Coxiella burnetii Seroprevalence and Risk Factors in Cattle Farmers and Farm Residents in Three Northeastern Provinces and Inner Mongolia Autonomous Region, China
Table 2
Bivariate logistic regression analysis of participant-based characteristics associated with Coxiella burnetii positivity among cattle farmers and farm residents in three northeastern provinces and Inner Mongolia Autonomous Region, China.
Variable
Category
Freq. ()
Seroprevalence (%)
OR (95% CI)
value
Work and/or live on farm
Work and live
245
40.41
2.03 (0.98–4.22)
0.023
Work, but not live
73
26.03
1.06 (0.45–2.49)
Not working, but live
44
25.00
Reference
Hours working on farm
Fulltime
174
37.36
1.32 (0.65–2.66)
0.853
Halftime
109
35.78
1.23 (0.59–2.59)
Quarter week
34
32.35
1.06 (0.41–2.76)
Sometimes/never
45
31.11
Reference
How often in stable
Every day
189
38.62
1.39 (0.70–2.79)
0.426
Every week
104
35.58
1.22 (0.58–2.58)
Every month
38
28.95
0.90 (0.35–2.32)
Less than once a month/never
31
25.81
Reference
Feeding cattle
Yes
299
38.45
2.19 (1.16–4.14)
0.014
No
63
22.22
Reference
Milking cattle
Yes
203
43.84
2.32 (1.48–3.65)
<0.001
No
159
25.16
Reference
General healthcare of cattle
Yes
241
42.32
2.56 (1.55–4.21)
<0.001
No
121
22.31
Reference
Remove manure
Yes
286
35.66
1.01 (0.59–1.71)
0.982
No
76
35.53
Reference
Spread manure
Yes
258
40.31
2.13 (1.28–3.57)
0.002
No
104
24.04
Reference
Clean stables
Yes
269
39.03
1.84 (1.09–3.11)
0.022
No
93
25.81
Reference
Birth assistance
Yes
216
42.59
2.19 (1.38–3.46)
<0.001
No
146
25.34
Reference
Administration
Yes
219
38.81
1.43 (0.91–2.23)
0.076
No
143
30.77
Reference
Wear overalls or boots
Yes
233
38.63
1.45 (0.92–2.30)
0.110
No
129
30.23
Reference
Having a dog
Yes
294
35.03
0.87 (0.51–1.50)
0.619
No
68
38.24
Reference
Having a cat
Yes
278
35.25
0.93 (0.56–1.55)
0.782
No
84
36.90
Reference
Direct contact with cattle in their own or other farms
Yes
287
38.68
2.00 (1.12–3.57)
0.018
No
75
24.00
Reference
Direct contact with horses in their own or other farms