Table 1. Characteristics of survey respondents (N = 912)^*.

Characteristic	N (%)
Specialty
Vascular	327 (36)
Neurosurgery	312 (30)
Cardiac	273 (34)
Years in Practice
0-10	196 (23)
11-20	215 (25)
21-30	233 (27)
31+	223 (26)
Gender
Male	850 (94)
Female	50 (6)
Practice Type
Private practice	343 (38)
Academic practice	323 (36)
Private with academic affiliation	167 (19)
Other	61 (7)
ICU Administrative Model
Closed	96 (11)
Open	277 (32)
Mixed	500 (57)
Other	4 (0.5)
Number of High-risk Procedures per Month
0	34 (4)
1-5	311 (37)
6-10	256 (30)
11+	239 (28)

^*Numbers do not sum to 912 because not all responders answers all questions.