Table 3. Previously treated TB cases specimens’ received at the Central TB Reference Laboratory from 2011 to 2013.
| Variable | 2011; N = 80 | % | 2012; N = 973 | % | 2013; N = 1,697 | % | Total | % |
|---|---|---|---|---|---|---|---|---|
| Zone | ||||||||
| Northern | 37 | 46.3 | 186 | 19.1 | 630 | 37 | 853 | 31.0 |
| Southern | 3 | 3.8 | 115 | 11.8 | 94 | 5.5 | 212 | 7.7 |
| Eastern | 23 | 28.8 | 459 | 47.2 | 636 | 38 | 1,118 | 40.7 |
| Lake/Central | 17 | 21.3 | 210 | 21.6 | 315 | 19 | 542 | 19.7 |
| Zone unknown | 0 | 0 | 3 | 0.3 | 22 | 1.3 | 25 | 0.9 |
| Gender | ||||||||
| Male | 51 | 63.8 | 468 | 48.1 | 1,137 | 67 | 1,656 | 60.2 |
| Female | 29 | 36.3 | 319 | 32.8 | 550 | 32 | 898 | 32.7 |
| Gender unknown | 0 | 0 | 186 | 19.1 | 10 | 0.6 | 196 | 7.1 |
| Age group | ||||||||
| <15 | 2 | 2.5 | 10 | 1 | 29 | 1.7 | 41 | 1.5 |
| 15–24 | 8 | 10 | 137 | 14.1 | 262 | 15 | 407 | 14.8 |
| 25–34 | 21 | 26.3 | 294 | 30.2 | 444 | 26 | 759 | 27.6 |
| 35–44 | 21 | 26.3 | 255 | 26.2 | 460 | 27 | 736 | 26.8 |
| 45–54 | 24 | 30 | 277 | 28.5 | 502 | 30 | 803 | 29.2 |
| Age unknown | 4 | 5 | 0 | 0 | 0 | 0 | 4 | 0.1 |
| HIV status | ||||||||
| Positive | 14 | 17.5 | 206 | 21.2 | 449 | 27 | 669 | 24.3 |
| Negative | 13 | 16.3 | 443 | 45.5 | 837 | 49 | 1,293 | 47.0 |
| HIV Unknown | 53 | 66.3 | 324 | 33.3 | 411 | 24 | 788 | 28.7 |
| TB type | ||||||||
| Pulmonary TB negative | 0 | 0 | 4 | 0.4 | 1 | 0.1 | 5 | 0.2 |
| Pulmonary TB positive | 67 | 83.8 | 957 | 98.4 | 1,685 | 99 | 2,709 | 98.5 |
| Extra pulmonary TB | 2 | 2.5 | 3 | 0.3 | 1 | 0.1 | 6 | 0.2 |
| TB type not specified | 11 | 13.8 | 9 | 0.9 | 10 | 0.6 | 30 | 1.1 |
| Smear result | ||||||||
| Positive | 36 | 45 | 645 | 66.3 | 993 | 59 | 1,674 | 60.9 |
| Negative | 44 | 55 | 328 | 33.7 | 704 | 42 | 1,076 | 39.1 |
| Culture result | ||||||||
| Positive | 34 | 42.5 | 392 | 40.3 | 755 | 45 | 1,181 | 42.9 |
| Negative | 45 | 56.3 | 532 | 54.7 | 879 | 52 | 1,451 | 52.8 |
| Contamination | 1 | 1.3 | 44 | 4.5 | 53 | 3.1 | 98 | 3.6 |
| Result not documented | 0 | 0 | 5 | 0.5 | 10 | 0.6 | 20 | 0.7 |
Keys: HIV- Human Immunodeficiency Virus; N- Number; TB- Tuberculosis.
Zones are Eastern (Mtwara, Lindi, Dar es Salaam); Northern (Arusha, Kilimanjaro, Tanga, Manyara); Southern (Iringa, Mbeya, Ruvuma, Katavi) Central (Dodoma, Morogoro, Singida) and Lake (Mwanza, Shinyanga, Tabora, Kagera, Kigoma, Geita)