Table 4. Univariate and multivariate analysis of disease-free survival in HER2-positive patients.

	Univariate analysis			Multivariate analysis
	HR (95% CI)	P value		HR (95% CI)	P value
Age	0.486 (0.152–1.551)	0.223		0.190 (0.033–1.100)	0.064
Menstrual status	0.882 (0.306–2.543)	0.817		2.825 (0.615–12.979)	0.182
Tumor size	0.929 (0.348–2.480)	0.882		1.046 (0.300–3.647)	0.944
Lymph node status	1.437 (0.533–3.874)	0.474		2.093 (0.660–6.641)	0.210
Grade	0.714 (0.199–2.560)	0.605		0.239 (0.041–1.390)	0.111
ER status	1.006 (0.348–2.904)	0.992		1.101 (0.282–4.292)	0.890
PR status	1.920 (0.673–5.474)	0.222		1.521 (0.398–5.812)	0.540
PLA2G16	0.230 (0.063–0.836)	0.026		0.151 (0.034–0.672)	0.013

HR, hazard ratio; CI, confidence interval; ER, estrogen receptor; PR, progesterone receptor; HER-2, human epidermal growth factor receptor 2.