Table 2. Univariate and multivariate Cox regression analyses of prognostic factors in patients with PD in training set.

Variable	Univariate analysis		Multivariate analysis
	HR (95%CI)	P-value	HR (95%CI)	P-value
Age	1.056(1.015-1.099)	0.007	1.049(1.003-1.098)	0.038
Sex
Male	Reference		Reference
Female	0.745(0.414-1.374)	0.357	0.679(0.373-1.302)	0.258
PD durations	1.085(1.036-1.136)	0.001	1.067(1.012-1.125)	0.017
HY
≤3	Reference		Reference
≥4	5.097 (2.682-9.686)	0.000	2.737(1.300-5.761)	0.008
MMSE	0.957(0.893-1.025)	0.208	1.062(0.978-1.153)	0.153
CRP
<0.3(mg/L)	Reference		Reference
0.3-0.8(mg/L)	1.053(0.443-2.504)	0.908	0.914(0.379-2.202)	0.840
>0.8(mg/L)	2.879(1.314-6.308)	0.008	1.840(0.806-4.198)	0.148
Albumin(mg/dL)	0.388(0.191-0.787)	0.009	0.537(0.252-1.145)	0.537
NSAIDs
Non	Reference		Reference
Current/ habitual	1.006(0.447-2.262)	0.989	0.874(0.375-2.034)	0.754