Table 1.
Characteristics of Eligible* Medicare Beneficiaries undergoing Central DXA in 2005 or 2006, by Type of Site Performing DXA (Facility vs. Non-Facility)
| DXA at a Non-Facility Site | DXA at a Facility | No DXA | ||||
|---|---|---|---|---|---|---|
| Number of Persons | % | Number of Persons | % | Number of Persons | % | |
| Total number of persons | 1,157,380 | 600,880 | 12,685,400 | |||
| Distance to Nearest Site Performing DXA, miles | ||||||
| < 5 | 930,860 | 80.4 | 456,880 | 76.0 | 9,227,320 | 72.7 |
| 5–9 | 132,540 | 11.5 | 81,260 | 13.5 | 1,634,880 | 12.9 |
| 10–24 | 87,020 | 7.5 | 58,780 | 9.8 | 1,552,920 | 12.2 |
| 25–39 | 5,460 | 0.5 | 3,160 | 0.5 | 191,340 | 1.5 |
| 40–54 | 980 | 0.1 | 480 | 0.1 | 45,120 | 0.4 |
| 55+ | 520 | 0.0 | 320 | 0.1 | 33,820 | 0.3 |
| Age, years | ||||||
| 65–69 | 220,640 | 19.1 | 119,420 | 19.5 | 2,259,800 | 17.8 |
| 70–74 | 346,320 | 29.9 | 185,220 | 30.8 | 3,426,920 | 27.0 |
| 75–79 | 300,200 | 25.9 | 158,260 | 26.3 | 3,012,460 | 23.7 |
| 80–84 | 197,620 | 17.1 | 96,260 | 16.0 | 2,251,880 | 17.8 |
| 85+ | 92,600 | 8.0 | 43,720 | 7.3 | 1,734,340 | 13.7 |
| Sex | ||||||
| Women | 990,720 | 85.6 | 537,920 | 89.5 | 6,029,360 | 47.5 |
| Men | 166,660 | 14.4 | 62,960 | 10.5 | 6,656,040 | 52.5 |
| Race/ethnicity | ||||||
| Caucasian | 1,049,280 | 90.7 | 549,220 | 91.4 | 11,190,100 | 88.2 |
| African American | 60,080 | 5.2 | 32,780 | 5.5 | 985,900 | 7.8 |
| Other | 48,020 | 4.1 | 18,880 | 3.1 | 509,400 | 4.0 |
| Annual Income, dollars | ||||||
| < 29,999 | 197,160 | 17.0 | 109,600 | 18.2 | 2,636,980 | 20.8 |
| 30,000–44,999 | 416,200 | 36.0 | 230,980 | 38.4 | 4,910,900 | 38.7 |
| 45,000–59,999 | 262,840 | 22.7 | 137,880 | 22.9 | 2,723,840 | 21.5 |
| 60,000–74,999 | 144,520 | 12.5 | 66,620 | 11.1 | 1,313,500 | 10.4 |
| 75,000+ | 136,660 | 11.8 | 55,800 | 9.3 | 1,100,180 | 8.7 |
| U.S. Geographic Region | ||||||
| East North Central | 173,100 | 12.0 | 147,280 | 8.6 | 2,402,940 | 10.4 |
| East South Central | 79,840 | 6.9 | 33,320 | 5.5 | 906,160 | 7.1 |
| Middle Atlantic | 151,520 | 11.8 | 84,440 | 8.2 | 1,768,020 | 10.5 |
| Mountain | 58,460 | 5.1 | 23,620 | 3.9 | 610,540 | 4.8 |
| New England | 58,020 | 5.0 | 48,960 | 8.1 | 716,000 | 5.6 |
| Pacific | 138,700 | 24.3 | 51,520 | 18.2 | 1,315,980 | 20.1 |
| South Atlantic | 280,740 | 6.9 | 109,440 | 8.9 | 2,553,800 | 8.5 |
| West North Central | 80,240 | 15.0 | 53,260 | 24.5 | 1,073,980 | 18.9 |
| West South Central | 136,760 | 13.1 | 49,040 | 14.1 | 1,337,980 | 13.9 |
| Charlson Cormorbidity Score | ||||||
| 0 | 500,720 | 43.3 | 269,780 | 44.9 | 5,461,360 | 43.1 |
| 1 | 158,880 | 13.7 | 78,320 | 13.0 | 1,743,520 | 13.7 |
| 2 | 201,240 | 17.4 | 106,720 | 17.8 | 1,956,220 | 15.4 |
| 3 | 111,580 | 9.6 | 55,460 | 9.2 | 1,245,000 | 9.8 |
| 4+ | 184,960 | 16.0 | 90,600 | 15.1 | 2,279,300 | 18.0 |
| Number of Annual Physician Office Visits | ||||||
| 0 Visits | 44,300 | 3.8 | 28,420 | 4.7 | 1,563,240 | 12.3 |
| 1–4 Visits | 286,360 | 24.7 | 167,060 | 27.8 | 3,810,900 | 30.0 |
| 5–9 Visits | 385,780 | 33.3 | 202,300 | 33.7 | 3,835,840 | 30.2 |
| 10–14 Visits | 224,940 | 19.4 | 108,420 | 18.0 | 1,925,860 | 15.2 |
| 15+ Visits | 216,000 | 18.7 | 94,680 | 15.8 | 1,549,560 | 12.2 |
| At least 1 office visit to a rheumatologist or endocrinologist in 2004 | 98,420 | 8.5 | 36,420 | 6.1 | 408,580 | 3.2 |
| Beneficiary Residence Geography | ||||||
| Urban Metropolitan | 782,040 | 67.6 | 344,220 | 57.3 | 7,428,360 | 58.6 |
| Rural | 375,340 | 32.4 | 256,660 | 42.7 | 5,257,040 | 41.4 |
Data are shown as n (%). All comparisons were significant at p < 0.0001.
*
eligible persons must have had full year Medicare Part A + Part B for 2003–2006, not have had a central DXA study done in 2003 or 2004, and be age ≥ 65 on 1/1/2003. These estimates reflect data from the Medicare national 5% sample.