Assessment of physical facilities and detection of post-mortem lesions in public abattoirs in selected districts of Wolaita zone, Ethiopia

Table 5 Level of agreement between 12 abattoirs of categories of grossly visible lesions (top and next rank)

Grossly visible lesion category	Overall districts		Agro-ecological location of municipal abattoir
	Overall districts		Highland (Dega)		Midland (Wonadega)		Lowland (Kola)
	Mean rank score	Test statistics	Mean rank score	Test statistics	Mean rank score	Test statistics	Mean rank score	Test statistics
a	2.67	N = 12	2.75	N = 4	2.67	N = 3	2.60	N = 5
b	2.92	Kendall’s W = 0.275	3.00	Kendall’s W = 0.425	2.67	Kendall’s W = 0.422	3.00	Kendall’s W = 0.152
c	2.92		3.00		3.33		2.60
d	1.50	Chi-Square = 9.900	1.25	Chi-Square = 5.100	1.33	Chi-Square = 3.800	1.80	Chi-Square = 2.280
		Df = 3		Df = 3		Df = 3		Df = 3
		Asymp. Sig = 0.019		Asymp. Sig = 0.165		Asymp. Sig = 0.284		Asymp. Sig = 0.516

(a) cystic; (b) caseous/abscess; (c) fibrotic; (d) hard/fibrous/mineralized (see footnote Table 4 for lesion descriptions)
*Kendall’s W = coefficient of concordance; the evidence of agreement between informant groups was categorized as “weak” for W < 0.26 and p > 0.05; “moderate” for W = 0.26–0.38 and p < 0.05; and strong for W > 0.38 and p < 0.01 according to the published guidelines on the interpretation of W and p-values (Siegel and Castellan, 1988 Nonparametric Statistics for the Behavioral Sciences (2nd ed.) McGraw-Hill)

ISSN: 1746-6148