Table 2.
Selected baseline demographic and clinical characteristics in patients with subsequent inpatient admissions for CAD in 2006, 2010, and 2013 (× 105 visits)
| NEDS | |||
|---|---|---|---|
| 2006 | 2010 | 2013 | |
| Total (national estimates) [n (%)] | 10.05 (100.0) | 9.02 (100) | 8.22 (100) |
| Age, years, mean ± SE | 66.5 ± 0.1 | 66.4 ± 0.1 | 66.5 ± 0.1 |
| Female, n (%) | 4.13 (41.1) | 3.62 (40.1) | 3.18 (38.7) |
| Primary payer type [n (%)]a | |||
| Insured | 9.16 (91.2) | 8.08 (89.6) | 7.32 (89.1) |
| Private insurance | 2.92 (29.0) | 2.36 (26.2) | 2.00 (24.3) |
| Medicare | 5.65 (56.3) | 5.02 (55.6) | 4.71 (57.3) |
| Medicaid | 0.59 (5.9) | 0.70 (7.8) | 0.62 (7.5) |
| Uninsured | 0.87 (8.7) | 0.93 (10.3) | 0.88 (10.8) |
| Median household income [n (%)]a | |||
| 1st quarter ($1–$37,999/year) | 2.73 (27.2) | 2.50 (27.7) | 2.48 (30.2) |
| 2nd quarter ($38,000–$47,999/year) | 2.60 (25.8) | 2.52 (27.9) | 2.27 (27.6) |
| 3rd quarter ($48,000–$63,999/year) | 2.45 (24.4) | 2.04 (22.6) | 1.83 (22.2) |
| 4th quarter ($64,000+/year) | 2.07 (20.6) | 1.74 (19.3) | 1.44 (17.5) |
| CCI score, mean ± SE | 1.4 ± 0.01 | 1.6 ± 0.01 | 1.6 ± 0.01 |
| Length of stay, mean ± SE (day) | 4.2 ± 0.0 | 4.0 ± 0.0 | 4.0 ± 0.0 |
CAD coronary artery disease, NEDS Nationwide Emergency Department Sample, SE standard error, CCI Quan-Charlson comorbidity index
aPercentages may not sum to 100.0% due to missing values or unreported categories