Comparison of mortality rate with children living in the house of a TB case 3 years before exposure starts
| Age (months) | Exposed (N=720) | Unexposed (N=11543) | |||||
| Deaths | 100 PYO | Rate | Deaths | 100 PYO | Rate | HR (95% CI) | |
| 3–11 | 6 | 0.70 | 8.6 | 199 | 0.70 | 7.8 | 1.14 (0.5 to 2.5) |
| 12–35 | 19 | 3.83 | 5.0 | 348 | 3.83 | 5.9 | 0.85 (0.5 to 1.3) |
| 36–60 | 5 | 3.03 | 1.6 | 87 | 3.03 | 1.8 | 0.91 (0.4 to 2.2) |
| All | 30 | 7.56 | 4.0 | 634 | 7.56 | 4.8 | 0.90 (0.6 to 1.3) |
HR from a model with age as underlying time.
PYO, person-years of observation.