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Table 3 Univariate analysis of risk factors for the isolation of Mycobacterium spp

From: Occurrence of mycobacteria in bovine milk samples from both individual and collective bulk tanks at farms and informal markets in the southeast region of Sao Paulo, Brazil

 

Isolation of Mycobacteriumspp

Risk factors

n

%

Total

P-value*

Milk sample origin

   

0,87

  Individual bulk tank

9

9

100

 

  Collective bulk tank

7

7

100

 

  Informal trade

8

8

100

 

Veterinary assistance

   

0,36

  Individual bulk tank

55

55

100

 

  Collective bulk tank

35

35

100

 

  Informal trade

3

11

28

 

Concerns on bovine tuberculosis prevention

   

0,24

  Individual bulk tank

42

42

100

 

  Collective bulk tank

32

32

100

 

  Informal trade

4

14

28

 

Total volume milked/day

   

0,18

  High

113

49

228

 

  Low

115

50

228

 

Mean volume milked/day

   

0,43

  High

114

50

228

 

  Low

114

50

228

 

Lactating animals

   

0,87

  Many

116

51

228

 

  Few

112

49

228

 

Farmers/collective bulk tank

   

0,86

  Many

54

54

100

 

  Few

46

46

100

 
  1. *Pearson’s Chi-squared test, association with Mycobacterium spp. isolation.