Table 9

Estimates of parameters and standard errors for different variables that affect the presence of (i) Mycobacterium bovis (ii) M. bovis A1 and (iii) M. scrofulaceum.

(i) M. bovis


d.f. num/den

Parameter estimates ± S.E.

P-value


Host species

2/1

RD = 0.7 ± 14.6, FD = -15.0 ± 17.4

0.99


Area

4/1

CR = 8.2 ± 37.9, EB = 0.4 ± 2.3, MA = -10.4 ± 28.8, PU = 0.99 ± 2.0

0.96


Age

1/85

0.8 ± 0.7

0.24


Distance to marsh

1/78

2.7 ± 2.9

0.03


Distance to other host species similarly infected

1/94

-1.3 ± 0.4

0.19


Host species*area

2/74

Not shown

0.53


Host species*Distance to marsh

7/1

RD*distance = 0.5 ± 4.5, FD*distance = 6.3 ± 5.7

0.96


Distance to other host sim. inf. *host species

2/95

RD*distance = 2.2 ± 1.2, FD*distance = 3.8 ± 1.1

0.002


(ii) M. bovis A1


Host species

2/103

RD = -0.8 ± 1.2, FD = -2.1 ± 1.1

0.18


Area

4/97

EB = -0.9 ± 1.2, MA = -3.0 ± 1.5, PU = -2.8 ± 1.2

0.008


Distance to marsh

1/97

-1.7 ± 1.3

0.20


Distance to other host species similarly infected

1/111

0.1 ± 0.2

0.81


(iii) M. scrofulaceum


Host species

2/87

RD = 2.4 ± 1.8, FD = 6.3 ± 1.7

0.001


Area

4/85

CR = -5.4 ± 1.9, EB = -1.2 ± 1.7, MA = -9.8 ± 13.0, PU = -2.0 ± 2.3

0.08


Distance to marsh

1/72

2.1 ± 1.9

0.26


Distance to other host species similarly infected

1/119

0.8 ± 0.4

0.03


Reference levels for 'Area' and 'Host species' are 'SO (Sotos)' and 'wild boar' respectively.

FD = fallow deer, RD = red deer. CR = Coto del Rey, EB = Estación Biológica, MA = Marismillas, PU = El puntal.

Gortazar et al. BMC Microbiology 2011 11:27   doi:10.1186/1471-2180-11-27

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