Potential burden of latent tuberculosis infection among household members by antituberculosis drug resistance profile, India—2016
| DST result | Proportion with DST profile | Estimated number of TB index cases | Estimated number of household tuberculosis infections |
| n (95% confidence limits)* | n (95% CI)† | n (95% CI)‡§ | |
| Drug susceptible | 72.0 (70.7 to 73.2) | 1 263 569 (1 240 755 to 1 284 629) | 3 032 566 (2 977 812 to 3 083 110) |
| Any resistance to isoniazid | 11.1 (10.3 to 12.4) | 194 800 (180 761 to 217 615) | 467 520 (433 826 to 522 276) |
| Any resistance to rifampicin | 6.2 (5.5 to 6.9) | 108 807 (96 523 to 121 092) | 261 137 (261 137 to 290 621) |
| Any resistance to fluoroquinolone | 5.1 (4.5 to 5.8) | 89 503 (78 973 to 101 788) | 214 807 (189 535 to 244 291) |
| Total | 3 976 030 (3 862 310 to 4 140 298) | ||
*Source data: Ministry of Health and Family Welfare. Government of India. Report of the first nationwide antituberculosis drug resistance survey—India, 2014–2015. 70
†Revised National Tuberculosis Control Programme Case Reporting Data, 2016. N=1 754 957.30
‡Office of the Registrar General and Census Commissioner, India. HH-01. Normal Households by Household Size. Mean household size=4.8.31
§Assumes 50% latent tuberculosis infection rate.10 ,25–29
DST, drug susceptibility testing.