Diagnosis of Latent Tuberculosis in Patients with Systemic Lupus Erythematosus: T.SPOT.TB versus Tuberculin Skin Test

Table 1

Clinical and laboratory characteristics of the SLE patients studied.

Clinical characteristics
Age, years, mean ± SD	42.71±14.88
Females, 𝑛 (%)	85 (92.4)
SLE diagnosis duration, months (IQR)	132 (60–216)
Risk factor for LTBI, 𝑛 (%)	9 (9.8)
BCG vaccinated, 𝑛 (%)
Nonvaccinated	90 (97.8)
Vaccinated	2 (2.2)
Treatment regimen, 𝑛 (%)
<7.5 mg prednisone	39 (42.4)
>7.5 mg prednisone	18 (19.6)
IS drugs	37 (40.2)
Hydroxychloroquine	79 (85.9)
SLEDAI, mean ± SD	3.33±2.73
Laboratory findings
dsDNAn levels, median (IQR)	14.50 (4.77–44.75)
C3 mg/dL, mean ± SD	96.97±21.45
C4 mg/dL, mean ± SD	16.50±7.64
Lymphocyte cells/uL, mean ± SD	1527.65±585.26
CD4 cells/uL, ±SD	644.82±283.29
CD4 (%)
≤200	2.3
200–500	26.1
≥500	71.6
CD8 cells/uL, ±SD	495.67±256.89
B cells/uL, median (IQR)	119.80 (65.35–215.40)
NK cells/uL, median (IQR)	167.50 (110.50–229.90)