Table 2.
Pre-existing conditions of Emergency Department patients admitted to the hospital with an infection. Odds ratios and p-values reflect differences between EMS vs. non-EMS patients.
| Pre-existing condition | EMS (n =1576) n (%) | Non-EMS (n = 3037) n (%) | Total (n = 4613) n (%) | Odds ratio (95% CI) or p-value |
|---|---|---|---|---|
| Alcoholism | 41 (2.6%) | 43 (1.4%) | 84 (1.8%) | 1.9 (1.2–2.9) |
| Coronary artery disease | 339 (21.5%) | 407 (13.4%) | 746 (16.2%) | 1.8 (1.5–2.1) |
| Myocardial infarction | 105 (6.7%) | 120 (4.0%) | 225 (4.9%) | 1.7 (1.3–2.3) |
| Stroke | 176 (11.2%) | 147 (4.8%) | 323 (7.0%) | 2.5 (2.0–3.1) |
| Congestive heart failure | 262 (16.6%) | 184 (6.1%) | 446 (9.7%) | 3.1 (2.5–3.8) |
| Connective tissue disease | 66 (4.2%) | 76 (2.5%) | 142 (3.1%) | 1.7 (1.2–2.4) |
| Chronic obstructive pulmonary disease | 220 (14.0%) | 137 (4.5%) | 357 (7.7%) | 3.4 (2.7–4.3) |
| Dementia | 125 (7.9%) | 43 (1.4%) | 168 (3.6%) | 6.0 (4.2–8.7) |
| Diabetes | 414 (26.3%) | 626 (20.6%) | 1040 (22.5%) | 1.4 (1.2–1.6) |
| Hemiplegia | 23 (1.5%) | 20 (0.7%) | 43 (0.9%) | 2.2 (1.2–4.3) |
| Hypertension | 802 (50.9%) | 1115 (36.7%) | 1917 (41.6%) | 1.8 (1.6–2.0) |
| Peptic ulcer disease | 12 (0.8%) | 23 (0.8%) | 35 (0.8%) | 1.0 (0.5–2.1) |
| Intravenous drug abuse | 23 (1.5%) | 49 (1.6%) | 72 (1.6%) | 0.9 (0.5–1.5) |
| Liver disease | 92 (5.8%) | 194 (6.4%) | 286 (6.2%) | 0.9 (0.7–1.2) |
| Peripheral vascular disease | 99 (6.3%) | 118 (3.9%) | 217 (4.7%) | 1.7 (1.2–2.2) |
| Prosthetic heart valve | 10 (0.6%) | 24 (0.8%) | 34 (0.7%) | 0.8 (0.3–1.7) |
| Renal insufficiency | 127 (8.1%) | 99 (3.3%) | 226 (4.9%) | 2.6 (2.0–3.4) |
| End-stage renal disease (dialysis) | 87 (5.5%) | 101 (3.3%) | 188 (4.1%) | 1.7 (1.3–2.3) |
| Vascular catheter | 73 (4.6%) | 127 (4.2%) | 200 (4.3%) | 1.1 (0.8–1.5) |
| Urinary catheter | 29 (1.8%) | 26 (0.9%) | 55 (1.2%) | 2.2 (1.2–3.9) |
| Human immunodeficiency virus | 64 (4.1%) | 178 (5.9%) | 242 (5.3%) | 0.7 (0.5–0.9) |
| Chronic steroid use | 129 (8.2%) | 220 (7.2%) | 349 (7.6%) | 1.1 (0.9–1.4) |
| Splenectomy | 4 (0.3%) | 10 (0.3%) | 14 (0.3%) | 0.8 (0.2–2.7) |
| Transplant recipient | 35 (2.2%) | 132 (4.4%) | 167 (3.6%) | 0.5 (0.3–0.7) |
| Cancer | 288 (18.3%) | 554 (18.2%) | 842 (18.3%) | 1.0 (0.9–1.2) |
| Number of comorbidities–median (IQR) | 2 (1–4) | 1 (0–2) | 2 (1–3) | Rank-sum p <0.01 |
| Charlson comorbidity inde–median (IQR) | 2 (0–3) | 1 (0–2) | 1 (0–3) | Rank-sum p <0.01 |
EMS: Emergency Medical Services.