Table 3 Significant variables observed on single factor unconditional logistic regression and variance inflation factor diagnosis.

From: Risk factors of diffuse alveolar hemorrhage in Chinese patients with systemic lupus erythematosus

Variables

VIF

Age

1.218

SLE duration

1.143

Epilepsy

1.075

Fever

1.244

Serositis

1.208

Oral ulcer

1.082

Alopecia

1.075

Anemia

1.304

Urine protein

1.514

Urine RBC

1.464

24-h urine protein

1.335

Hypoproteinemia

1.535

Creatinine

1.068

Urea nitrogen

1.092

LDH

1.207

ESR

1.156

Elevated CRP

1.170

IgM

1.023

IgA

1.059

SLEDAI

1.576

Pulmonary hypertension

1.091

ILD

1.041

Pathogen infection

1.170

  1. VIF, variance inflation factor; SLE, systemic lupus erythematosus; RBC, red blood cell; LDH, lactate dehydrogenase; ESR, erythrocyte sedimentation rate; CRP, C-reactive protein; Ig, immunoglobulin; ILD, interstitial lung disease; SLEDAI, systemic lupus erythematosus disease activity index; elevated CRP, CRP > 8 mg/L.
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