Table 3.
Colony size and composition prior to TNR being commenced and at the time the respondent completed the questionnaire (“current”) for 21 colonies managed using TNR where unambiguous numbers were reported (median (range)).
| Colony Size & Composition | All Colonies (n = 21) | Colonies Under Individual-Operated Programs (n = 8) | Colonies Under Organization-Operated Programs (n = 13) | p 1 |
|---|---|---|---|---|
| Number of cats in colony at commencement of TNR | 11 (3 to 40) | 12.5 (4 to 40) | 10 (3 to 20) | 0.478 |
| Number of cats & kittens removed for adoption, since TNR began in colony: | ||||
| Number | 3 (0 to >50) | 7 (3 to >50) | 1 (0 to 19) | 0.013 |
| Number as ratio of number of cats in colony at commencement of TNR | 0.3 (0.0 to 1.9) | 0.8 (0.2 to >1.2) | 0.1 (0.0 to 1.9) | <0.001 |
| Current situation | ||||
| Total number of cats | 5 (1 to 23) | 6.5 (1 to 23) | 5 (3 to 15) | 0.896 |
| Percent desexed | 69% (21 to 100) | 100% (21 to 100) | 67% (25 to 100) | 0.192 |
| Percent adult (older than six months) | 100% (47 to 100) | 100% (65 to 100) | 100% (47 to 100) | 0.928 |
| Percent male 2 | 50% (0 to 100) | 38% (0 to 67) | 60% (0 to 100) | 0.028 |
| Time TNR had been used in the colony (years) | 1.7 (0.1 to 12) | 3.2 (0.4 to 12) | 1.0 (0.1 to 11) | |
| Percent reduction in number of cats in colony | 40% (−77% to 83%)3 | 55% (−77% to 83%) | 24% (−67% to 70%) |
1 P for comparison of distributions between colonies under individual-operated and organization-operated programs; 2 Expressed as a percentage of those whose sex was known; 3 “−77%” equates to a 77% increase in the number of cats in the colony.