TABLE 1.
Monthly Salmonella prevalences for each region over the course of the study
| Region | Total no. of samples | No. of mosa | Avg no. of samples per mo (range)b | Mean % (95% CI)c |
|---|---|---|---|---|
| 1 | 529 | 17 | 31 (8-91) | 2.42* (−0.080 to 4.913) |
| 2 | 267 | 15 | 18 (5-55) | 1.82* (−0.723 to 4.394) |
| 3 | 691 | 23 | 30 (18-67) | 6.46* (4.383 to 8.547) |
| 5 | 461 | 12 | 38 (20-75) | 2.91* (−0.023 to 5.789) |
| 6 | 560 | 12 | 47 (22-96) | 4.14* (1.254 to 7.020) |
| 7 | 174d | 12 | 13 (1-21) | 3.28* (0.510 to 6.049) |
| 8 | 1450 | 23 | 63 (11-129) | 3.00* (0.918 to 5.083) |
a
The number of months out of the 24-month study in which more than two samples from a given region were received.
b
Average number of samples received each month.
c
Mean Salmonella prevalence. Values bearing common numbers of asterisks do not significantly differ (P > 0.05).
d
One hundred seventy-five samples were received from region 7 over 13 months, but in one month, only one sample was collected, and sample data for that month were dropped for proper analysis of prevalence.