. 2017 May 5;177(2):103–113. doi: 10.1530/EJE-17-0077

Table 1.

Characteristics of reference and patient populations.

	Reference	No tumors	PPGLs	HNPGLs
	Group
n	423	1712	213	38
Age, median and (range)	45 (18–81)	54 (10–93)	50 (11–82)	48 (26–75)
Gender, F/M	238/185	852/860	117/96	22/16

F, females; HNPGLs, head and neck paragangliomas; M, males; PPGLs, pheochromocytomas and paragangliomas.