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Table 3 Univariate and multivariate analysis of factors associated with indeterminate QuantiFERON results in inpatients with pulmonary infiltrates

From: Performance of whole-blood interferon-gamma release assay in patients admitted to the emergency department with pulmonary infiltrates

Covariate Determinate
(n = 200)
indeterminate
(n = 84)
Univariate Multivariate
    Odds ratio 95% confidence interval Odds ratio 95% confidence interval
Age, yr 62 ± 17.1 67 ± 14.5 1.018 1.001-1.035   
Lymphocytes cells/μL 1170 ± 935 764 ± 451 0.999 0.998-0.999   
Lymphocytopenia*       
   Absence 99 (49.5) 19 (22.6) 1.0   1.0  
   Presence 101 (50.5) 65 (77.4) 3.353 1.875-5.998 2.688 1.424-5.075
Albumin, g/dL 3.4 ± 0.60 3.0 ± 0.54 0.307 0.190-0.495 0.412 0.245-0.694
ESR, mm/hr 58.3 ± 35.88 67.2 ± 32.52 1.007 1.000-1.015   
CRP, mg/dL 9.2 ± 8.43 15.7 ± 9.65 1.078 1.046-1.110 1.060 1.027-1.094
  1. Data are shown as mean ± SD or No. (%).
  2. ESR, erythrocyte sedimentation rate; CRP, C-reactive protein.
  3. QuantiFERON test was performed by using QuantiFERON®- TB Gold or QuantiFERON ®- TB Gold In-Tube.
  4. * Lymphocytopenia; < 1,000 cells/μL.