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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