Dairy workers (n = 185)

Control workers (n = 45)

Mean (SD)

Median

n

%

Mean (SD)

Median

n

%

Work history

Years in agriculture

19.2 (12.6)

17.0

8.3 (6.5)

6.0

Years working on any dairy

8.7 (8.8)

5.0

0

0.0

History of PPE usea

More than half the time

16

8.7

14

31.1

Up to half the time

26

14.0

13

28.9

Never or rarely

142

76.8

18

40.0

No response

1

0.5

0

0.0

Observed shift

Length of work-shift (hrs)

9.1 (0.9)

9.0

8.6 (0.2)

8.0

Time spent working in dusty environment (mins)

145 (200)

1.0

2.4 (3.8)

0.0

# of days worked since last day

3.1 (2.1)

3.0

3.9 (1.6)

4.0

Mins spent in an enclosed cabb

245 (62)

0

0

0

PPE usea

Yes

1

0.5

2

4.5

No

26

14.1

43

95.5

No response

158

85.4

0

0.0