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Table 4 Cox regression uni- and multivariate analyses for the occurrence of cardiovascular events in patients with SLE

From: Evaluation of left ventricular systolic function in patients with systemic lupus erythematosus using ultrasonic layer-specific strain technology and its association with cardiovascular events: a long-term follow-up study

Clinical and echocardiographic parameter

Univariate analysis

Multivariate analysis

HR(95% CI)

P-value

HR(95% CI)

P-value

Age

1.045 (1.021–1.073)

0.031

1.160 (0.339–3.375)

0.471

Sex, female

0.728 (0.264–2.011)

0.540

  

Systolic blood pressure

1.021 (1.005–1.038)

0.010

0.984 (0.959–1.089)

0.223

Diabetes mellitus

1.320 (0.781–2.170)

0.312

  

SLEDAI-2000 score

1.030 (1.011–1.050)

0.008

1.019 (0.994–1.044)

0.162

Positive anti-double-stranded DNA

1.356 (0.813–2.261)

0.244

  

Positive antiphospholipid antibodies

1.396(0.765–2.548)

0.277

  

Glucocorticoids

0.956 (0.565–1.618)

0.868

  

IVSd

0.983 (0.799–1.208)

0.868

  

LVEDd

0.997 (0.943–1.055)

0.926

  

EDV

1.006 (0.991–1.021)

0.462

  

LVEF

0.962 (0.910–1.018)

0.962

  

LVM

1.001 (0.991–1.021)

0.802

  

E/ e′

0.973 (0.784–1.207)

0.801

  

sPAP

1.064 (1.041–1.088)

 < 0.001

1.018 (0.848–1.431)

0.056

Endocardial LS

1.055 (1.031–1.156)

 < 0.001

1.014 (1.002–1.035)

0.025

LS gradient

1.076 (0.701–1.645)

0.738

  

Endocardial CS

2.508 (1.501–4.191)

 < 0.001

1.051 (1.027–1.077)

 < 0.001

CS gradient

1.114 (0.811–1.529)

0.505

  
  1. NOTE: HR hazard ratios SLEDAI-2000 score, SLE disease activity index-2000 score, IVSd interventricular septum diastolic, LVEDd left ventricular end-diastolic diameter; EDV end-diastolic volume, LVEF left ventricular ejection fraction, LVM left ventricular mass, LVMI left ventricular mass index, LAVI left atrial volume index, E early-diastolic velocity and the average values of early-diastolic velocities at the septal and lateral mitral annulus ratio, sPAP systolic pulmonary artery pressure, LS longitudinal strain, CS circumferential strain