TABLE 2

Characteristics of Study Population

AdmissionsaPatientsb
All Admissions (N = 2 921 383)Admissions With VTE (N = 13 449)PPatients With 1 VTE Admission (N = 9936)Patients With Recurrent VTE (N = 1401)cP
Age at admission, n (%)
    <28 d346 127 (12)2070 (15)1972 (20)95 (7)
    29 d to <1 y561 883 (19)2037 (15)1597 (16)197 (14)
    1 to <6 y845 142 (29)2745 (20)<.0011824 (18)299 (21)<.001
    6 to <13 y666 411 (23)2594 (19)1866 (19)297 (21)
    13–18 y501 820 (17)4003 (30)2677 (27)513 (37)
Male, n (%)1 608 381 (55)7356 (55).405475 (55)754 (54).62
Race/ethnicity, n (%)
    White1 894 205 (65)8970 (67)6583 (66)945 (67)
    Black619 006 (21)2631 (20)<.0011902 (19)289 (21).2
    Other/unknown408 172 (14)1848 (13)1451 (15)167 (12)
    Hispanic498 495 (17)2009 (15)<.0011488 (15)204 (15).68
Length of stay, d
    Mean628<.0013120<.001
    Median (interquartile range)3 (2–5)13 (5–33)<.00115 (6–38)11 (5–24)<.001
Disposition, n (%)
    Home2 758 392 (94)10 406 (77)
    Died29 929 (1)1030 (8)<.001
    Other133 062 (5)2013 (15)
CCC, n (%)
    Neuromuscular272 386 (9)1429 (11)<.0011072 (11)147 (10).74
    Cardiovascular249 475 (9)3465 (26)<.0012859 (29)277 (20)<.001
    Respiratory91 384 (3)890 (7)<.001768 (8)58 (4)<.001
    Malignancy258 103 (9)2121 (16)<.0011202 (12)340 (24)<.001
    All other390 517 (13)3637 (27)<.0012638 (27)414 (30).02
No CCC, n (%)1 855 168 (64)5029 (37)<.0013812 (38)463 (33)<.001
  • a Some patients had >1 admission.

  • b Each patient, even those with multiple admissions, was counted once.

  • c The age, length of stay, and CCC from the first admission were used.