Table 1.

Physicians who participated in the survey.

	LDR n = 442	HDR n = 145	P
M/F	182/259	83/62	0.001
Age (yrs)	44.3 ± 10.7	46.1 ± 11.6	0.09
Professional experience (yrs)	18.1 ± 10.8	20 ± 11.9	0.1
Anesthesiologists	198 (44.8%)	71 (49%)	0.57
Anest. residents	56 (12.7%)	19 (13.1%)
Neurologists	123 (27.8%)	30 (20.7%)
Neurl. residents	42 (9.5%)	12 (8.3%)
Neurosurgery	18 (4.1%)	11 (7.6%)
Nueros. residents	5 (1.1%)	2 (1.4%)
Practice hospital
University	47 (10.6%)	14 (9.6%)
Provincial	97 (21.9%)	60 (41.4%)	0.01
District	235 (53.2%)	52 (35.9%)
Municipal	63 (14.2%)	19 (13.1%)