TABLE 1.

Demographic characteristics and clinical details for patients in this studyb

VariableNo. (%) of adults in groupNo. (%) of children in group
Patients with active TB (n = 33)Contact tracing study (n = 206)Screening for LTBIa (n = 253)Patients with active TB (n = 9)Contact tracing study (n = 64)Screening for LTBIa (n = 61)
Gender
    Female11 (33.3)121 (58.7)101 (39.9)2 (22.2)37 (57.8)32 (52.5)
    Male22 (66.7)85 (41.3)152 (66.1)7 (77.8)27 (42.2)29 (47.5)
Age
    <5 yr3 (33.3)9 (14.1)3 (4.9)
    5-18 yr6 (66.7)55 (85.9)58 (95.1)
    18-35 yr23 (69.7)136 (66)138 (54.5)
    35-75 yr8 (24.2)59 (28.6)115 (45.4)
    >75 yr2 (6.1)11 (5.4)0 (0)
BCG vaccination
    Yes9 (27.3)82 (39.8)97 (38.3)1 (11.1)46 (71.9)39 (63.9)
    No24 (72.7)124 (60.2)156 (61.7)8 (88.9)18 (28.1)22 (36.1)
Immunosuppression status
    AIDS patients0 (0)0 (0)19 (7.5)0 (0)0 (0)0 (0)
    Treatment with systemic steroids0 (0)0 (0)2 (0.8)0 (0)0 (0)0 (0)
    Cancer chemotherapy0 (0)1 (0.5)3 (1.2)0 (0)0 (0)0 (0)
    None33 (100)205 (99.5)229 (90.5)9 (100)64 (100)61 (100)
Country of birth
    Immigrants from countries with high prevalence of TB17 (51.5)97 (47.1)82 (32.4)2 (12.5)45 (69.8)42 (68.9)
    Autochthon Spanish population16 (48.5)109 (52.9)171 (67.6)7 (87.5)19 (30.2)19 (31.1)
  • a Conducted on recent immigrants from countries with a high prevalence of TB, the homeless, or school teachers enrolled during preemployment examinations.

  • b There were a total of 626 participants in the study.