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 |