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