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Table 1 Study demographics

From: The shared microbiota of humans and companion animals as evaluated from Staphylococcus carriage sites

  Total sampled Humans only Humans and pets Pets only
Baseline study visit     
 Households     
  Number of households 25 3 4 18
  Number of people, median (range) 4 (1–8) 4 (2–5) 5 (4–7) 4 (1–8)
  Number of pets, median (range) 2 (0–13) 0 2 (1–10) 2 (1–13)
 Human subjects     
Index subjects 6 3 3 -
  Female:male 3:3 2:1 1:2 -
  Age in years, median (range) 8.5 (2–48) 5 (2–48) 13 (6–15) -
  CPS + at any site, n = 4 3 1 2  
S. aureus + at any site, n = 4 1 1 0  
  MRSA + at any site 1 1 0 -
 Non-index subjects 24 7 17 -
  Female:male 12:12 4:3 8:9 -
  Age in years, median (range) 25 (3–54) 23 (9–42) 26 (3–54) -
  CPS + at any site, n = 18 15 1 14  
S. aureus + at any site, n = 18 3 0 3  
  MRSA + at any site 3 0 3 -
 Pet subjects     
  Dogs 36 - 5 31
  Female:male 21:15 - 3:2 18:13
  Age in months, median (range) 24 (2–132) - 24 (6–120) 24 (2–132)
  Neutered:unneutered 9:27 - 1:4 8:23
  CPS + at any site 34 - 4 30
S. aureus + at any site 6 - 1 5
  MRSA + at any site 2 - 2 0
 Cats 20 - 3 17
  Female:male 11:9 - 3:0 8:9
  Age in months, median (range) 27 (4–135) - 12 (8–20) 53 (4–135)
  Neutered:unneutered 16:4 - 2:1 14:3
  CPS + at any site 13 - 2 11
S. aureus + at any site 4 - 1 3
  MRSA + at any site 2 - 2 0
Three-month follow-up study visit     
  Households     
 Number of households 20 2 3 15
  Number randomized to treatment 12 2 2 8
  Number of people, median (range) 4 (1–8) 4.5 (4–5) 5 (4–7) 4 (1–8)
  Number of pets, median (range) 2 (0–10) 0 2 (1–8) 3 (1–10)
 Human subjects     
  Index subjects 4 2 2 -
 Randomized to treatment 3 2 1 -
 Female:male 1:3 1:1 0:2 -
 Age in years, median (range) 9 (2–15) 3.5 (2–5) 14 (13–15) -
 CPS + at any site, n = 4 3 0 3  
S. aureus + at any site, n = 4 1 0 1  
 MRSA + at any site 0 0 0 -
 Non-index subjects 17 6 11 -
  Randomized to treatment 14 6 8  
  Female:male 8:9 3:3 5:6 -
  Age in years, median (range) 26 (3–54) 21 (9–42) 26 (3–54) -
  CPS + at any site, n = 14 11 3 8  
S. aureus + at any site, n = 14 4 1 3  
  MRSA + at any site 0 0 0 -
 Pet subjects     
  Dogs 19 - 4 15
  Female:male 12:7 - 2:2 10:5
  Age in months, median (range) 37 (6–132) - 42 (6–120) 37 (9–132)
  Neutered:unneutered 7:12 - 1:3 6:9
  CPS + at any site 17 - 3 14
S. aureus + at any site 4   0 4
  MRSA + at any site 3 - 0 3
 Cats 14 - 2 12
  Female:male 8:6 - 2:0 6:6
  Age in months, median (range) 15 (4–135) - 10 (8–12) 23 (4–135)
  Neutered:unneutered 10:4 - 1:1 9:3
  CPS + at any site 11 - 1 10
S. aureus + at any site 4   0 4
  MRSA + at any site 1 - 0 1
  1. For pet-only households, humans were present, but were not eligible for participation. Data from the 3-month follow-up visit are limited to people and pets sampled longitudinally, excluding new household members present at the 3-month visit.