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Table 5 Distribution of secondary control measures characteristics in 389 Norwegian dairy free-stall herds by DD category (DD+/DD−)

From: A case–control study regarding factors associated with digital dermatitis in Norwegian dairy herds

Secondary control measures

n

DD+ (n = 108)

DD− (n = 281)

OR

95% CI of OR

P value

n (%)b

n (%)b

Use of disinfectant litter in cubicles

 No

329

89 (82.4)

240 (85.4)

Baseline

 

0.464

 Yes

60

19 (17.6)

41 (14.6)

1.25

0.69–2.27

 Missing

0

0

0

  

Use of disinfectant footbaths

 No

354

88 (82.2)

266 (94.7)

Baseline

 

0.000

 Yes

34

19 (17.8)

15 (5.3)

3.83

1.87–7.86

 Missing

1

1

0

  

Installed claw washing system in barn

 No

321

78 (72.2)

243 (87.7)

Baseline

 

0.000

 Yes

63

30 (27.8)

33 (11.9)

2.83

1.62–4.94

 Uncertain

1

0 (0)

1 (0.4)

1

 

 Missing

4

0

4

  
  1. OR odds ratio, CI confidence interval
  2. bMissing not included in %