| 2009 NEDS | 2010 NEDS | 2012 NEDS |
---|---|---|---|
#COPD ED visits (% total) | 1,019,276 (0.79) | 1,039,825 (0.80) | 1,100,378 (0.82) |
Age, in years | Â | Â | Â |
 Mean (SE) | 65.99 (0.15) | 65.82 (0.13) | 65.49 (0.13) |
 Median (IQR) | 65.88 (55.71, 75.70) | 65.68 (55.52, 75.36) | 65.04 (55.34, 74.82) |
Sex | Â | Â | Â |
 Female | 561298 (55.13) | 573,622 (55.17) | 608,895 (55.34) |
Patient location (residence) | Â | Â | Â |
 Micropolitan/not metro | 283,145 (27.95) | 280,036 (27.07) | 297,501 (27.13) |
 Metropolitan (large or small) | 729,842 (72.05) | 754,433 (72.93) | 798,895 (72.87) |
Median house hold income | Â | Â | Â |
 1st quartile (< $38,999) | 371,277 (37.46) | 373,961 (36.88) | 428,687 (39.81) |
 2nd quartile ($39,000 to $47,999) | 307,056 (30.98) | 302,423 (29.83) | 295,576 (27.45) |
 3rd quartile ($48,000 to $62999) | 198,385 (20.01) | 206,248 (20.34) | 219,078 (20.34) |
 4th quartile ($63,000 or more) | 114,521 (11.55) | 131,230 (12.94) | 133,571 (12.40) |
Primary payer | Â | Â | Â |
 Medicare | 643,010 (63.18) | 652,143 (62.84) | 692,608 (63.02) |
 Medicaid | 137,000 (13.46) | 146,288 (14.10) | 163,123 (14.84) |
 Private insurance | 142,543 (14.00) | 139,120 (13.40) | 128,603 (11.70) |
 Self-pay/no charge | 71,418 (7.02) | 768,75 (6.92) | 84,873 (7.72) |
 Other | 23,818 (2.34) | 23,395 (0.49) | 29,812 (2.71) |
Hospital Region | Â | Â | Â |
 Northeast | 170,206 (16.70) | 175,398 (16.87) | 181,739 (16.52) |
 Midwest | 250,323 (24.56) | 261,053 (25.11) | 268,176 (24.37) |
 South | 457,795 (44.91) | 446,524 (42.94) | 498,801 (45.33) |
 West | 140,952 (13.83) | 156,850 (15.08) | 151,661(13.78) |
Teaching status of hospital | Â | Â | Â |
 Metropolitan non-teaching or non-metro | 730,087 (71.63) | 721,206 (69.36) | 742,700 (67.49) |
 Metropolitan teaching | 289,189 (28.37) | 318,619 (30.64) | 357,679 (32.51) |