Table 1.

Univariate and multivariate COX regression analyses for mortality

Univariate analysis	HR	95% CI	P
Male	1.903	1.029–3.522	0.040
Onset age >50 years	3.339	1.786–6.243	<0.001
Onset age <18 years	1.001	0.535–1.872	0.998
Onset to diagnosis >1 year	1.620	1.020–2.573	0.041
Baseline organ damage	2.594	1.620–4.153	<0.001
N	2.323	1.444–3.738	0.001
HEMA	1.310	0.825–2.081	0.252
ILD	1.828	0.79504.206	0.156
NPLE	2.539	1.267–5.087	0.009
PAH	3.693	1.901–7.173	<0.001
SERO	2.090	1.276–3.422	0.003
Anti-dsDNA	0.769	0.492–1.202	0.249
Anti-SM	1.001	0.561–1.785	0.997
Anti-RNP	1.512	0.817–2.798	0.188
Anti-SSA	1.411	0.877–2.271	0.156
Anti-SSB	1.302	0.688–2.464	0.417
Anti-rRNP	0.951	0.429–2.108	0.901
APL	1.150	0.581–2.277	0.688
Low completement	0.958	0.603–1.522	0.856
Multivariate analysis	HR	95% CI	P
Male	1.747	0.936–3.262	0.080
Onset age >50 years	3.347	1.781–6.287	<0.001
Onset to diagnosis >1 year	1.604	1.006–2.558	0.047
LN	2.055	1.264–3.341	0.004
NPLE	2.550	1.252–5.196	0.010
PAH	2.400	1.170–4.920	0.017
SERO	1.575	0.938–2.646	0.086
Baseline organ damage	1.907	1.169–3.110	0.010

HEMA, hematologic involvement; ILD, interstitial lung disease; LN, lupus nephritis; PAH, pulmonary arterial hypertension; SERO, serositis.