A combined preoperative red cell distribution width and carcinoembryonic antigen score contribute to prognosis prediction in stage I lung adenocarcinoma

Table 2 Univariate tests for risk factors for DFS or OS

	DFS			OS
	P	HR	95%CI	P	HR	95%CI
Age (years)
< 60	1			1
≥ 60	0.097	2.32	0.87–5.76	0.078	4.21	0.85–20.87
Gender
Male	1			1
Female	0.187	0.52	0.19–1.38	0.215	0.36	0.07–1.80
Type of resection
Lobectomy	1			1
Segmentectomy	0.635	1.36	0.39–4.77	0.650	1.64	0.19–13.88
Micropapillary or solid component
Without or unknown	1			1
With	0.014^*	3.20	1.26–8.13	0.014^*	6.04	1.44–25.27
Tobacco use history
Never	1			1
Current + former	0.001^*	5.10	2.01–12.96	0.010^*	6.59	1.57–27.68
Alcohol use history
Never	1			1
Current + former	0.351	1.56	0.61–3.95	0.829	1.17	0.28–4.91
Hypertension
Without	1			1
With	0.029^*	2.83	1.12–7.17	0.872	1.14	0.23–5.65
Combined T stages
T₁	1			1
T₂	0.097	2.32	0.87–5.76	0.097	2.32	0.87–5.76
TNM stages
IA	1			1
IB	0.094	2.32	0.87–6.21	0.027^*	4.84	1.20–19.58
RCS subgroups
1 + 2	1			1
3	< 0.001^*	8.64	3.42–21.79	< 0.001^*	50.21	6.17–408.60

^*With significant statistical difference
DFS Disease-free survival, OS Overall survival, HR Hazard ratio, CI Confidence interval, RCS Red cell distribution width and carcinoembryonic antigen score, TNM Tumor-Node-Metastasis

ISSN: 1477-7819