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Table 2 Factors significantly related to time to death in the final Cox proportional hazards model of survival of bighorn sheep translocated to the San Andres Mountain, New Mexico, USA.

From: Wildlife translocation: the conservation implications of pathogen exposure and genetic heterozygosity

Factor Hazard Ratio Std. Err. Z P>|z| 95% Conf. Interval
Age 3 to <6 yr a 1.47 0.664 0.85 0.397 0.60 - 3.56
Age ≥6 yr a 3.37 1.75 2.34 0.019 1.22 - 9.32
BRSV antibodies b 0.37 0.18 -2.03 0.043 0.14 - 0.97
  1. a Youngest age class (1 to <3 years old) designated as reference category
  2. b BRSV = bovine respiratory syncitial virus