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Table 1 Characteristics [percentage of observations for categorical variables and median (range) for continuous variables] of Swedish dairy herds participating in a questionnaire study of biosecurity and disease management in organic and conventional dairy production

From: Biosecurity and animal disease management in organic and conventional Swedish dairy herds: a questionnaire study

Variables

Organic

n = 91

Conventional

n = 101

P valuea

Age (years)

50 (20–69)

53 (23–70)

0.07

Years in profession

25 (4–45)

28 (1.5–77)

0.63

Number of milking cows

80 (40–460)

75 (25–400)

0.13

Gender of the respondent

 Female

43.3

43.6

0.97

Geographical distributionb

 SE1

29.7

22.0

0.24

 SE21

19.8

22.0

 

 SE22

5.5

15.0

 

 SE23

27.5

22.0

 

 SE3

17.6

15.0

 

Milking system

 Parlour/rotary

41.1

30.7

< 0.001

 Automatic milking system

47.8

28.7

 

 Pipeline/tie-stall

11.1

40.6

 

Elementary agricultural school education

 Yes

75.3

62.4

0.06

Post-secondary school education

 Yes

62.5

45.5

0.02

  1. aKruskal–Wallis/Chi2
  2. bNUTS (Nomenclature of Territorial Units for Statistics) regions SE1 East Sweden, SE21 Småland and the islands, SE22 South Sweden, SE23 West Sweden, and SE3 North Sweden http://ec.europa.eu/eurostat/documents/345175/7451602/nuts-map-SE.pdf