Table 4B.

Results from logistic regressions on the association between (a) tail lesion score and (b) tail length class (separate models) and arthritis, pericarditis, pleuritis, pneumonia, and skin infection recorded at meat inspection (n = 14 382).

	Athritis	Pericarditis	Pleuritis	Pneumonia	Skin infection
	%*1, OR*2 (CI)*3	%, OR (CI)	%, OR (CI)	%, OR (CI)	%, OR (CI)
(a) Tail lesion scorea	1.3***	5.0***	39**	2.3***	0.4***
Intact tail + bite marks or bruises	1.4, 1.05 (0.65-1.68)ns	5.4, 1.09 (0.85-1.39)ns	39, 0.99 (0.88-1.11)ns	2.9, 1.24 (0.88-1.73)ns	1.4, 3.67 (2.03-6.65)***
Healed lesion	2.4, 1.80 (1.32-2.45)***	7.2, 1.48 (1.25-1.76)***	42, 1.10 (1.02-1.20)*	2.8, 1.23 (0.95-1.58)ns	0.3, 0.85 (0.42-1.69)ns
Healed lesion + bite marks or bruises	2.1, 1.55 (0.99-2.42)†	6.6, 1.36 (1.06-1.75)*	44, 1.19 (1.05-1.35)**	2.2, 0.95 (0.63-1.43)ns	0.7, 1.77 (0.82-3.91)ns
Minor acute wound	2.0, 1.53 (1.02-2.31)*	6.3, 1.29 (1.02-1.63)*	42, 1.11 (0.99-1.24)†	3.1, 1.35 (0.97-1.87)†	0.8, 2.03 (1.02-4.07)*
Major acute wound	8.4, 6.75 (4.35-10.5)***	7.3, 1.50 (0.99-2.28)†	36, 0.89 (0.71-1.11)ns	12, 5.58 (3.86-8.01)***	2.0, 5.16 (2.18-12.2)***
(b) Tail length classb	1.6***	5.6***	40**	2.6**	0.6***
17-24 cm	3.2, 2.00 (1.51.2.64)***	7.5, 1.37 (1.14-1.63)**	43, 1.09 (0.98-1.20)†	3.8, 1.45 (1.13-1.87)**	0.5, 0.80 (0.41-1.56)ns
9-16 cm	4.0, 2.48 (1.45-4.24)**	10, 1.88 (1.33-2.66)***	36, 0.83 (0.67-1.02)ns	3.7, 1.43 (0.83-2.46)ns	0.8, 1.37 (0.43-4.38)**
<9 cm	6.4, 4.11 (1.77-9.50)**	5.3, 0.95 (0.38-2.34)ns	28, 0.57 (0.36-0.89)*	7.4, 2.99 (1.37-6.51)**	5.3, 9.66 (3.80-24.5)***

^*1% of findings within tail lesion score or length category,

^*2Odds ratio,

^*395% confidence interval for OR,

^aIntact tails act as the reference category, significance level given is for the entire model in this row,

^bTails length class 4 (> 24 cm) acts as the reference category.

^nsp > 0.1;

^†p < 0.1;

^*p < 0.05;

^**p < 0.01;

^***p < 0.001.