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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

From: A comparison between lesions found during meat inspection of finishing pigs raised under organic/free-range conditions and conventional, indoor conditions

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