Preexisting Atrial Fibrillation Associated with Higher Mortality in Patients with Methicillin-Resistant Staphylococcus aureus Bloodstream Infections: Analysis of the National Inpatient Sample
Table 1
Study population patient characteristics stratified by MRSA-BSI with and without AF.
Characteristics
MRSA-BSI with AF (N, %)
MRSA-BSI without AF (N, %)
value
(Total N = 52,805)
43,505 (82%)
9,300 (18%)
Mean age, in years (IQR)
75.3 (IQR = 74.8–75.9)
59.6 (IQR = 59.2–60.03)
<0.0001
18–44 years
870 (2%)
2,074 (22.3%)
45–64 years
6,0004 (13.8%)
3,143 (33.8%)
≥65 years
36,631 (84.2%)
4,083 (43.9%)
Race
<0.0001
White
36,109 (83%)
6,445 (69.2%)
Black
3,437 (7.9%)
1,404 (15.1%)
Hispanic
2,045 (4.7%)
911 (9.8%)
Others
1,914 (4.4%)
549 (5.9%)
Male
28,409 (65.3%)
5,087 (54.7%)
<0.0001
Female
15,096 (34.7%)
4213 (45.3%)
<0.0001
Insurance
<0.0001
Medicare
35,761 (82.2%)
4808 (51.7%)
Medicaid
2,001 (4.6%)
1,832 (19.7%)
Private insurance including HMO
4742 (10.9%)
1972 (21.2%)
Other/self-pay/uninsured
1,001 (2.3%)
707 (7.4%)
Number of hospital beds
0.01
Small
10,006 (23%)
1981 (21.3%)
Medium
12,442 (28.4%)
2,437 (26.2%)
Large
21,153 (48.6%)
4,883 (52.5%)
Hospital teaching status
0.001
Nonteaching hospital
15,488 (35.6%)
2,892 (31.1%)
Teaching hospital
28,017 (64.4%)
6,408 (68.9%)
Hospital region
0.21
Northeast
10,403 (23.9%)
2,111 (22.7%)
Midwest
10,398 (23.9%)
2,083 (22.4%)
South
15,096 (34.7%)
3,404 (36.6%)
West
7,613 (17.5%)
1,702 (18.3%)
Median annual income expected for patient’s ZIP code, USD
