Table 3 Proportional hazard model for mortality in 3519 white veal calves, housed in 10 commercial veal herds in Belgium with the studied diseases added as fixed factors

Calf gender

Male (ref)

3202

0

-

Female

317

−0.8

0.4

0.4

0.2-0.9

0.04

Breed

0.04

Black HF (ref.)

1296

0

-

Red HF

124

0.7

0.3

2.1

1.1-5.5

0.03

Crossbreds

884

−0.2

0.3

0.8

0.5-1.4

0.44

BB

1215

−0.3

0.3

0.7

0.4-1.4

0.33

Number of BRD episodes

<0.001

None (ref.)

2997

0

-

1

451

1.0

0.2

2.6

1.9-3.6

<0.001

2

59

1.4

0.3

4.1

2.2-7.8

<0.001

≥ 3

12

1.9

0.5

6.5

2.5-16.5

<0.001

Diarrhea

No (ref.)

3333

0

-

Yes

186

1.0

0.2

2.8

1.9-4.2

<0.001

Arthritis

No (ref.)

3467

0

-

Yes

52

1.1

0.3

2.9

1.6-5.3

<0.001

Herd effect ^a

0.3

0.2

<0.001