Variables No. examined fish (%) No. fish affected (%) χ2 (p-value) OR (95% CI)
Fish species      
Oreochromis niloticus 221 (57.55) 37 (16.74) 1
Clarias gariepinus 163 (42.45) 43 (26.38) 5.2838 (0.022*)
Sex      
Male 189 (49.22) 43 (22.75) 1.78 (1.0851-2.9264)
Female 195 (50.78) 37 (18.97) 0.8301 (0.362)
Total 384 (100%) 80 (20.83%)  
*Statistically significant
Table 1: Association of species and sex of fish to prevalence of internal parasites in Lake Ziway
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