65-7.12)	1.14 (0.09-5.98)	0.37 (0.05-8.89)	0.98
BMI	26.8 ± 5.9	24.4 ± 5.7	26.3 ± 4.8	25.4 ± 8.3	0.58
Death	59 (72.8%)	9 (75%)	8 (100%)	3 (60%)	0.33

BMI: Body mass index.