From: Seroprevalence of Leptospira Hardjo in the Irish suckler cattle population
Category | ELISA Negative | ELISA Positive | Total Tested | Apparent Prevalence (%) | True Prevalence (%) | 95% Confidence Interval | |
---|---|---|---|---|---|---|---|
Region | 1 | 558 | 453 | 1011 | 44.81 | 36.32 | 34.67 - 37.96 |
2 | 518 | 500 | 1018 | 49.12 | 41.29 | 39.64 - 42.93 | |
3 | 436 | 482 | 918 | 52.51 | 45.20 | 43.47 - 46.93 | |
4 | 468 | 399 | 867 | 46.02 | 37.72 | 35.94 - 39.49 | |
5 | 399 | 489 | 888 | 55.07 | 48.16 | 46.40 - 49.91 | |
6 | 330 | 334 | 664 | 50.30 | 42.66 | 40.62 - 44.69 | |
Age | Unknown | 29 | 37 | 66 | 56.06 | 49.30 | 42.88 - 55.71 |
1–2 yrs | 763 | 726 | 1489 | 48.76 | 40.88 | 39.51 - 42.23 | |
2–3 yrs | 207 | 180 | 387 | 46.51 | 38.28 | 35.62 - 40.94 | |
3–5 yrs | 776 | 777 | 1553 | 50.03 | 42.35 | 41.01 - 43.67 | |
5–9 yrs | 527 | 527 | 1054 | 50.00 | 42.31 | 40.69 - 43.92 | |
>9 yrs | 407 | 410 | 817 | 50.18 | 42.52 | 40.68 - 44.35 | |
Sex | Unknown | 29 | 37 | 66 | 56.06 | 49.30 | 42.88 - 55.71 |
Female | 2570 | 2514 | 5084 | 49.45 | 41.67 | 40.93 - 42.41 | |
Male | 110 | 106 | 216 | 49.07 | 41.23 | 37.66 - 44.80 | |
Breeding Herd Size | ≤13 | 453 | 325 | 778 | 41.77 | 32.81 | 30.95 - 34.67 |
14–23 | 824 | 709 | 1533 | 46.25 | 37.98 | 36.64 - 39.32 | |
24–32 | 624 | 572 | 1196 | 47.83 | 39.80 | 38.29 - 41.32 | |
33–142 | 808 | 1051 | 1859 | 56.54 | 49.85 | 48.64 - 51.06 | |
ALL | 2709 | 2657 | 5366 | 49.52 | 41.75 | 41.03 - 42.47 |