Table 3.
N | % seropositive | P-value on type III test | β | P-value | |
---|---|---|---|---|---|
Age | |||||
Juvenile | 665 | 0·3 | 0·001 | Refa | |
Adult | 777 | 3·2 | 2·40 | 0·001 | |
Time spent outside daily | |||||
<12 h/day | 1366 | 1·2 | <0·0001 | Ref | |
12–18 h/day | 25 | 8·0 | 2·06 | 0·008 | |
18–24 h/day | 49 | 18·4 | 3·01 | <0·0001 | |
Date of sampling | |||||
Before July 15 | 945 | 1·6 | 0·327 | Ref | |
After July 15 | 519 | 2·3 | 0·38 | 0·327 | |
Breed | |||||
Small breed | 379 | 0·26 | 0·029 | Ref | |
Large breed | 1080 | 2·41 | 2·23 | 0·029 | |
Sex | |||||
Male | 754 | 1·9 | 1·00 | Ref | |
Female | 700 | 1·9 | 0·00 | 1·000 | |
Hair length | |||||
Short | 979 | 1·43 | 0·234 | Ref | |
Long | 478 | 2·30 | −0·48 | 0·234 | |
Use of insecticides | |||||
Never | 1166 | 1·85 | 0·464 | Ref | |
Occasionally | 85 | 3·4 | 0·57 | 0·216 | |
All summer long | 169 | 1·2 | −0·52 | 0·316 | |
Use of flea medication | |||||
Never | 564 | 1·6 | 0·734 | Ref | |
Occasionally | 159 | 2·5 | 0·23 | 0·591 | |
All summer long | 696 | 2·0 | 0·46 | 0·454 | |
Use of mosquito repellents | |||||
Never | 1255 | 1·8 | 0·784 | Ref | |
Occasionally | 165 | 1·8 | −0·008 | 0·990 | |
Every day | 27 | 3·7 | 0·72 | 0·487 |
Reference category.