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Table 2 Prevalence of A. phagocytophilum in I. ricinus per site in 2011–2013

From: Anaplasma phagocytophilum prevalence in ticks and rodents in an urban and natural habitat in South-Western Slovakia

Site   2011 2012 2013    Total
  % (pos/ex) 95 % CI % (pos/ex) 95 % CI % (pos/ex) 95 % CI χ 2 P % (pos/ex)
Bratislava Nymphs 7.0 (48/686) 5.2–9.1 5.6 (11/195) 2.6–9.2 2.0 (9/455) 0.9–3.3 14.409 0.001 5.1 (68/1336)
  Females 15.6 (22/141) 9.7–22.1 18.0 (11/61) 8.2–27.9 6.4 (10/156) 2.6–10.3 8.444 0.015 12.0 (43/358)
  Males 10.7 (19/178) 6.4–15.5 11.8 (8/68) 4.4–19.1 8.5 (15/177) 4.5–12.4 0.785 0.675 9.9 (42/423)
  Total 8.9 (89/1005) 7.2–10.6 9.3 (30/324) 6.2–12.7 4.3 (34/788) 2.9–5.7 15.940 <0.001 7.2 (153/2117)
Fúgelka Nymphs 0.8 (9/1067) 0.4–1.4 3.7 (11/295) 1.7–5.8 3.4 (9/263) 1.5–5.7 15.777 <0.001 1.8 (29/1625)
  Females 6.0 (9/150) 2.7–10.0 6.8 (4/59) 1.7–13.6 4.0 (3/75) 0.0–9.3   0.790a 5.6 (16/284)
  Males 9.1 (15/164) 4.9–14.0 2.4 (2/82) 0.0–6.1 8.8 (9/102) 3.9–14.7 3.939 0.140 7.5 (26/348)
  Total 2.4 (33/1381) 1.7–3.2 3.9 (17/436) 2.1–5.7 4.8 (21/440) 2.7–6.8 7.227 0.027 3.1 (71/2257)
  1. (pos/ex), number of positive/number of examined; 95 % CI, confidence interval; χ 2, goodness-of-fit test; P, significance level
  2. aFisher’s exact test was used to compare prevalence in females among years because the condition of χ 2 goodness-of-fit test was not fulfilled