Table 1 Seroprevalence of Toxoplasma gondii infection in Tibetan sheep in Gansu Province, northwest China by modified agglutination test (MAT)
Factor | Category | No. tested | No. positive | Prevalence (%) | 95% CI | p-value a |
|---|---|---|---|---|---|---|
Regions | Maqu | 770 | 190 | 24.7 | 21.63-27.72 | P < 0.001 |
Tianzhu | 962 | 162 | 16.8 | 14.48-19.21 | ||
Gender | Male | 531 | 121 | 22.8 | 19.22-26.36 | P = 0.052 |
Female | 1201 | 231 | 19.2 | 17.01-21.46 | ||
Season | Spring | 480 | 108 | 22.5 | 18.76-26.24 | P = 0.036 |
Summer | 398 | 94 | 23.6 | 19.45-27.79 | ||
Autumn | 479 | 88 | 18.4 | 14.90-21.84 | ||
Winter | 375 | 62 | 16.5 | 12.77-20.29 | ||
Age (yr) | 0 < yr ≤ 1 | 335 | 70 | 20.9 | 16.54-25.25 | P = 0.729 |
1 < yr ≤ 3 | 585 | 124 | 21.2 | 17.89-24.51 | ||
3 < yr ≤ 5 | 515 | 96 | 18.6 | 15.28-22.00 | ||
5 < yr | 297 | 62 | 20.9 | 16.25-25.50 | ||
Pregnancies | 0 | 432 | 82 | 19.0 | 15.28-22.68 | P = 0.545 |
1 | 186 | 36 | 19.4 | 13.68-25.03 | ||
2 | 252 | 42 | 16.6 | 12.07-21.27 | ||
≥3 | 331 | 71 | 21.5 | 17.03-25.87 | ||
Total | 1732 | 352 | 20.3 | 18.43-22.22 |