Reported Tuberculosis in the United States, 2013
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Table 22: Epidemiologic Characteristics of Cases in GENType Clusters1 by Alert Levels Based on Log-likelihood Ratios (LLR)2: United States, 2011–2013
| Case Characteristics | Unique | Alert Levels for Clustered Cases3 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Clustered | Non-alerted (LLR <5) |
Medium (LLR 5 – <10) | High (LLR ≥10) | |||||||
| No. | (%) | No. | (%) | No. | (%) | No. | (%) | No. | (%) | |
| Total | 17,077 | (78.7) | 4,625 | (21.3) | 2,652 | (57.3) | 997 | (21.6) | 976 | (21.1) |
| Race and Ethnicity | ||||||||||
| Hispanic or Latino | 4,746 | (77.0) | 1,415 | (23.0) | 923 | (65.2) | 305 | (21.6) | 187 | (13.2) |
| American Indian/Alaska Native | 165 | (51.6) | 155 | (48.4) | 17 | (11) | 31 | (20.0) | 107 | (69.0) |
| Asian | 5,824 | (87.0) | 870 | (13.0) | 747 | (85.9) | 71 | (8.2) | 52 | (6) |
| Black or African American | 3,205 | (68.7) | 1,457 | (31.3) | 613 | (42.1) | 356 | (24.4) | 488 | (33.5) |
| Native Hawaiian/Other Pacific Islander | 80 | (54.4) | 67 | (45.6) | 34 | (50.8) | 30 | (44.8) | 3 | (4.5) |
| White | 2,737 | (81.6) | 618 | (18.4) | 292 | (47.3) | 196 | (31.7) | 130 | (21.0) |
| Multiple Race | 287 | (89.7) | 33 | (10.3) | 22 | (66.7) | 5 | (15.2) | 6 | (18.2) |
| Unknown or Missing | 33 | (76.7) | 10 | (23.3) | 4 | (40.0) | 3 | (30.0) | 3 | (30.0) |
| Age Group (Years) | ||||||||||
| 0–4 | 80 | (35.1) | 148 | (64.9) | 74 | (50.0) | 44 | (29.7) | 30 | (20.3) |
| 5–14 | 113 | (57.7) | 83 | (42.3) | 47 | (56.6) | 15 | (18.1) | 21 | (25.3) |
| 15–24 | 1,617 | (71.6) | 642 | (28.4) | 378 | (58.9) | 139 | (21.7) | 125 | (19.5) |
| 25–44 | 5,454 | (78.9) | 1,462 | (21.1) | 839 | (57.4) | 318 | (21.8) | 305 | (20.9) |
| 45–64 | 5,152 | (75.3) | 1,687 | (24.7) | 892 | (52.9) | 375 | (22.2) | 460 | (24.9) |
| ≥65 | 4,658 | (88.5) | 603 | (11.5) | 422 | (70.0) | 106 | (17.6) | 75 | (12.4) |
| Unknown | 3 | (100.0) | 0 | (0.0) | 0 | 0.0 | 0 | (0) | 0 | 0.0 |
| Origin of Birth | ||||||||||
| U.S-born | 5,008 | (65.3) | 2,661 | (34.7) | 1,130 | (42.5) | 710 | (26.7) | 821 | (30.9) |
| Foreign-born | 12,056 | (86.1) | 1,952 | (13.9) | 1,516 | (77.7) | 285 | (14.6) | 151 | (7.7) |
| Unknown or Misssing | 13 | (52.0) | 12 | (48.0) | 6 | (50.0) | 2 | (16.7) | 4 | (33.3) |
| Disease Site | ||||||||||
| Pulmonary Only | 12,147 | (76.7) | 3,698 | (23.3) | 2,093 | (56.6) | 807 | (21.8) | 798 | (21.6) |
| Extrapulmonary | 3,033 | (86.9) | 457 | (13.1) | 287 | (62.8) | 91 | (19.9) | 79 | (17.3) |
| Both | 1,886 | (80.1) | 468 | (19.9) | 272 | (58.1) | 99 | (21.2) | 97 | (20.7) |
| Unknown | 11 | (84.6) | 2 | (15.4) | 0 | 0.0 | 0 | 0.0 | 2 | (100.0) |
| Sputum Smear | ||||||||||
| Positive | 7,836 | (75.8) | 2,504 | (24.2) | 1,390 | (55.5) | 574 | (22.9) | 540 | (21.6) |
| Negative | 6,898 | (80.8) | 1,637 | (19.2) | 992 | (60.6) | 306 | (18.7) | 339 | (20.7) |
| Not Done | 2,321 | (82.8) | 482 | (17.2) | 270 | (56.0) | 117 | (24.3) | 95 | (19.7) |
| Unknown or Missing | 22 | (91.7) | 2 | (8.3) | 0 | (0.0) | 0 | 0.0 | 2 | (100.0) |
| Cavitary disease | ||||||||||
| Yes | 178 | (75.4) | 58 | (24.6) | 22 | (37.9) | 20 | (34.5) | 16 | (27.6) |
| No | 1,348 | (79.6) | 346 | (20.4) | 213 | (61.6) | 63 | (18.2) | 70 | (20.2) |
| Unknown or Missing | 360 | (84.9) | 64 | (15.1) | 37 | (57.8) | 16 | (25) | 11 | (17.2) |
| Homeless Within Past Year | ||||||||||
