Table 1.
Characteristics of Residents Treated or Not Treated With an Anticoagulant, by Time Point
| December 31, 2011 | December 31, 2016 | |||
|---|---|---|---|---|
| Untreated (n=19 598) | Treated (n=14 361) | Untreated(n=19 733) | Treated (n=18 054) | |
| Demographics | ||||
| Age in y, median (Q1, Q3) | 86 (80, 91) | 84 (78, 89) | 86 (79, 91) | 83 (77, 89) |
| Women, % | 70.9 | 71.2 | 66.2 | 65.9 |
| Hospital admissions in prior year, % | ||||
| Number of hospitalizations, % | ||||
| 2 to 3 | 38.0 | 38.4 | 36.8 | 37.9 |
| 4+ | 13.7 | 14.1 | 12.1 | 13.1 |
| Ischemic stroke | 5.0 | 7.3 | 4.7 | 7.3 |
| Extracranial bleed | 7.9 | 5.3 | 7.2 | 4.5 |
| Intracranial hemorrhage | 1.0 | 0.4 | 1.2 | 0.5 |
| Unique medications, median (Q1, Q3) | 17 (12, 22) | 19 (14, 24) | 16 (12, 22) | 18 (14, 24) |
| Select medications, %a | ||||
| NSAID | 18.3 | 15.8 | 17.7 | 16.9 |
| Antiplatelet | 22.5 | 9.5 | 18.5 | 8.6 |
| Statin | 42.4 | 51.0 | 51.1 | 60.6 |
| SSRI | 52.3 | 55.9 | 50.0 | 52.0 |
| ACE inhibitor or ARB | 49.8 | 54.0 | 45.3 | 50.1 |
| Select comorbidities, %b | ||||
| Diabetes mellitus | 35.2 | 41.0 | 36.3 | 41.8 |
| Heart failure | 42.1 | 48.7 | 42.0 | 48.1 |
| Hypertension | 82.7 | 84.3 | 85.7 | 87.8 |
| Coronary artery disease | 33.4 | 31.2 | 31.3 | 29.3 |
| Anemia | 38.4 | 32.4 | 39.2 | 33.2 |
| Fall since nursing home admission/last assessment | 22.1 | 18.8 | 21.8 | 18.1 |
| Stroke | 19.6 | 24.3 | 12.5 | 16.2 |
| CHA2DS2‐Vasc Risk Score, % | ||||
| 2 to 3 | 13.6 | 11.1 | 15.7 | 13.0 |
| 4 | 25.0 | 22.3 | 26.9 | 24.3 |
| 5 | 27.1 | 27.3 | 28.1 | 29.7 |
| 6 | 19.4 | 21.7 | 18.7 | 20.3 |
| 7+ | 14.5 | 17.4 | 10.1 | 12.4 |
| ATRIA Bleeding Risk Score, %c | ||||
| Low (0–3) | 54.1 | 60.8 | 50.7 | 55.8 |
| Intermediate (4) | 3.6 | 4.6 | 5.8 | 6.5 |
| High (5–10) | 42.3 | 34.6 | 43.6 | 37.7 |
| Cognitive skills, % | ||||
| Mildly impaired | 25.4 | 26.2 | 26.1 | 26.5 |
| Moderately to severely impaired | 44.4 | 34.2 | 39.6 | 29.4 |
| ADL score (0–16), median (Q1, Q3)d | 9 (6, 12) | 9 (6, 11) | 10 (7, 11) | 9 (7, 11) |
ACE indicates angiotensin‐converting enzyme; ADLs, activities of daily living; ARB, angiotensin‐receptor blocker; ATRIA, Anticoagulation and Risk Factors in Atrial Fibrillation; NSAID, non‐steroidal anti‐inflammatory drugs; SSRI, selective serotonin reuptake inhibitor.
a
Any Part D claim during the 12‐month period.
b
Resident characteristics exclude residents with missing values for fall history, heart failure, hypertension, diabetes mellitus, and stroke (n≤10 for all characteristics with missing values in 2011 and 2016).
c
Percentages may not total 100% because of rounding.
d
Higher scores indicate greater limitation in ADLs.