Table 3.
Age, sex, and breed predispositions for cats with primary IMHA compared to control cats
| Variable | Number of Cats with Primary IMHA (%) | Number of Control Cats (%) | Odds Ratio | 95% Confidence Interval | P Value |
|---|---|---|---|---|---|
| Agea | |||||
| 0–2.05 | 20 (27.8) | 127 (25.2) | 1.14 | 0.65–1.98 | .652 |
| 2.06–5.90 | 26 (36.1) | 110 (21.8) | 2.01 | 1.19–3.41 | .008 |
| 5.91–11.01 | 14 (19.4) | 135 (26.8) | 0.66 | 0.35–1.22 | .178 |
| 11.02–23.50 | 12 (16.7) | 130 (25.8) | 0.57 | 0.29–1.10 | .090 |
| N | 72 | 504 | |||
| Sexa | |||||
| Intact male | 2 (2.8) | 525 (5.7) | 0.47 | 0.12–1.93 | .440 |
| Neutered male | 30 (41.7) | 4,744 (51.8) | 0.67 | 0.42–1.07 | .093 |
| Intact female | 4 (5.6) | 532 (5.8) | 0.96 | 0.35–2.64 | 1.000 |
| Neutered female | 36 (50.0) | 3,351 (37.1) | 1.74 | 1.10–2.77 | .017 |
| N | 72 | 9,192 | |||
| Breedb | |||||
| DSH | 48 (80.0) | 6,147 (85.4) | 0.99 | 0.61–1.62 | .972 |
| DLH | 8 (13.3) | 849 (11.8) | 1.23 | 0.59–2.57 | .584 |
| Siamese | 4 (6.7) | 204 (2.8) | 2.59 | 0.94–7.17 | .078 |
| N | 60 | 7,200 | |||
| Blood typeb | |||||
| A | 43 (75.4) | 277 (75.1) | 0.98 | 0.51–1.87 | .952 |
| B | 9 (15.8) | 70 (19.0) | 1.25 | 0.59–2.67 | .565 |
| AB | 5 (8.8) | 22 (6.0) | 0.66 | 0.24–1.82 | .418 |
| N | 57 | 369 | |||
DSH, domestic short hair; DLH, domestic long hair.
a
P value ≤.0125 indicates significance at .05 level after Bonferroni correction.
b
P value ≤.0167 indicates significance at .05 level after Bonferroni correction.