Table 8.

Odds ratio of long progression-free survival according to patient and tumor characteristics (logistic regression).

Characteristics	OR	95 % CI	P value
Distant disease-free survival ≥7 years	8.97	1.44–55.9	0.018
Age at first-line treatment	0.98	0.92–1.05	0.596
multiple distant metastasis	1.27	0.10–15.9	0.85
Site of distant metastasis	1.13	0.64–1.96	0.67
First-line endocrine therapy	0.43	0.09–2.06	0.29

OR, odds ratio; CI, confidence interval.