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Table 2 Results of camel seroprevalences by the Rose Bengal Test (RBT) stratified by sex, age class, province and sampling year

From: Risk factors of brucellosis seropositivity in Bactrian camels of Mongolia

Variable Category n n pos Seroprevalenceb 95% CIb
Province Dornod 241 13 5.3 2.9–9.6
Sukhbaatar 298 18 6.1 3.5–10.6
  Dornogobi 388 3 0.8 0.3–2.3
  Umnogobi 526 2 0.4 0.1–1.4
  Khovd 369 1 0.3 0.04–1.9
Sex Female 1429 26 2.2 1.4–3.4
Males 332 10 3.0 1.6–5.5
Age class ≤ 4 years 253 5 2.0 0.8–4.7
>  4 years 1569 32 2.3 1.6–3.4
Year Eastern provinces 2013 237 13 5.7 3.1–10.2
Eastern provinces 2014 302 18 5.8 3.3–10.1
  Southern & Western provinces 2014 897 4 0.4 0.2–1.2
Southern & Western provinces 2015 386 2 0.5 0.1–2.0
  1. aPositive with RBT, b95% confidence interval (CI) calculated with the panel variable on the level of herd to consider potential clustering within herds; Eastern provinces: Sukhbaatar and Dornod Southern & Western provinces: Dornogobi, Umnogobi and Khovd