Table 2.

Survey Response Rates by Subspecialty

Subspecialty of Experts	Total Number Invited to Participate (Percentage)	Total Responses (Subspecialty Response Ratea)
Neuro-oncologists	144 (69.6%)	44 (30.6%)
Medical oncologists	37 (17.9%)	12 (32.4%)
Pediatric neuro-oncologists	22 (10.6%)	4 (18.1)
Pediatric oncologists	4 (1.9%)	2 (50%)
	Total = 207	Total = 62

^aSubspecialty response rate = (total responses from a particular subspecialty / total number of subspecialists who received the survey) × 100%.