Table 4.
Selected baseline demographic and clinical characteristics in patients with subsequent inpatient admissions for CP in 2006, 2010, and 2013 (× 105 visits)
| NEDS | |||
|---|---|---|---|
| 2006 | 2010 | 2013 | |
| Total (national estimates) [n (%)] | 2.70 (100.0) | 2.61 (100.0) | 1.82 (100.0) |
| Age, years, mean ± SE | 64.1 ± 0.2 | 64.1 ± 0.2 | 63.9 ± 0.2 |
| Female [n (%)] | 1.26 (46.7) | 1.18 (45.1) | 0.79 (43.1) |
| Primary payer type [n (%)] | |||
| Insured | 2.44 (90.2) | 2.32 (88.9) | 1.61 (88.2) |
| Private insurance | 0.69 (25.4) | 0.54 (20.8) | 0.33 (18.3) |
| Medicare | 1.49 (54.9) | 1.46 (55.8) | 1.02 (56.2) |
| Medicaid | 0.27 (9.9) | 0.32 (12.3) | 0.25 (13.7) |
| Uninsured | 0.26 (9.6) | 0.28 (10.9) | 0.21 (11.7) |
| Median household income [n (%)]a | |||
| 1st quarter ($1–$37,999/year) | 0.81 (30.0) | 0.82 (31.5) | 0.63 (34.7) |
| 2nd quarter ($38,000–$47,999/year) | 0.70 (25.9) | 0.72 (27.7) | 0.50 (27.5) |
| 3rd quarter ($48,000–$63,999/year) | 0.63 (23.4) | 0.55 (21.0) | 0.36 (19.8) |
| 4th quarter ($64,000+/year) | 0.50 (18.5) | 0.44 (16.7) | 0.27 (14.9) |
| CCI score, mean ± SE | 1.4 ± 0.01 | 1.6 ± 0.01 | 1.7 ± 0.02 |
| Length of stay, mean ± SE (day) | 2.0 ± 0.0 | 2.0 ± 0.0 | 2.0 ± 0.0 |
CP chest pain, 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