Table 3.
Results of the univariable survival analyses performed on 463 tuberculosis outbreaks declared in 1997–2009 in the Autonomous Community of Madrid after removal of outliers (n = 18) and outbreaks resolved by herd depopulation (n = 34)
| Survival Analysis | Number of outbreaks | Resolved outbreaks | Median time for recovery of OTF status (days) (95% CI) | Probability (hazard ratio) (95% CI) | P |
|---|---|---|---|---|---|
| Productive type |
|
|
|
|
|
| Beef |
300 |
292 |
532 (453–610) |
NA |
NA |
| Dairy |
131 |
118 |
349 (316–393) |
1.46 (1.17-1.81) |
<0.001 |
| Bullfighting |
32 |
28 |
607 (385–751) |
0.9 (0.61-1.33) |
0.6 |
| Period |
|
|
|
|
|
| Before 2006 |
365 |
365 |
517 (453–575) |
NA |
NA |
| Since 2006 | 98 | 73 | 307 (259–359) | 2.18 (1.68-2.83) | <0.001 |
NA non-applicable.