Table 3 Estimates of the number needed to screen and treat (NNS) for TB infection to prevent one case of active TB in the subsequent 5 years among groups by demographic and diabetes status in California
From: Increased risk of tuberculosis among foreign-born persons with diabetes in California, 2010–2012
Target population of TB screening and treatment | NNS base case | TB Infection prevalencea | Rate of progression to active TBa | ||
|---|---|---|---|---|---|
High | Low | High | Low | ||
All adults | 7,930 | 6,667 | 10,000 | 3,846 | 14,286 |
All foreign-born adults | 1,526 | 1,136 | 2,128 | 763 | 2,941 |
All adults with diabetes | 2,740 | 2,222 | 3,448 | 1,370 | 5,556 |
U.S.-born adults with diabetes | 9,551 | 7,143 | 12,500 | 4,762 | 20,000 |
Foreign-born adults with diabetes | 596 | 442 | 826 | 298 | 1,163 |
Foreign-born adults with diabetes by location of birth | |||||
Latin America | 741 | 526 | 877 | 370 | 1,493 |
Southeast Asia/Pacific Islands | 296 | 206 | 361 | 148 | 585 |
East Asia | 372 | 260 | 452 | 186 | 730 |
South Asia | 335 | 234 | 408 | 168 | 662 |
Europe | 2,221 | 1,493 | 3,448 | 1,111 | 4,545 |
Africa/Middle East | 384 | 270 | 562 | 192 | 769 |