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Table 3 Significant differences in parasite prevalence within each age class, between age classes, and overall

From: Dog-walking behaviours affect gastrointestinal parasitism in park-attending dogs

  Juvenilesa Adults Juveniles > adults Overall
Giardia vs. Helminths     
Prevalence (%) 55 > 3.6b 19 > 4.1 - 24.7 > 4.1
X 2 301.2 81.7 - 209.5
df 1 1 - 1
P <0.001 <0.001 - <0.001
Giardia vs. Cryptosporidium spp.   -   
Prevalence (%) 55 > 15 - - 24.7 > 14.7
X 2 50.2 - - 19.8
df 1 - - 1
P <0.001 - - <0.001
Giardia vs. Cystoisospora spp.   -   
Prevalence (%) 55 > 18.2 - - 24.7 > 16.8
X 2 36.5 - - 11.5
df 1 - - 1
P <0.001 - - =0.001
Cryptosporidium spp. vs. Helminths     
Prevalence (%) 15 > 3.6 14.7 > 4.1 - 14.7 > 4.1
X 2 14.7 21 - 51.6
df 1 1 - 1
P =0.003 <0.001 - <0.001
Cystoisospora spp. vs. Helminths     
Prevalence (%) 18.2 > 3.6 16.6 > 4.1 - 16.8 > 4.1
X 2 33.2 76.6 - 104
df 1 1 - 1
P <0.001 =0.004 - <0.001
Overall parasitism     
Prevalence (%) - - 70 > 46.4 -
X 2 - - 8.9 -
df - - 1 -
P - - <0.001 -
  1. aAge strata. Significant differences in parasite prevalence within juvenile and adult age classes, between age classes (where parasite prevalence is higher in juveniles than adults), and overall.
  2. bExample of coding for significant parasite prevalence differences. In this case, prevalence of Giardia spp. (55%) is greater than helminths (3.6%) in the juvenile age class.