Skip to main content

Table 2 Demographics and clinical characteristics of hemodialysis patients with and without methicillin-resistant S. aureus (MRSA) colonization

From: Methicillin-resistant Staphylococcus aureus nasal carriage among patients receiving hemodialysis in Taiwan: prevalence rate, molecular characterization and de-colonization

Demographic and clinical data

No. (%) of subjects

Odds ratio

95% Confidence interval

pvaluea

 

Total (n=296)

MRSA (n=19)

Non-MRSA (n=277)

   

Male

136(45.9)

6(31.6)

130(46.9)

0.522

0.193~1.413

0.194

Age

      

19-29

6(2.0)

0

6(2.1)

0.934

0.906~0.963

1.000

30-59

155(52.4)

10(52.6)

145(52.3)

1.011

0.399~2.566

0.981

≥60

135(45.6)

9(47.4)

126(45.5)

1.079

0.425~2.737

0.873

Underlying diseases

      

DM

125(42.2)

11(57.9)

114(41.2)

1.966

0.767~5.041

0.153

Hypertension

194(65.5)

16(84.2)

178(64.3)

2.920

0.830~10.268

0.081

HBV carrier

32(10.8)

0

32(11.6)

0.928

0.897~0.960

0.241

HCV carrier

46(15.5)

2(10.5)

44(15.9)

0.620

0.138~2.781

0.406

Liver cirrhosis

8(2.7)

0

8(2.3)

0.934

0.905~0.963

1.000

Gastric ulcer

92(31.1)

5(26.3)

87(31.4)

0.780

0.272~2.234

0.643

History of GI bleeding

26(8.8)

3(15.8)

23(8.3)

2.071

0.562~7.635

0.226

Asthma

2(0.7)

0

2(0.7)

0.935

0.908~0.964

1.000

History of TB infection

5(1.7)

0

5(1.8)

0.935

0.907~0.964

1.000

COPD

16(5.4)

0

16(5.8)

0.932

0.903~0.962

0.610

Cancer

25(8.4)

1(5.3)

24(8.7)

0.586

0.075~4.580

1.000

Current disease

      

Pneumonia

3(1.0)

0

3(1.1)

0.935

0.907~0.964

1.000

URTI

51(17.2)

4(21.1)

47(17.0)

1.305

0.415~4.108

0.752

Other risk factors

      

Hospitalization c

95(32.1)

4(21.1)

91(35.0)

0.545

0.176~1.689

0.287

Previous S. aureus infection c,d

42(14.2)

4(21.1)

38(13.7)

1.677

0.529~5.323

0.325

S. aureus skin infection c,d,e

13(4.4)

1(5.3)

12(4.3)

1.227

0.151~9.970

0.586

Previous catheter related infectionc

34(11.5)

3(15.8)

31(11.2)

1.488

0.410~5.397

0.467

Using of immunosuppressant

18(6.1)

2(10.5)

16(5.8)

1.919

0.407~9.039

0.324

Alcohol drinking

24(8.1)

0

24(8.7)

0.930

0.900~0.961

0.381

Average duration of HD(year) b

7.03±0.35

5.60±1.28

7.13±0.36

  

0.289

Duration > 3 years

11(57.9)

195(70.4)

206(69.6)

0.578

0.224~1.490

0.252

Duration > 5 years

8(42.1)

152(54.9)

160(54.1)

0.598

0.233~1.533

0.280

Blood access

      

Hickman

22(7.4)

1(5.3)

21(7.6)

0.677

0.086~5.326

1.000

A-V fistula

180(60.8)

11(57.9)

169(61.0)

0.879

0.342~2.254

0.788

Gortex

94(31.8)

7(36.8)

87(31.4)

1.274

0.485~3.347

0.623

Other catheter f

8(2.7)

2(10.5)

6(2.2)

5.314

0.997~28.331

0.087

  1. DM: diabetes mellitus, HBV: hepatitis B virus , HCV: hepatitis C virus, GI: gastrointestinal, TB: tuberculosis, COPD: chronic obstructive pulmonary disease, URTI: upper respiratory tract infection, inf.: infection, HD: hemodialysis, A-V: arterial venous.
  2. a For categorical variables, Fisher’s exact test was used for extreme proportions (expected count <5) instead of Pearson’s chi-square test.
  3. b data was presented as the mean value ± standard error of the mean for continuous variables. Performed by Student t test.
  4. c any event happened in one year before sampling.
  5. d including general S. aureus infection without known susceptibility or resistance of antibiotics.
  6. e including impetigo, furuncle, carbuncle, cellulitis, and abscess.
  7. f including Foley and tracheostomy tube.
Back to article page

BMC Infectious Diseases

ISSN: 1471-2334

Contact us