Table 1 Epidemiologic and Clinical Characteristics of the Study Population
Characteristicb | All Contacts N = 1272 | Contact Outcome Group | |||
|---|---|---|---|---|---|
TB disease N = 60 | Converter N = 93 | TST+a N = 502 | TST-b N = 617 | ||
n (%) | n (%) | n (%) | n (%) | n (%)_ | |
Age (yrs) | |||||
0–14 | 136 (11) | 8 (13) | 8 (9) | 25 (5) | 95 (15) |
15–24 | 300 (24) | 16 (27) | 20 (22) | 131(26) | 133 (22) |
25–44 | 460 (36) | 18 (30) | 35 (38) | 198 (39) | 209 (34) |
45–64 | 304 (24) | 18 (20) | 24 (26) | 116 (23) | 146 (24) |
> = 65 | 72 (6) | 0(0) | 6(6) | 32 (6) | 34 (5) |
Sex | |||||
Male | 678 (53) | 42 (70) | 47(50) | 310 (62) | 279 (45) |
Female | 594 (47) | 18 (30) | 46(50) | 192 (38) | 338 (55) |
Race | |||||
White | 155 (12) | 6 (10) | 10 (11) | 37 (7) | 102 (17) |
Black | 630 (50) | 20 (33) | 47 (51) | 211(42) | 352 (57) |
Other | 487 (38) | 34 (57) | 36 (39) | 254 (51) | 163 (26) |
Birthplace | |||||
US/Canada | 842 (66) | 30 (50) | 60 (64) | 220 (44) | 532 (86) |
Other | 430 (34) | 30 (50) | 33 (36) | 282 (56) | 85 (14) |
HIVa | |||||
Negative | 671 (53) | 50 (83) | 55 (59) | 256 (51) | 310 (50) |
Unknown | 601 (47) | 10 (17) | 38 (41) | 246 (49) | 307 (50) |
Location of exposure | |||||
Household | 812 (64) | 26 (43) | 73 (78) | 341(68) | 372 (60) |
School | 44 (3) | 0 (0) | 2 (2) | 22 (4) | 20 (3) |
Social | 286 (22) | 12 (20) | 12 (13) | 86 (17) | 176 (29) |
Workplace | 130 (10) | 22 (37) | 6 (6) | 53 (11) | 49 (8) |
Hours of exposure | |||||
Median (IQR)a | 368 (171–820) | 634 (315–768) | 400 (177–964) | 416 (195–920) | 300 (167–710) |