Table 3

Characteristics of tuberculosis cases according to mode of identification in a highly endemic prison
Systematic screening Screening at entry Passive detection p
Anamnestic variables
History of incarceration 54/118 (45.8%) 28/49 (57.1%) 32/79 (40.5%) .18
Total duration in jail* 48.5 (35.8) 41.0 (35.0) 42.0 (31.8) .30
History of TB treatment 27/118 (22.9%) 9/49 (18.4%) 22/79 (27.8%) .48
Clinical and radiological variables
At least one symptom 65/118 (55.1%) 27/49 (55.1%) 69/73 (94.5%) .00001
Cough ≥ 3 weeks 39/117 (33.3%) 15/48 (31.2%) 41/73 (56.2%) .0005
Fever 32/118 (27.1%) 11/49 (22.4%) 35/73 (47.9%) .0004
Weight loss 40/118 (33.9%) 14/49 (28.6%) 19/73 (26.0%) .83
Thoracic pain 34/118 (28.8%) 15/49 (30.6%) 44/73 (60.3%) .00001
Night swears 19/118 (16.1%) 9/49 (18.4%) 15/73 (20.5%) 0.008
Cavity 26/118 (22.0%) 11/49 (22.4%) 27/79 (34.2%) .14
Extensive lesions** 45/118 (38.1%) 22/49 (44.9%) 35/79 (44.3%) .61
HIV seropositive 3/105 (2.9%) 1/27 (3.7%) 0/24 .75
Bacteriological variables
Smear (+) 57/118 (48.3%) 25/49 (51.0%) 60/79 (76.0%) .0004
Smear (−) / Culture (+) 23/118 (19.5%) 4/49 (8.2%) 8/79 (10.1%)
Smear (−) / Culture (−) 38/118 (32.2%) 20/49 (40.8%) 11/79 (13.9%)

*Mean (s.d.) in months; **Presence of bilateral lesions and/or cavity.

Sanchez et al.

Sanchez et al. BMC Public Health 2013 13:983   doi:10.1186/1471-2458-13-983

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