Volume 9, Number 1—January 2003
Research
Seasonal Dynamics of Anaplasma phagocytophila in a Rodent-Tick (Ixodes trianguliceps) System, United Kingdom
Table 3
Determinants of parasitism of rodents by larval, nymphal, and adult Ixodes trianguliceps ticks in the most parsimonious negative binomial regression modelsa
Variable | Coefficient | SEb | p value |
---|---|---|---|
Larvae |
|||
Rodent body mass (g) |
0.029 |
0.013 |
0.03 |
Month (3-point scale) |
0.712 |
0.063 |
<0.001 |
Male bank voles vs. wood mice and female bank voles |
0.580 |
0.279 |
0.04 |
Wood mice vs. female bank voles |
0.462 |
0.229 |
0.04 |
Intercept |
–0.702 |
0.468 |
|
Nymphs |
|||
Rodent body mass (g) |
0.097 |
0.030 |
0.001 |
Month (2-point scale) |
1.761 |
0.250 |
<0.001 |
Male bank voles vs. wood mice and female bank voles |
2.394 |
0.832 |
0.004 |
Intercept |
–6.590 |
0.915 |
|
Adults |
|||
Rodent body mass (g) |
0.170 |
0.055 |
0.002 |
Intercept | –3.769 | 1.326 |
aRodent ID included as a random effect.
bSE, standard error.