table 1. Characteristics of Patients With Positive Cultures for Gram-Negative Bacteria and Propensity Score-Matched Controls
No Positive Culture for MDR Gram-Negative Bacteria
MDR Acinetobacter Total
Sterile site Sterile
Age BMI <18.5
No./Mean %/SD No./Mean %/SD 14,591
218
Unsterile …… 176 69.7 27.6 675
…… 36 12.5
6.7 4.6
18.5–24.9 25–29.9 30–34.9 35+
Missing
Insurance No insurance Insurance Missing
Gender
Female Male
Missing
Race/Ethnicity White Black Asian
Native American Hispanic
Unknown/Missing
Marital status Married
Never married Divorced Separated Widowed
Unknown/Missing CCI/Elixhauser
Outpatient cost in 365 d prior to admission
419
14,170 2
9,604 2,746 38 71
1,388 744
6,189 1,526 3,799 550
1,916 611 1.6
$10,893 2.9
97.1 0.0
65.8 18.8 0.3 0.5 9.5 5.1
42.4 10.5 26.0 3.8
13.1 4.2 2.0
22,078 2
216 0
130 41 0
0
41 6
97 28 53 15 18 7
1.4 $11,714 0.9
99.1 0.0
59.6 18.8 0.0 0.0
18.8 2.8
44.5 12.8 24.3 6.9 8.3 3.2 1.8
26,537
0.14 0.14 0.02
0.13 0.00 0.07 0.10 0.27 0.12
0.04 0.07 0.04 0.14 0.16 0.05 0.08 0.03
19
1007 0
623 181 5 3
164 50
435 110 268 39
125 49
1.6 $10,743 NOTE. MDR, multidrug resistant; SD, standard deviation; BMI, body mass index; CCI, Charlsom comorbidity index. 1.9
98.1 0.0
60.7 17.6 0.5 0.3
16.0 4.9
42.4 10.7 26.1 3.8
12.2 4.8 2.0
13,647
0.07 0.07 0.02
0.11 0.03 0.04 0.03 0.19 0.01
0.00 0.01 0.00 0.00 0.03 0.03 0.00 0.01
105
3,392 1
2,253 657 5
19
373 191
1,503 340 890 125 495 145 1.6
$11,033 3.0
97.0 0.0
64.4 18.8 0.1 0.5
10.7 5.5
43.0 9.7
25.4 3.6
14.2 4.1 2.0
12,583
0.01 0.01 0.01
0.03 0.00 0.03 0.01 0.04 0.02
0.01 0.02 0.01 0.01 0.03 0.00 0.00 0.01
4,792 4,394 2,404 1,794 532
3,736 7,904 2,951
32.8 30.1 16.5 12.3 3.6
25.6 54.2 20.2
68.1 28.0 11 71 60 30 36 10
68
101 49
17.0 83.0 11.9 8.0 5.0
32.6 27.5 13.8 16.5 4.6
31.2 46.3 22.5
0.14 0.02
0.01 0.06 0.08 0.12 0.05
0.12 0.16 0.05
MDR Pseudomonas
Standardized Difference No./Mean %/SD
1,026 68
944 69.7 27.5 67
347 302 155 107 48
313 507 206
6.7
93.3 11.6 15.1 6.5
33.8 29.4 15.1 10.4 4.7
30.5 49.4 20.1
0.00 0.08
0.02 0.01 0.04 0.06 0.05
0.11 0.10 0.00
MDR Enterobacteriaceae
Standardized Difference No./Mean %/SD
3,498 360
3,125 70.3 27.6 162
1,157 1,066 570 422 121
888
1,909 701
10.3 89.7 11.6 7.1 4.6
33.1 30.5 16.3 12.1 3.5
25.4 54.6 20.0
Standardized Difference
0.04 0.00
0.00 0.01 0.00 0.01 0.01
0.01 0.01 0.00
hai mortality—mdr gram-negative bacteria and mrsa 851
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