TABLE 1.

Demographics and multivariate logistic regression for concordance between T-SPOT.TB and TST (n = 390)

VariableNo. (%) of subjectsT-SPOT.TB/TST concordancea
Crude OR (95% CI)Adjusted OR (95% CI)
Age (per yr increase)390 (100)0.96 (0.94-0.98)*0.96 (0.94-0.99)*
Gender
    Male331 (84.9)1.001.00
    Female59 (15.1)0.69 (0.35-1.36)0.73 (0.35-1.51)
Ethnicity
    Caucasian131 (33.6)1.001.00
    African-American166 (42.6)1.01 (0.55-1.84)0.78 (0.41-1.52)
    Hispanic93 (23.8)1.11 (0.54-2.26)0.83 (0.36-1.94)
Birth country
    United States348 (89.2)1.001.00
    Other42 (10.8)0.73 (0.33-1.61)0.72 (0.27-1.91)
Prior incarceration
    No46 (11.8)1.001.00
    Yes344 (88.2)1.02 (0.45-2.29)1.03 (0.42-2.50)
Intravenous drug use
    No341 (87.4)1.001.00
    Yes49 (13.6)0.41 (0.21-0.80)*0.41 (0.19-0.88)*
Lived in shelterb
    No327 (83.8)1.001.00
    Yes63 (16.2)0.54 (0.29-1.03)0.73 (0.36-1.50)
HIV status
    Negative372 (95.4)1.001.00
    Positive18 (4.6)3.67 (0.48-28.04)5.08 (0.64-40.22)
  • a *, P < 0.05.

  • b History of living in nursing homes, homeless shelters, drug rehabilitation centers, or “bunkhouses.”