Table 2.
Prevalence of Thromboprophylaxis Within 3 Months Before Index, Stratified by Selected VTE Risk Factors, among Olmsted County Residents Age ≥65 Years With And Without Symptomatic Objectively-Diagnosed Incident VTE while a Resident of a Local Nursing Home 1988 through 2000. Unpublished Data For All Olmsted County Residents Age ≥65 Years With and Without Symptomatic Objectively-Diagnosed VTE 1988 through 2000 Are Provided for Comparative Purposes.
| Subject Characteristics | Olmsted County Residents in a Nursing Home Age≥65 Years 1/1/1988 through 12/31/2000 |
Entire Olmsted County Population Age≥65 Years 1/1/1988 through 12/31/2000 |
||
|---|---|---|---|---|
|
| ||||
| Cases N=182 |
Controls N=364 |
Cases N=734 |
Controls N=830 |
|
| Any thromboprophylaxis*, n (%) | 85 (47%) | 125 (34%) | 275 (37%) | 87 (10%) |
| Pharmacologic only, n (% of any) | 66 (36%) | 104 (29%) | 186 (25%) | 75 (9.0%) |
| Mechanical only, n (% of any) | 3 (1.6%) | 7 (1.9%) | 44 (16%) | 4 (0.5%) |
| Both, n (% of any) | 16 (8.8%) | 14 (3.8%) | 45 (6.1%) | 8 (1.0%) |
| Hospitalization with surgery*, n | 35 | 49 | 179 | 35 |
| Any thromboprophylaxis, n (%) | 27 (77%) | 46 (94%) | 129 (72%) | 23 (66%) |
| Pharmacologic only, n (%) | 13 (37%) | 30 (61%) | 66 (37%) | 14 (40%) |
| Mechanical only, n (%) | 3 (8.6%) | 4 (8.2%) | 32 (18%) | 4 (11%) |
| Both, n (%) | 11 (31%) | 12 (24%) | 31 (17%) | 5 (14%) |
| Hospitalization without surgery*, n | 85 | 122 | 236 | 82 |
| Any thromboprophylaxis, n (%) | 54 (64%) | 71 (58%) | 136 (58%) | 32 (39%) |
| Pharmacologic only, n (%) | 49 (58%) | 66 (54%) | 110 (47%) | 29 (35%) |
| Mechanical only, n (%) | 0 (0.0%) | 3 (2.5%) | 12 (5.1%) | 0 (0.0%) |
| Both, n (%) | 5 (5.9%) | 2 (1.6%) | 14 (5.9%) | 3 (3.7%) |
| No hospitalization*, n | 62 | 193 | 319 | 713 |
| Any thromboprophylaxis, n (%) | 4 (6.5%) | 8 (4.2%) | 10 (3.1%) | 32 (4.5%) |
| Pharmacologic only, n (%) | 4 (6.5%) | 8 (4.2%) | 10 (3.1%) | 32 (4.5%) |
| Mechanical only, n (%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) |
| Both, n (%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) |
| Trauma/fracture*, n | 35 | 51 | 95 | 33 |
| Any thromboprophylaxis, n (%) | 24 (69%) | 41 (80%) | 60 (63%) | 16 (48%) |
| Pharmacologic only, n (%) | 14 (40%) | 31 (61%) | 32 (34%) | 13 (39%) |
| Mechanical only, n (%) | 3 (8.6%) | 4 (7.8%) | 15 (16%) | 1 (3.0%) |
| Both, n (%) | 7 (20%) | 6 (12%) | 13 (14%) | 2 (6.1%) |
| Active malignancy†, n | 33 | 33 | 196 | 45 |
| Any thromboprophylaxis, n (%) | 14 (42%) | 17 (52%) | 72 (37%) | 9 (20%) |
| Pharmacologic only, n (%) | 10 (30%) | 15 (45%) | 42 (21%) | 5 (11%) |
| Mechanical only, n (%) | 0 (0.0%) | 0 (0.0%) | 15 (7.7%) | 2 (4.4%) |
| Both, n (%) | 4 (12%) | 2 (6.1%) | 15 (7.7%) | 2 (4.4%) |
*
Within 3 months before index
†
Within 3 months before or 3 months after index