Table 2.

Prevalence of total number of lesions – as well as all lesions minus chronic pleuritis - recorded during meat inspection in organic/free-range finishing pigs (N = 201,160) compared with conventionally raised finishing pigs (N = 1,173,213), for one Danish slaughterhouse, covering 1 year from October 1, 2012, to September 26, 2013

	Total No. of lesions				Total No. of lesions minus chronic pleuritis
Production system	No. of lesions	Prevalence (%)	No. of slaughtered pigs	Odds Ratio	No. of lesions	Prevalence (%)	No. of slaughtered pigs	Odds Ratio*
Organic/free-range	79,174	39.4	201,160	1.01	40,830	20.3	201,160	1.34
Conventional	459,239	39.1	1,173,213	1.00	178,428	15.2	1,173,213	1.00

*P-value to test the statistical difference between the observed prevalences was <0.0001.