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Table 1 Epidemiological characteristics of pig farm workers included in the study

From: Prevalence of colonization by methicillin-resistant Staphylococcus aureus ST398 in pigs and pig farm workers in an area of Catalonia, Spain

   MRSA ST398 Statistical test and p value*
  All Positive Negative  
Pig farm workers [n, (%)] 140 81 (57.9) 59 (42.1) na
Age in years [mean, (SD)] 44.9 (13.8) 44.4 (13.2) 45.5 (14.7) p = 0.631**
Men [n, (%)] 132 (94.3) 75(92.6) 57 (96.6) p = 0.467***
Years of work [mean, (SD)] 17.5(12.6) 17.8 (12.7) 17.1(12.5) p = 0.763**
Medical History[n, (%)] 9 (6) 5 (6.2) 4 (6.8) p = 1.000***
Antibiotics treatment last year % 0 0 0 na
Hospital admission last year % 0 0 0 na
N pigs 1200 (700–3000) 1500 (1050–4300) 1000 (300–1300) p < 0.001****
Fattening farm workers 69 (49.3) 38 (46.9) 31(52.5) p = 0.511*****
farrow-to-finish farm workers 71(51.7) 43(53.1) 28(47.5)  
  1. na not applicable
  2. *Level of significance is set at p < 0.05
  3. **Student t
  4. ***Fisher’s exact test
  5. ****Mann-Whitney U
  6. *****Pearson’s chi-square