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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.