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Table 2 Effect of surgical castration on percentage of mortality in the suckling period by initial body weight groupa

From: Surgical castration with pain relief affects the health and productive performance of pigs in the suckling period

Item Intact Males (%) Castrated Males (%) Odds ratio b (95% CI) P value 3
 Light 6.3 12.2 2.2 (1.09, 4.25) 0.017
 Medium 2.7 5.5 2.1 (1.02, 4.22) 0.041
 Heavy 2.4 1.5 0.6 (0.15, 2.51) 0.327
  1. aPigs were split in three groups according to their initial body weight: light pigs (25% pigs with the lightest initial body weight), medium pigs (50% pigs with medium initial body weight) and heavy pigs (25% pigs with the heaviest initial body weight)
  2. bOdds ratio of death
  3. 3 P-value for surgical castration treatment effect (Intact vs. Castrated male pigs) obtained by multiple comparisons and using Tukey’s correction