Table 1.

Patient Characteristics, Stratified by Index Diagnosis

Characteristic*DVT (N=241 276)CVT (N=4754)
Age, mean (SD), y62.5 (17.9)43.6 (18.4)
Female127 661 (52.9)3483 (73.3)
Race
 White154 389 (65.3)2568 (55.3)
 Black38 130 (16.1)722 (15.5)
 Hispanic30 651 (13.0)889 (19.1)
 Asian5901 (2.4)213 (4.6)
 Other7545 (3.2)255 (5.4)
Payment source
 Medicare130 776 (54.2)853 (18.0)
 Medicaid28 390 (11.8)1104 (23.2)
 Private62 631 (26.0)2301 (48.4)
 Self-pay10 107 (4.2)265 (5.6)
 Other9331 (3.9)231 (4.9)
Hypertension124 299 (51.5)1326 (27.9)
Diabetes mellitus63 064 (26.1)653 (13.7)
Coronary heart disease52 191 (21.6)243 (5.1)
Congestive heart failure41 281 (17.1)149 (3.1)
Peripheral vascular disease16 393 (6.8)76 (1.6)
Chronic obstructive pulmonary disease33 174 (13.8)133 (2.8)
Chronic kidney disease44 541 (18.5)127 (2.7)
Primary hypercoagulable state4204 (1.7)309 (6.5)
Cancer44 835 (18.6)326 (6.9)
Trauma4793 (2.0)127 (2.7)
Atrial fibrillation34 717 (14.4)171 (3.6)
Pregnancy§44 276 (34.7)1237 (35.6)
Tobacco use19 022 (7.9)223 (4.7)
Alcohol use24 950 (10.3)430 (9.1)
Elixhauser comorbidities, mean (SD)3.3 (2.1)1.7 (1.6)
  • CVT indicates cerebral vein thrombosis; DVT, deep vein thrombosis; and SD, standard deviation.

  • * Data are presented as number (%) unless otherwise specified.

  • Self-reported by patients or their surrogates. Numbers do not sum to group totals because of missing race/ethnicity data in ≤2.3% of patients.

  • Numbers do not sum to group totals because of missing payment-source data in <0.01% of patients.

  • § The percentage of pregnant women is derived from the total number of women in the cohort.

  • Numbers represent the number of Elixhauser comorbid conditions, which comprise a comprehensive set of 28 comorbidity measures for use with large administrative data sets.