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Table 1 Descriptive analysis of risk factors analysed classified by antimicrobial resistance

From: Additive Bayesian networks for antimicrobial resistance and potential risk factors in non-typhoidal Salmonella isolates from layer hens in Uganda

   AMPa   CHLb   CIPRc   SULFAd   SXTe   TETf   TRIMg    
Risk factor   Sh Ri S R S R S R S R S R S R   Proportion
(NAk)                 Total per risk factor 95% CIj
  Total 82 4 82 4 46 40 65 21 80 6 73 13 80 6 n  
Proportion of resistance 95% CI1 0.05 [0.01;0.1] 0.05 [0.01;0.1] 0.46 [0.36;0.58] 0.24 [0.16;0.34] 0.07 [0.0;0.2] 0.15 [0;0.3] 0.07 [0.0;0.2]   
Gender Male 58 1 58 1 30 29 41 18 54 5 52 7 54 5 59 0.69 [0.58; 0.78]
(0) Female 24 3 24 3 16 11 24 3 26 1 21 6 26 1 27 0.31 [0.22; 0.42]
Pets Yes 28 1 28 1 13 16 20 9 27 2 23 6 27 2 29 0.34 [0.24; 0.44]
(0) No 54 3 54 3 33 24 45 12 53 4 50 7 53 4 57 0.66 [0.56; 0.76]
Farm sizel Small 29 2 29 2 19 12 27 4 30 1 29 2 30 1 31 0.36 [0.26; 0.47]
(2) Medium 18 0 18 0 10 8 15 3 18 0 17 1 18 0 18 0.21 [0.13; 0.31]
  Large 35 2 35 2 17 20 23 14 32 5 27 10 32 5 37 0.43 [0.32; 0.64]
Management Free/ Semi 25 2 25 2 16 11 22 5 26 1 25 2 26 1 27 0.31 [0.22; 0.42]
(1) Intensive 57 2 57 2 30 29 43 16 54 5 48 11 54 5 59 0.69 [0.58; 0.78]
Reuse Egg trays Yes 31 2 31 2 15 18 25 8 30 3 30 3 30 3 33 0.38 [0.28; 0.49]
(3) No 51 2 51 2 31 22 40 13 50 3 43 10 50 3 53 0.62 [0.51; 0.72]
Vaccinator Private Service 30 0 30 0 20 10 26 4 30 0 22 8 30 0 30 0.35 [0.25; 0.46]
(0) Self or family 35 3 35 3 21 17 31 7 37 1 34 4 37 1 38 0.44 [0.34; 0.55]
  Employee 17 1 17 1 5 13 8 10 13 5 17 1 13 5 18 0.21 [0.13; 0.31]
Disposal Burrying 45 1 45 1 23 23 31 15 42 4 37 9 42 4 46 0.53 [0.42; 0.64]
(0) Burning 11 2 11 2 7 6 12 1 13 0 13 0 13 0 13 0.15 [0.08; 0.24]
  Throwing away 19 1 19 1 11 9 15 5 18 2 16 4 18 2 20 0.23 [0.15; 0.33]
  Giving to animals 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0.05 [0.01; 0.1]
  Drop in a pit 3 0 3 0 1 2 3 0 3 0 3 0 3 0 3 0.03 [0.00; 0.1]
  1. a Ampicillin
  2. b Chloramphenicol
  3. c Ciprofloxacin
  4. d Sulfonamide
  5. e Sulfamethoxazole/Trimethoprim
  6. f Tetracycline
  7. g Trimethoprim
  8. h Susceptible
  9. i Resistant
  10. j Binomial confidence intervals based on Jeffreys approximate method with a beta distribution
  11. k Missing values which were imputed with the R package missForest
  12. l Small 50–500 birds, medium 501–1000, large > 1000 birds