Primary cardiac myxofibrosarcoma: case report, literature review and pooled analysis

BMC Cancer

Table 6 Overall survival calculated by cox proportional hazards models

Variables	Group	Log-rank P-value	Univariate		Multivariate^a
Variables	Group	Log-rank P-value	P-value	HR (95% CI)	P-value	HR (95% CI)
Age (year)	< 40			1 (Ref)		1 (Ref)
Age (year)	≥ 40	0.220	0.236	2.00 (0.64–6.32)	0.256	1.99 (0.61–6.53)
Sex	female			1 (Ref)		1 (Ref)
Sex	male	0.725	0.730	0.83 (0.28–2.47)	0.968	0.98 (0.31–3.06)
Location	right heart			1 (Ref)		1 (Ref)
Location	left heart	0.299	0.329	2.77 (0.36–21.51)	0.453	2.35 (0.43–19.10)
Mean diameter (mm)	< 40			1 (Ref)		1 (Ref)
Mean diameter (mm)	≥ 40	0.055	0.085	6.38 (0.76–53.29)	0.059	6.79 (0.89–61.42)
Histologic grading	intermediate/low-grade			1 (Ref)		1 (Ref)
Histologic grading	high-grade	0.063	0.103	6.25 (0.69–56.59)	0.081	11.45 (0.74–177.12)
Post-treatment	yes			1 (Ref)		1 (Ref)
Post-treatment	no	0.723	0.729	1.22 (0.40–3.71)	0.668	1.34 (0.54–3.89)

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