| Yes | 718 | (56.4) | 556 | (43.6) | 203 | (36.5) | 80 | (14.4) | 273 | (49.1) |
| No | 16,210 | (80.1) | 4,023 | (19.9) | 2,420 | (60.2) | 908 | (22.6) | 695 | (17.3) |
| Unknown or Missing | 149 | (76.4) | 46 | (23.6) | 29 | (63.0) | 9 | (19.6) | 8 | (17.4) |
| Excess Alcohol Use Within the Past Year | ||||||||||
| Yes | 1,781 | (63.9) | 1,005 | (36.1) | 396 | (39.4) | 248 | (24.7) | 361 | (35.9) |
| No | 15,026 | (81.0) | 3,531 | (19.0) | 2,202 | (62.4) | 736 | (20.8) | 593 | (16.8) |
| Unknown or Missing | 270 | (75.2) | 89 | (24.8) | 54 | (60.7) | 13 | (14.6) | 22 | (24.7) |
| Injecting Drug Use Within Past Year | ||||||||||
| Yes | 186 | (59.4) | 127 | (40.6) | 67 | (52.8) | 19 | (15) | 41 | (32.3) |
| No | 16,618 | (79.0) | 4,408 | (21.0) | 2,535 | (57.5) | 965 | (21.9) | 908 | (20.6) |
| Unknown or Missing | 273 | (75.2) | 90 | (24.8) | 50 | (55.6) | 13 | (14.4) | 27 | (30) |
| Non-Injecting Drug Use Within Past Year | ||||||||||
| Yes | 922 | (55.5) | 740 | (44.5) | 303 | (40.9) | 164 | (22.2) | 273 | (36.9) |
| No | 15,864 | (80.7) | 3,796 | (19.3) | 2,300 | (60.6) | 820 | (21.6) | 676 | (17.8) |
| Unknown or Missing | 291 | (76.6) | 89 | (23.4) | 49 | (55.1) | 13 | (14.6) | 27 | (30.3) |
| Resident of a Correction Facility at the Time of Diagnosis | ||||||||||
| Yes | 608 | (720.) | 236 | (28.0) | 120 | (50.9) | 51 | (21.6) | 65 | (27.5) |
| No | 16,406 | (79.0) | 4,371 | (21.0) | 2,523 | (57.7) | 944 | (21.6) | 904 | (20.7) |
| Unknown or Missing | 63 | (77.8) | 18 | (22.2) | 9 | (50.0) | 2 | (11.1) | 7 | (38.9) |
| HIV Status | ||||||||||
| Positive | 957 | (70.7) | 397 | (29.3) | 210 | (52.9) | 70 | (17.6) | 117 | (29.5) |
| Negative | 13,623 | (78.5) | 3,729 | (21.5) | 2,146 | (57.6) | 809 | (21.7) | 774 | (20.8) |
| Refused | 737 | (86.1) | 119 | (13.9) | 73 | (61.3) | 35 | (29.4) | 11 | (9.2) |
| Not Offered | 1,312 | (81.3) | 301 | (18.7) | 172 | (57.1) | 65 | (21.6) | 64 | (21.3) |
| Unknown, Missing or Indeterminate | 488 | (85.0) | 79 | (15.0) | 51 | (64.6) | 18 | (22.8) | 10 | (12.7) |
| Multi-Drug Resistant TB | ||||||||||
| Yes | 248 | (83.2) | 50 | (16.8) | 43 | (86.0) | 5 | (10.0) | 2 | (4.0) |
| No | 16,460 | (78.6) | 4,484 | (21.4) | 2,567 | (57.3) | 975 | (21.7) | 942 | (21.0) |
| Unknown or Missing | 369 | (80.2) | 91 | (19.8) | 42 | (46.2) | 17 | (18.7) | 32 | (35.2) |
1 GENType clusters have two or more cases with matching spoligotype and 24-locus locus mycobacterial interspersed repetitive unit-variable number tandem repeat type within a county during the specified 3-year time period .
2 Alert levels are based on a log-likelihood ratio (LLR), which calculates the geographic concentration of a genotype in a county compared to the rest of the country during a 3-year period.
3 There were 4,625 cases in 1,532 alerted clusters: 976 cases were in 101 (6.6%) high alert clusters; 997 cases were in 338 (22.1%) medium alert clusters and 2,652 were in 1,093 (71.3%) non-alert clusters.
Note: Case counts for race categories (American Indian or Alaska Native, Asian, Black or African American, Native Hawaiian or Other Pacific Islander, and White) are mutually exclusive and do not include persons of Hispanic ethnicity or multiple race. Multiple Race does not include persons of Hispanic ethnicity.
See Surveillance Slide #36.
- Page last reviewed: September 30, 2014
- Page last updated: September 30, 2014
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