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. 2017 Oct 19;7(4):267–273. doi: 10.1556/1886.2017.00024

Table 2.

Individuals investigated in this study regarding their tenure in a duck processing plant, smoking, respiratory symptoms, and pneumonia

Group of subjects 2010 2007 2004
No. Tenure (month) Respiratory symptoms (s./no s.) Pneumonia in history No. Tenure (month) Respiratory symptoms (s/no s) Pneumonia in history No. Tenure (month) Respiratory symptoms (s/no s) Pneumonia in history
Management 13 0 1/0 2 6 0 1/0 2 11 0 1/0 2
Management (local) 11 69
(10–135)
0/0 0 3 64
(63–90)
0/0 0 6 29
(28–65)
3/0 1
General services 12 54
(4–209)
3/0 4 7 57
(19–63)
2/0 0 7 2
(2–27)
0/0 0
Cereal service staff 0 - 0/0 0 1 72(72) 1/1 1 0 - 0/0 0
Aviary workers 45 62
(6–136)
15/1 4 19 33
(4–67)
5/0 2 30 18
(2–39)
5/2 4
Hatchery workers 7 63
(40–308)
1/1 0 12 44
(7–59)
3/1 1 9 20
(2–25)
1/0 3
Bird receipt 10 73
(14–207)
6/0 1 2 54
(48–60)
1/0 0 6 25
(4–52)
3/0 2
Slaughterer 8 97
(3–99)
4*/0 2* 3 72
(61–99)
1/0 1* 3 4
(2–30)
1/1 1*

No.: number of workers; tenure (month): tenure in a duck processing plant in months, median (min–max); respiratory symptoms (s./no s.): number of workers reporting respiratory symptoms as noted in questionnaire (smokers/nonsmokers); pneumonia in history: pneumonia in the past 3 years as noted in questionnaire

*One worker reported ornithosis, acquired before joining the company