Table 2.
Characteristics of hypertensive Medicare beneficiaries in the 5% Medicare sample with and without an ambulatory blood pressure monitoring (ABPM) claim from 2007-2010
| ABPM claim | |||
|---|---|---|---|
| Characteristics | Yes (n=1,532) | No (n=9,273) | P value* |
| Age, years | <0.001 | ||
| 65 to 74 | 660 (43.1%) | 5406 (58.3%) | |
| 75 to 84 | 660 (43.1%) | 2564 (27.7%) | |
| 85 and above | 212 (13.8%) | 1303 (14.1%) | |
| Male | 452 (29.5%) | 3309 (35.7%) | <0.001 |
| Race/ethnicity | <0.001 | ||
| White | 1349 (88.1%) | 7484 (80.7%) | |
| Black | 96 (6.3%) | 1041 (11.2%) | |
| Hispanic | 32 (2.1%) | 286 (3.1%) | |
| Asian | 30 (2.0%) | 252 (2.7%) | |
| Other | 25 (1.6%) | 210 (2.3%) | |
| Medicaid buy-in† | 270 (17.6%) | 2225 (24.0%) | <0.001 |
| Diabetes† | 437 (28.5%) | 3035 (32.7%) | 0.001 |
| Coronary heart disease† | 693 (45.2%) | 3179 (34.3%) | <0.001 |
| Stroke† | 96 (6.3%) | 552 (6.0%) | 0.632 |
| Chronic kidney disease† | 301 (19.6%) | 1119 (12.1%) | <0.001 |
| Number of hypertension diagnoses† | <0.001 | ||
| 2 | 234 (15.3%) | 2556 (27.6%) | |
| 3 | 221 (14.4%) | 2050 (22.1%) | |
| 4 | 222 (14.5%) | 1511 (16.3%) | |
| 5 | 179 (11.7%) | 950 (10.2%) | |
| 6 or more | 676 (44.1%) | 2206 (23.8%) | |
| Number of antihypertensive medications† | <0.001 | ||
| 0 | 73 (4.8%) | 699 (7.5%) | |
| 1 | 205 (13.4%) | 1918 (20.7%) | |
| 2 | 350 (22.8%) | 2673 (28.8%) | |
| 3 | 378 (24.7%) | 2245 (24.2%) | |
| 4 or more | 526 (34.3%) | 1738 (18.7%) | |
Data in the table are expressed as number (%).
*
P-values are obtained using chi-squared tests.
†
Variables determined from the period before the beneficiaries index date are defined using the 365 days before, and not including the index date.