Table 1.
Baseline Patient Demographic and Hospitalization Characteristics, Overall and by Cardiovascular Diseasea
| Variable | Overall (N=21,300) | Cardiovascular disease |
P value | |
|---|---|---|---|---|
| No (n=9370) | Yes (n=11,930) | |||
| Age (y), mean (95% CI) | 63.6 (62.9-64.3) | 55.4 (55.5-6.3) | 70.1 (69.3-70.7) | <.001 |
| Age groups (y) | <.001 | |||
| 18-40 | 2513 (11.8) | 2015 (21.5) | 498 (4.2) | |
| 41-64 | 7562 (35.5) | 4207 (44.9) | 3335 (28.1) | |
| ≥65 | 11225 (52.7) | 3148 (33.6) | 8077 (67.7) | |
| Female | 11040 (51.8) | 5360 (57.2) | 5680 (47.6) | <.001 |
| Race | <.001 | |||
| White | 66.9 | 61.4 | 71.3 | |
| Black | 11.3 | 12.8 | 9.8 | |
| Other | 21.8 | 25.8 | 18.9 | |
| Payer status | <.001 | |||
| Public | 74.7 | 63.8 | 83.3 | |
| Private | 20.5 | 29.4 | 13.5 | |
| Other | 4.8 | 6.8 | 3.2 | |
| Median socioeconomic status by national quartiles | .14 | |||
| 0-25 | 26.2 | 27.6 | 25.1 | |
| 25-50 | 26.1 | 25.7 | 26.4 | |
| 50-75 | 24.5 | 24.0 | 25.0 | |
| 75-100 | 23.2 | 22.7 | 23.5 | |
| Charlson comorbidity index score, mean | 2.1 | 1.6 | 2.5 | <.001 |
| Elixhauser comorbidity index score, mean | 3.5 | 2.4 | 4.3 | <.001 |
| Comorbidities | ||||
| Hypertension | 64.4 | 49.2 | 76.4 | <.001 |
| Hyperlipidemia | 36.0 | 22.9 | 46.4 | <.001 |
| Diabetes | 31.4 | 23.7 | 37.4 | <.001 |
| Obesity | 15.6 | 14.1 | 16.8 | .01 |
| Dementia | 8.3 | 5.1 | 10.9 | <.001 |
| Chronic pulmonary disease | 50.5 | 47.7 | 52.7 | .002 |
| Chronic renal disease | 32.4 | 19.6 | 42.3 | <.001 |
| History of organ transplant | 4.9 | 6.0 | 4.1 | .008 |
| HIV infection | 1.5 | 2.4 | 0.7 | <.001 |
| Chronic liver disease | 3.6 | 3.5 | 3.7 | .79 |
| Cancer | 19.4 | 23.3 | 16.2 | <.001 |
| Pneumonia | 17.7 | 14.8 | 20.2 | <.001 |
| Sepsis | 21.9 | 19.7 | 23.7 | .001 |
| Shock | 1.3 | 0.5 | 1.9 | <.001 |
| Acute respiratory failure | 39.7 | 32.2 | 45.6 | <.001 |
| Invasive mechanical ventilation | 14.2 | 10.4 | 17.1 | <.001 |
a
Data are presented as No. (percentage) of patients unless indicated otherwise.