Table 2

Characteristics and risk factors for the patients enrolled in this study, stratified by the presence or absence of MRSA


No MRSA (N = 77)
MRSA (N = 105)
Total (N = 182)

Age
44.0
(15.2)
35.7
(11.6)
39.2
(13.8)
African American
31
(40.3)
48
(45.7)
79
(43.4)
Caucasian
46
(59.7)
57
(54.3)
103
(56.6)
Hispanic
1
(1.3)
4
(3.8)
5
(2.7)
Female
29
(37.7)
43
(41.0)
72
(39.6)
Male
48
(62.3)
62
(59.0)
110
(60.4)
BMI
30.5
(11.1)
27.1
(6.1)
28.6
(8.7)
Sociodemographic risk factors






     Homeless currently or in the past year
5
(6.5)
16
(15.2)
21
(11.5)
     Live in a group home currently or in past year
3
(3.9)
13
(12.4)
16
(8.8)
     Live in a nursing home currently
3
(3.9)
1
(1.0)
4
(2.2)
     Prison resident currently or in past year
14
(18.2)
17
(16.2)
31
(17.0)
     Participate in group sports in past year
14
(18.2)
23
(21.9)
37
(20.3)
     Used IV drugs in past year
4
(5.2)
7
(6.7)
11
(6.0)
     How many sex partners in past month
0.6
(0.7)
1.4
(2.7)
1.1
(2.1)
     Healthcare worker currently or in past year
3
(3.9)
10
(9.5)
13
(7.1)
Sexuality






          Lesbian
1
(1.3)
0
(0.0)
1
(0.6)
          Homosexual
2
(2.6)
3
(2.9)
5
(2.8)
          Heterosexual
74
(96.1)
97
(93.3)
171
(94.5)
          Bisexual
0
(0.0)
4
(3.8)
4
(2.2)
Medical risk factors






     Abscess, boil, spider bite or other requiring physician in past year
19
(24.7)
36
(34.3)
55
(30.2)
     Diabetes
16
(20.8)
12
(11.4)
28
(15.4)
     Antibiotics currently or in past year
33
(42.9)
48
(45.7)
81
(44.5)
     Immunosuppressed
6
(7.8)
3
(2.9)
9
(4.9)
     Inpatient in the past year
24
(32.9)
23
(23.5)
47
(27.5)
Either been or been in contact with:






     Homeless currently or in the past year
19
(24.7)
33
(31.4)
52
(28.6)
     Live in a group home currently or in past year
14
(18.2)
27
(25.7)
41
(22.5)
     Prison resident currently or in past year
21
(27.3)
45
(42.9)
66
(36.3)
     Used IV drugs in past year
6
(7.8)
14
(13.3)
20
(11.0)
     Healthcare worker currently or in past year
26
(33.8)
26
(24.8)
52
(28.6)
     Diabetes
37
(48.1)
47
(44.8)
84
(46.2)
     Abscess, boil, spider bite or other requiring physician in past year
26
(33.8)
48
(45.7)
74
(40.7)
Infection






     Abscess
54
(70.1)
96
(91.4)
150
(82.4)
     Cellulitis
32
(41.6)
52
(49.5)
84
(46.2)
     Infection on scalp or neck
4
(5.20
8
(7.6)
12
(6.6)
     Infection on face
10
(13.0)
9
(8.6)
19
(10.4)
     Infection on trunk
16
(20.8)
26
(24.8)
42
(23.1)
     Infection on pelvis
12
(15.6)
21
(20.0)
33
(18.1)
     Infection on Extremity
38
(49.4)
56
(53.3)
94
(51.6)
     Number of infections
1.6
(3.0)
2.4
(3.6)
2.1
(3.3)
     Spontaneous infection
43
(55.8)
80
(76.2)
123
(67.6)

Jacobus et al. BMC Emergency Medicine 2007 7:19   doi:10.1186/1471-227X-7-19