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Table 1 Prevalence of Dirofilaria immitis antigen and antibodies to Toxoplasma gondii in cats from Madeira Island, Portugal, according to the categories of several independent variables

From: Survey of Dirofilaria immitis antigen and antibodies to Leishmania infantum and Toxoplasma gondii in cats from Madeira Island, Portugal

Variable/categoryNo. (%) of cats testedPercentage (n) of D. immitis-positivePercentage (n) of T. gondii-positive
Municipality141 (100)P = 0.654aP = 0.459b
 Funchal90 (63.8)4.4 (4)27.8 (25)
 Otherj51 (36.2)2.0 (1)35.3 (18)
Age group139 (98.6)P = 0.322aP = 0.007c
 Juvenile [5–11 months]39 (27.7)0 (0)12.8 (5)
 Adult [1–21 years]100 (70.9)5.0 (5)38.0 (38)
Sex141 (100)P = 1.0aP = 0.067d
Female64 (45.4)3.1 (2)39.1 (25)
 Male77 (54.6)3.9 (3)23.4 (18)
Breed141 (100)P = 1.0aP = 0.247a
 Mixed133 (94.3)3.8 (5)29.3 (39)
 Definedk8 (5.7)0 (0)50.0 (4)
Fur length138 (97.9)P = 1.0aP = 0.218e
 Short101 (71.6)3.0 (3)27.7 (28)
 Medium37 (26.2)2.7 (1)40.5 (15)
Housing138 (97.9)P = 1.0aP = 0.081f
 Indoors34 (24.1)2.9 (1)17.6 (6)
 Outdoors or mixed104 (73.8)3.8 (4)35.6 (37)
Clinical statusl141 (100)P = 0.134aP = 0.705g
 Non-suspect122 (86.5)2.5 (3)29.5 (36)
 Suspect19 (13.5)10.5 (2)36.8 (7)
Ectoparasiticidesm103 (73.0)P = 0.009aP = 0.147h
 Yes62 (44.0)0 (0)25.8 (16)
 No41 (29.1)12.2 (5)41.5 (17)
Macrocyclic lactonesn107 (75.9)P = 0.076aP = 0.066i
 Yes44 (31.2)0 (0)18.2 (8)
 No63 (44.7)7.9 (5)36.5 (23)
Total141 (100)3.5 (5)30.5 (43)
  1. aFisher’s exact test
  2. bχ2 = 0.549, df = 1
  3. cχ2 = 7.189, df = 1
  4. dχ2 = 3.351, df = 1
  5. eχ2 = 1.520, df = 1
  6. fχ2 = 3.050, df = 1
  7. gχ2 = 0.143, df = 1
  8. hχ2 = 2.106, df = 1
  9. iχ2 = 3.384, df = 1
  10. jCalheta (n = 3; 2.1%), Câmara de Lobos (n = 19; 13.5%), Ponta do Sol (n = 4; 2.8%), Porto Moniz (n = 1; 0.7%), Ribeira Brava (n = 4; 2.8%) and Santa Cruz (n = 20; 14.2%)
  11. kPersian (n = 1; 0.7%) and Siamese (n = 7; 5.0%)
  12. lClinical manifestations compatible with cardiopulmonary dirofilariosis and/or toxoplasmosis, comprising: anaemia, anorexia, diarrhoea, dyspnoea, fever, jaundice, pale mucous membranes and vomit
  13. mDinotefuran and pyriproxifen, fipronil and (S)-methoprene, fluralaner, lotilaner or spinosad
  14. nEprinomectin or milbemycin oxime