Multivariable Cox proportional-hazards model for the time until rehoming for horses listed with an equine rehoming charity between 1 January 2013 and 1 January 2014 (n=449)
| Variable | Level | HR | 95% CI | Wald p value | Likelihood-ratio test p value |
| Region | Mid England | 1 | 0.003 | ||
| East England | 1.04 | 0.58 to 1.87 | 0.89 | ||
| Ireland, Wales, other | 0.31 | 0.11 to 0.89 | 0.03 | ||
| South England | 1.57 | 1.01 to 2.45 | 0.04 | ||
| North England | 0.95 | 0.54 to 1.65 | 0.85 | ||
| Scotland | 1.80 | 0.80 to 4.08 | 0.16 | ||
| Radius from current owner | Less than 50 miles | 1 | 0.001 | ||
| 60 to 80 miles | 1.45 | 0.67 to 3.14 | 0.35 | ||
| 100 miles | 2.45 | 1.14 to 5.29 | 0.02 | ||
| 150 to 200 miles | 1.37 | 0.28 to 6.64 | 0.70 | ||
| National | 3.04 | 1.50 to 6.16 | 0.002 | ||
| Breed type | Sports horse | 1 | 0.02 | ||
| Cob type | 1.36 | 0.73 to 2.54 | 0.33 | ||
| Foreign and other | 1.00 | 0.51 to 1.97 | 1.00 | ||
| Native | 0.49 | 0.27 to 0.88 | 0.02 | ||
| Partbred | 0.75 | 0.4 to 1.39 | 0.36 | ||
| Thoroughbred | 0.57 | 0.32 to 1.01 | 0.05 | ||
| Warmblood | 0.67 | 0.36 to 1.23 | 0.20 | ||
| Age | <5 years | 1 | 0.001 | ||
| 5 to 10 years | 1.56 | 0.76 to 3.19 | 0.22 | ||
| 11 to 17 years | 2.89 | 1.47 to 5.69 | 0.002 | ||
| >17 years | 2.08 | 1.01 to 4.31 | 0.05 | ||
| Horse being rehomed as a companion only | No | 1 | 0.002 | ||
| Yes | 0.33 | 0.15 to 0.74 | 0.01 | ||
| Donation amount | Less than £100 | 1 | 0.01 | ||
| £100 to £249 | 1.03 | 0.67 to 1.6 | 0.88 | ||
| £250 and £499 | 2.01 | 1.31 to 3.08 | 0.001 | ||
| Greater than £500 | 2.24 | 0.68 to 7.41 | 0.19 |