Table 1 Study population characteristics by participant category, in Guangdong, China.

From: Livestock-associated methicillin and multidrug resistant S. aureus in humans is associated with occupational pig contact, not pet contact

Characteristics

Total

Pig worker

Pet-owning worker

Control worker

p-Value

p

p 1

p 2

p 3

Age(years)

 15–24

176(12.4)

38(15.6)

32(16.0)

106(10.8)

<0.001

<0.001

<0.001

<0.001

 25–34

429(30.1)

124(50.8)

69(34.5)

236(24.1)

    

 35–44

483(34.0)

43(17.6)

68(34.0)

372(38.0)

    

 45–60

334(23.5)

39(16.0)

31(15.5)

264(27.0)

    

 Sex, male

841(59.1)

188(77.1)

85(42.5)

568(58.1)

<0.001

<0.001

<0.001

<0.001

 Antibiotic use in the last month

694(48.9)

154(63.1)

103(51.8)

437(44.7)

<0.001

0.016

<0.001

0.070

 Medical facility visit in the last month

580(40.8)

111(45.5)

101(50.5)

368(37.6)

0.001

0.293

0.024

0.001

Prevalence

 S. aureus

146(10.3)

37(15.2)

23(11.5)

86(8.8)

0.011

0.261

0.003

0.229

 Nonsusceptible S. aureusa

139(9.8)

37(15.2)

22(11.0)

80(8.2)

0.004

0.198

0.001

0.196

 MDRSAb

73(5.1)

33(13.5)

6(3.0)

34(3.5)

<0.001

<0.001

<0.001

0.735

 MRSA

42(3.0)

26(10.7)

3(1.5)

13(1.3)

<0.001

<0.001

<0.001

0.849

  1. Note. Values are expressed as number of participants (the proportion of participants surveyed), except where specified otherwise.
  2. MDRSA, multidrug-resistant S. aureus; MRSA, methicillin-resistant S. aureus.
  3. p: Comparison among pig workers, pet-owning workers and control workers.
  4. p1: Comparison between pig workers and pet-owning workers.
  5. p2: Comparison between pig workers and control workers.
  6. p3: Comparison between pet-owning workers and control workers.
  7. aS. aureus intermediate or resistant to any antibiotic class.
  8. bIncluding S. aureus isolates nonsusceptible to ≥3 classes of antibiotics or MRSA isolates.
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