Article Figures & Data
Figures
- Fig 1.
Subgroups of patients in hospital’s administrative database with the ICD-9 diagnosis of “anomalies of cerebrovascular system,” code 747.81.
Tables
Lesion n (%) Brain AVM 464 (65.7) Cavernous malformation 94 (13.3) Unruptured cerebral aneurysm 71 (10.1) Dural AVM (arteriovenous fistula) 55 (7.8) Venous malformation 15 (2.1) Other† 7 (1.0) Total 706 (100) * Distribution of lesions correctly coded with the ICD-9 diagnosis of 747.81, “anomalies of cerebrovascular system.”
† Including vein of Galen malformation (n = 3), Sturge-Weber syndrome (n = 1), anomalous venous drainage (n = 1), venous varix (n = 1), and von Hippel-Lindau disease (n = 1).
- TABLE 2:
Rates of first hospital admissions for cerebrovascular malformation determined by using state discharge data for 1995–1999*
State Hospital Admissions Unique Patients State Population (millions) Rate of First Hospital Admission (cases per 100,000 person-years) California 3534 2157 32.2 1.5 (95% CI: 1.4, 1.6) New York 2667 1664 18.2 1.8 (95% CI: 1.7, 1.9) * Study periods: January 1995 through June 1999 for California, January 1995 through December 1999 for New York.
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