Table 3.
Selected baseline demographic and clinical characteristics in patients with ED visits for CP in 2006, 2010, and 2013 (× 105 visits)
| NEDS | |||
|---|---|---|---|
| 2006 | 2010 | 2013 | |
| Total (national estimates) [n (%)] | 5.89 (100.0) | 7.22 (100.0) | 7.73 (100.0) |
| Age, years, mean ± SE | 63.3 ± 0.1 | 62.9 ± 0.2 | 63.2 ± 0.2 |
| Female [n (%)] | 2.68 (45.5) | 3.23 (44.7) | 3.37 (43.6) |
| Primary payer type [n (%)]a | |||
| Insured | 5.25 (89.1) | 6.35 (88.0) | 6.79 (87.9) |
| Private insurance | 1.52 (25.9) | 1.68 (23.2) | 1.54 (19.9) |
| Medicare | 3.13 (53.2) | 3.78 (52.3) | 4.27 (55.2) |
| Medicaid | 0.59 (10.0) | 0.90 (12.5) | 0.99 (12.8) |
| Uninsured | 0.63 (10.7) | 0.85 (11.8) | 0.93 (12.0) |
| Median household income [n (%)]a | |||
| 1st quarter ($1–$37,999/year) | 1.76 (29.9) | 2.30 (31.9) | 2.75 (35.5) |
| 2nd quarter ($38,000–$47,999/year) | 1.63 (27.7) | 2.09 (29.0) | 2.20 (28.4) |
| 3rd quarter ($48,000–$63,999/year) | 1.38 (23.4) | 1.54 (21.3) | 1.59 (20.5) |
| 4th quarter ($64,000+/year) | 0.99 (16.7) | 1.10 (15.2) | 1.00 (13.0) |
| CCI score, mean ± SE | 1.2 ± 0.01 | 1.3 ± 0.01 | 1.4 ± 0.01 |
| Safety net [n (%)] | 1.65 (28.0) | 2.18 (30.2) | 2.21 (28.6) |
CP chest pain, ED emergency department, 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