A Novel Method for Dynamically Assessing the Prognosis of Patients with pT1 Gastric Cancer: A Large Population-Based Dynamic Prognostic Analysis

Table 3

Multivariate Cox hazards regression analyses of independent prognosis factors for the prediction nomogram.

Characteristics	Multivariate analysis
	β-coefficients	HR	95% CI	value
Age				<0.001
≤40	0	Ref
>40 and ≤50	0.259	1.296	0.356–4.720	0.694
>50 and ≤60	0.589	1.802	0.546–5.951	0.334
>60 and ≤70	1.312	3.715	1.170–11.794	0.026
>70	1.809	6.104	1.943–19.174	0.002
Size				0.014
≤1 cm	0	Ref
>1 cm and ≤2 cm	0.053	1.054	0.740–1.501	0.770
>2 cm and ≤3 cm	0.237	1.268	0.879–1.828	0.204
>3 cm and ≤4 cm	0.574	1.776	1.211–2.603	0.003
>4 cm	0.126	1.134	0.756–1.701	0.542
pT stage				0.001
pT1a	0	Ref
pT1b	0.441	1.554	1.198–2.016	0.001
pN stage				<0.001
pN0	0	Ref
pN1	0.838	2.311	1.697–3.147	<0.001
pN2	1.100	3.003	2.001–4.506	<0.001
pN3a	1.577	4.838	2.384–9.818	<0.001
pN3b	1.857	6.407	2.469–16.626	<0.001
Number of retrieved LNs				<0.001
≤15	0	Ref
>15	−0.501	0.606	0.473–0.776	<0.001
Adjuvant therapy				0.367
Yes		Ref
No/unknown		1.164	0.837–1.619	0.367

HR, hazard rate; CI, confidence interval. Bold values indicate the significant difference with P < 0.05.