Table 3 T.parva incidence during 18 months of follow-up

A) Overall incidences

No RAP

666

2118

45

2.1

Ref

RAP

2418

6857

121

1.8

0.80

0.30-2.14

0.65

B) Prevalences at month 6, 12 and 18

Animals; n (%)

Positive; n (%)

Crude OR

95% CI

i) Prevalence at month 6

No RAP

359

10 (3%)

Ref

RAP

1044

21 (2%)

0.70

0.27-1.8

ii) Prevalence at month 12

No RAP

404

14 (3%)

Ref

RAP

1064

29 (3%)

0.67

0.24-1.91

iii) Prevalence at month 18

No RAP

198

2 (1%)

Ref

RAP

698

15 (2%)

2.17

0.37-12.73