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. 2012 Jan;18(1):138–141. doi: 10.3201/eid1801.111189

Table 1. Characteristics and practices of farms with rabid deer, Pennsylvania, USA, 2007–2010.

Characteristic/practice Case farms, n = 4 Control farms, n = 10 Total, n = 14 Odds ratio (95% CI)
Mean age of farmer, y 41.3 46.6 45.1 0.96 (0.88–1.10)
Farmer education, some high school or above, no. (%); reference = some high school or below 1 (25) 5 (50) 6 (43) 0.33 (0.03–4.40)
Mean time farming, y (range)
10.8 (5–17)
9.3 (2–17)
9.7 (2–17)
1.1 (0.83–1.37)
Mean size of farm, acres (range) 15.3 (2–45) 27.4 (3–170) 23.9 (2–170) 0.99 (0.95–1.03)
No. deer on farm, mean (range) 69.8 (13–159) 75.8 (16–230) 74.1 (13–230) 0.99 (0.98–1.02)
No. deer/acre in smallest pen, mean (range) 34.7 (10.7–90.9) 36.8 (8–89.3) 36.2 (8–90.0) 0.99 (0.96–1.04)
No. deer brought onto farm annually, mean
1.25
3.0
2.5
0.67 (0.23–1.92)
Farms reporting deer vaccination, no. (%) 4 (100) 7 (70) 11 (79) 0.78 (0.06–10.86)
Farms reporting deer vaccinated against rabies, no. (%)
4 (100)
0
4 (28)
Not calculated
Farms reporting feeding method, no (%)
Trough 4 (100) 9 (90) 13 (93) Not calculated
Bottle 2 (50) 9 (90) 11 (79) 0.11 (0.01–1.91)
Tube feeder
1 (25)
3 (30)
4 (29)
0.78 (0.06–10.86)
Farms reporting use of sweet feed, no. (%)
3 (75)
7 (70)
10 (71)
1.29 (0.09–17.95)
Farms reporting deer contact with rabies reservoir species, no. (%)
Skunks 2 (50) 4 (40) 6 (43) 1.5 (0.15–15.46)
Raccoons 2 (50) 3 (30) 5 (36) 2.3 (0.22–25.25)
Foxes 0 1 (10) 1 (7) Not calculated