California sickle cell cohort
| . | All . | Thrombosis . | No thrombosis . | |||
|---|---|---|---|---|---|---|
| Variables . | N . | % . | N . | % . | N . | % . |
| All | 6237 | 100.0% | 696 | 100.0% | 5541 | 100.0% |
| Sex | ||||||
| Male | 2948 | 47.3% | 282 | 40.5% | 2666 | 48.1% |
| Female | 3283 | 52.6% | 414 | 59.5% | 2869 | 51.8% |
| Race/ethnicity | ||||||
| Non-Hispanic white | 176 | 2.8% | 13 | 1.9% | 163 | 2.9% |
| African American | 5615 | 90.0% | 648 | 93.1% | 4967 | 89.6% |
| Hispanic | 252 | 4.0% | 17 | 2.4% | 235 | 4.2% |
| Asian/Pacific Islander | 34 | 0.5% | 4 | 0.6% | 30 | 0.5% |
| Other/unknown | 160 | 2.6% | 14 | 2.0% | 146 | 2.6% |
| Average visits/year* | ||||||
| <3 visits per year | 3583 | 57.4% | 225 | 32.3% | 3358 | 60.6% |
| ≥3 visits per year | 2654 | 42.6% | 471 | 67.7% | 2183 | 39.4% |
| Type of thrombosis | ||||||
| PE (±DVT) | 359 | 5.8% | 359 | 51.6% | — | — |
| LE proximal DVT | 132 | 2.1% | 132 | 19.0% | — | — |
| LE distal DVT | 28 | 0.4% | 28 | 4.0% | — | — |
| LE DVT NOS | 15 | 0.2% | 15 | 2.2% | — | — |
| Other NOS | 4 | 0.1% | 4 | 0.6% | — | — |
| Upper extremity | 158 | 2.5% | 158 | 22.7% | — | — |
| . | All . | Thrombosis . | No thrombosis . | |||
|---|---|---|---|---|---|---|
| Variables . | N . | % . | N . | % . | N . | % . |
| All | 6237 | 100.0% | 696 | 100.0% | 5541 | 100.0% |
| Sex | ||||||
| Male | 2948 | 47.3% | 282 | 40.5% | 2666 | 48.1% |
| Female | 3283 | 52.6% | 414 | 59.5% | 2869 | 51.8% |
| Race/ethnicity | ||||||
| Non-Hispanic white | 176 | 2.8% | 13 | 1.9% | 163 | 2.9% |
| African American | 5615 | 90.0% | 648 | 93.1% | 4967 | 89.6% |
| Hispanic | 252 | 4.0% | 17 | 2.4% | 235 | 4.2% |
| Asian/Pacific Islander | 34 | 0.5% | 4 | 0.6% | 30 | 0.5% |
| Other/unknown | 160 | 2.6% | 14 | 2.0% | 146 | 2.6% |
| Average visits/year* | ||||||
| <3 visits per year | 3583 | 57.4% | 225 | 32.3% | 3358 | 60.6% |
| ≥3 visits per year | 2654 | 42.6% | 471 | 67.7% | 2183 | 39.4% |
| Type of thrombosis | ||||||
| PE (±DVT) | 359 | 5.8% | 359 | 51.6% | — | — |
| LE proximal DVT | 132 | 2.1% | 132 | 19.0% | — | — |
| LE distal DVT | 28 | 0.4% | 28 | 4.0% | — | — |
| LE DVT NOS | 15 | 0.2% | 15 | 2.2% | — | — |
| Other NOS | 4 | 0.1% | 4 | 0.6% | — | — |
| Upper extremity | 158 | 2.5% | 158 | 22.7% | — | — |
The cohort was derived from the State of California Office of Statewide Health Planning and Development Patient Discharge and Emergency Department Utilization Datasets, as described in the text.
LE = lower extremity; NOS = not otherwise specified.
Average number of inpatient admissions or emergency department visits during the study period.