Table 1 Baseline characteristics
Non-MDR-AB (n = 252) | % | MDR-AB (n = 1171) | % | p Value | |
|---|---|---|---|---|---|
Mean age, years (SD) | 61.0 (16.9) | 63.7 (15.4) | 0.014 | ||
Male sex | 134 | 53.2 % | 633 | 54.1 % | 0.799 |
Race/ethnicity | |||||
White | 134 | 53.2 % | 633 | 54.1 % | < 0.001 |
Black | |||||
Hispanic | 159 | 63.1 % | 738 | 63.0 % | |
Other | 55 | 21.8 % | 276 | 23.6 % | |
Admission source | |||||
Non-healthcare facility (including from home) | 167 | 66.3 % | 573 | 48.9 % | < 0.001 |
Clinic | 14 | 5.6 % | 26 | 2.2 % | |
Transfer from ECF | 13 | 5.2 % | 280 | 23.9 % | |
Transfer from another non-acute care facility | 3 | 1.2 % | 45 | 3.8 % | |
Emergency department | 54 | 21.4 % | 236 | 20.2 % | |
Other | 1 | 0.4 % | 11 | 1.0 % | |
Elixhauser comorbidities | |||||
Congestive heart failure | 61 | 24.2 % | 353 | 30.1 % | 0.060 |
Valvular disease | 21 | 8.3 % | 92 | 7.9 % | 0.800 |
Pulmonary circulation disease | 16 | 6.3 % | 107 | 9.1 % | 0.153 |
Peripheral vascular disease | 33 | 13.1 % | 145 | 12.4 % | 0.756 |
Paralysis | 32 | 12.7 % | 292 | 24.9 % | <0.001 |
Other neurological disorders | 44 | 17.5 % | 300 | 25.6 % | 0.006 |
Chronic pulmonary disease | 108 | 42.9 % | 507 | 43.3 % | 0.898 |
Diabetes without chronic complications | 65 | 25.8 % | 390 | 33.3 % | 0.020 |
Diabetes with chronic complications | 21 | 8.3 % | 96 | 8.2 % | 0.943 |
Hypothyroidism | 28 | 11.1 % | 182 | 15.5 % | 0.072 |
Renal failure | 66 | 26.2 % | 359 | 30.7 % | 0.160 |
Liver disease | 17 | 6.7 % | 37 | 3.2 % | 0.007 |
Peptic ulcer disease with bleeding | 0 | 0.0 % | 0 | 0.0 % | 1.000 |
AIDS | 0 | 0.0 % | 0 | 0.0 % | 1.000 |
Lymphoma | 1 | 0.4 % | 16 | 1.4 % | 0.336 |
Metastatic cancer | 20 | 7.9 % | 30 | 2.6 % | < 0.001 |
Solid tumor without metastasis | 17 | 6.7 % | 31 | 2.6 % | 0.001 |
Rheumatoid arthritis/collagen vascular | 5 | 2.0 % | 46 | 3.9 % | 0.132 |
Coagulopathy | 45 | 17.9 % | 134 | 11.4 % | 0.005 |
Obesity | 41 | 16.3 % | 191 | 16.3 % | 0.987 |
Weight loss | 49 | 19.4 % | 392 | 33.5 % | < 0.001 |
Fluid and electrolyte disorders | 145 | 57.5 % | 628 | 53.6 % | 0.258 |
Chronic blood loss anemia | 5 | 2.0 % | 16 | 1.4 % | 0.461 |
Deficiency anemia | 97 | 38.5 % | 593 | 50.6 % | < 0.001 |
Alcohol abuse | 22 | 8.7 % | 35 | 3.0 % | < 0.001 |
Drug abuse | 16 | 6.3 % | 29 | 2.5 % | 0.001 |
Psychosis | 13 | 5.2 % | 77 | 6.6 % | 0.402 |
Depression | 29 | 11.5 % | 161 | 13.7 % | 0.343 |
Hypertension | 158 | 62.7 % | 669 | 57.1 % | 0.104 |
Charlson comorbidity index score | |||||
0 | 58 | 23.0 % | 247 | 21.1 % | 0.542 |
1 | 60 | 23.8 % | 298 | 25.4 % | |
2 | 50 | 19.8 % | 244 | 20.8 % | |
3 | 35 | 13.9 % | 179 | 15.3 % | |
4 | 21 | 8.3 % | 112 | 9.6 % | |
5+ | 28 | 11.1 % | 91 | 7.8 % | |
Mean (SD) | 2.2 (2.4) | 2.0 (1.9) | 0.096 | ||
Median [IQR] | 2 [1–3] | 2 [1–3] | 0.873 | ||
Hospital characteristics | |||||
U.S. census region | |||||
Midwest | 49 | 19.4 % | 377 | 32.2 % | < 0.001 |
Northeast | 54 | 21.4 % | 164 | 14.0 % | |
South | 122 | 48.4 % | 436 | 37.2 % | |
West | 27 | 10.7 % | 194 | 16.6 % | |
Number of beds | |||||
< 200 | 26 | 10.3 % | 140 | 12.0 % | 0.007 |
200–299 | 49 | 19.4 % | 272 | 23.2 % | |
300–499 | 84 | 33.3 % | 454 | 38.8 % | |
500+ | 93 | 36.9 % | 305 | 26.0 % | |
Teaching | 137 | 54.4 % | 537 | 45.9 % | 0.014 |
Urban | 233 | 92.5 % | 1135 | 96.9 % | 0.001 |