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Table 2 Bivariate analysis of demographic information and risk factors for MRSA

From: Prevalence of and risk factors for methicillin-resistant Staphylococcus aureus nasal carriage in the West of Iran: a population-based cross-sectional study

Factor

SANC Frequency (% column)

MRSA

p

Crude OR

95% CI

Positive No. (%)

Negative No. (%)

Sex

 Male

113 (35.09)

42 (37.17)

71 (62.83)

0.001

6.48

2.13–19.66

 Female

68 (24.46)

13 (19.12)

55 (80.88)

   

Agea

 1–10 years

34 (44.74)

10 (29.41)

24 (70.59)

–

1

–

 10–20 years

38 (57.58)

16 (42.10)

22 (57.90)

0.002

10.64

2.37–47.79

 20–30 years

20 (26.32)

4 (20.00)

16 (80.00)

0.78

1.33

0.17–10.52

 30–40 years

12 (10.08)

4 (33.33)

8 (66.77)

0.48

2.18

0.25–19.29

 40–50 years

18 (16.07)

8 (44.44)

10 (55.56)

0.05

8.85

1.02–76.89

 50–60 years

32 (40.51)

10 (31.25)

22 (68.75)

0.08

4.62

0.83–25.53

 60–70 years

27 (37.50)

3 (11.11)

24 (88.99)

0.19

0.12

0.004–3.03

Hospital visit in the last 3 months

 Yes

58 (32.77)

20 (34.48)

38 (65.51)

0.09

2.96

0.85–10.36

 No

123 (29.08)

35 (28.45)

88 (71.54)

   

Chronic renal disorder

 Yes

27 (39.71)

11 (40.74)

16 (59.25)

0.91

1.14

0.14–9.01

 No

154 (28.95)

44 (28.57)

110 (71.42)

   

Smoking habitsa

 Ex-smoker

22 (44.90)

4 (18.18)

18 (81.81)

–

1

–

 Current smoker

39 (31.97)

16 (41.02)

23 (58.97)

0.09

12.96

0.64–263.94

 Non-smoker

120 (27.97)

35 (29.16)

85 (70.83)

0.23

6.4

0.3–136.99

Occupation

 Yes

97 (35.93)

22 (22.68)

75 (77.31)

0.04

1.32

1.24–3.52

 No

84 (25.45)

33 (39.28)

51 (60.71)

   

Household members who have a profession in hospital care

 Yes

36 (47.37)

16 (44.44)

20 (55.55)

0.003

13.07

2.44–70.11

 No

145 (80.11)

39 (26.89)

106 (73.10)

   

Skin and soft tissue infection in the last 12 months

 Yes

14 (36.84)

9 (64.28)

5 (35.71)

0.02

46.57

2.03–1068.89

 No

167 (29.72)

46 (27.54)

121 (72.45)

   

Allergy

 Yes

15 (22.39)

3 (20.00)

12 (80.00)

0.06

0.1

0.01–0.82

 No

166 (31.14)

52 (11.32)

114 (88.68)

   

Diabetes mellitus

 Yes

7 (36.84)

1 (14.28)

6 (85.71)

0.9

0.04

0.001–1.62

 No

174 (29.95)

54 (31.03)

20 (68.96)

   

Surgery in the last 12 months

 Yes

4 (26.67)

1 (25.00)

3 (75.00)

0.82

0.65

0.02–25.57

 No

177 (30.26)

54 (30.50)

123 (69.49)

   

Chronic liver disorder

 Yes

0 (0.00)

0 (0.00)

0 (0.00)

1

–

–

 No

181 (30.37)

55 (30.38)

126 (69.61)

   

Use of steroids

 Yes

3 (25.0)

1 (33.33)

2 (66.66)

0.22

13.95

0.21–912.44

 No

178 (30.27)

54 (30.38)

124 (69.66)

   

Oral contraceptive

 Yes

8 (21.62)

3 (37.5)

5 (62.5)

0.31

4.61

0.24–89.79

 No

173 (30.73)

52 (30.05)

121 (69.94)

   

Alcoholism

 Yes

7 (41.18)

3 (42.85)

4 (57.14)

0.388

4.04

0.176–92.58

 No

174 (29.58)

52 (29.88)

122 (70.11)

   
  1. a Regression was used with the first value within variable acting as reference value
  2. Variables entered: sex (male versus female), and the other variables, yes versus no.
  3. OR: Odds ratio
  4. CI: Confidence interval