Obesity Is an Independent Predictor of Poor Survival in Metastatic Breast Cancer: Retrospective Analysis of a Patient Cohort Whose Treatment Included High-Dose Chemotherapy and Autologous Stem Cell Support

Table 2

Independent risk factors for time from initial diagnosis to metastasis.

		Years from initial diagnosis to metastasis
		Median (𝑄1,𝑄3)	Multiple linear model*
			Coefficients (95% CI)	𝑃
	𝑛		Intercept : 0.87 (0.48, 1.26 )
BMI
<30	73	1.85 (0.97, 3.26 )	Ref
≥30	23	1.14 (0.32, 1.97 )	−0.44 (−0.85, −0.02 )	0.04
Stage at diagnosis
I	21	2.06 (1.37, 3.26 )	Ref
II	43	2.01 (1.41, 3.29 )	0.02 (−0.44, 0.48)	0.92
III	23	0.72 (0.19, 1.94 )	−0.93 (−1.46, −0.41)	0.0006
IV (=metastasis)	8	N/A	N/A	N/A

^∗log(years from initial diagnosis to metastasis+ 0.1) was used as the outcome.