Table 3.
Demographic Risk Factor Categories Evaluated for Their Association with Bartonella Seropositivity in Necropsied Northern and Southern Sea Otters
| Northern sea otters (n=48)a | Southern sea otters (n=148)b | |||
|---|---|---|---|---|
| Risk factor | Categories | % Seropositive | % Seropositive | p values |
| Sex | Male | 45.7 (16/35) | 12.3 (10/81) | a=0.33 / b=0.16 |
| Female | 61.5 (8/13) | 20.8 (14/67) | ||
| Age | Immature | 25 (4/16) | 13 (6/46) | a=0.01 / b=0.48 |
| Adult | 62.5 (20/32) | 17.6 (18/102) | ||
| Nutritional condition | Poor | 62 (18/29) | 17.8 (17/95) | a=0.02 / b=0.46 |
| Good | 27.7 (5/18) | 13.2 (7/53) | ||
| Cause of death | Noninfectious | 13.3 (2/15) | 10.5 (8/76) | a≤0.001 / b=0.08 |
| Infectious | 66.6 (22/33) | 22.2 (16/72) |