Table 4.
Contrast | OR (95% CI) a | P (Wald test) |
---|---|---|
Spayed female vs. Intact male (Referent category) | 0.43 | <0.001 |
Neutered male vs. Intact male (Referent category) | 0.85 | 0.374 |
Neutered male vs. Spayed female (Referent category) | 1.98 | <0.005 |
a Odds ratio for the contrast after adjusting for age, outdoor exposure and health status.