Table 2.
Percentage of koalas (N of koalas) of the four most common diagnoses by sex (stratified by age class; N = 509 koalas with age and sex information) for koalas submitted to South-East Queensland hospitals and receiving necropsies at The University of Queensland from 2013 through to 2016. Koalas may be counted more than once in the diagnoses categories due to co-morbidities.
| Age group | Infectious | Trauma | Neoplasia | Wasting unknown | ||||
|---|---|---|---|---|---|---|---|---|
| Female | Male | Female | Male | Female | Male | Female | Male | |
| Young/Subadult (N = 154) | 67.2% (45/67)* | 35.6% (31/87)* | 46.3% (31/67) | 55.2% (48/87) | 4.5% (3/67) | 5.8% (5/87) | 1.5% (1/67)* | 60.7% (17/87)* |
| Mature (N = 234) | 76.4% (81/106)* | 61.7% (79/128)* | 32.1% (34/106) | 32.8% (42/128) | 9.4% (10/106) | 9.4% (12/128) | 1.9% (2/106)* | 39.3% (11/128)* |
| Old (N = 118) | 80.8% (59/73)* | 60.0% (27/45)* | 17.8% (13/73)* | 37.8% (17/45)* | 8.2% (6/73) | 6.7% (3/45) | ||
*Statistical differences between sex groups at p < 0.05.
Percentage of koalas per sex group within each age class for each diagnosis was calculated as N of koalas per sex and age group for each diagnoses/Total number of koalas per sex and age group.