Table 1.

Demographics

Stage	Gender	Race	Sport/act	Age Sport Begun (y)	Years Play	Age at Onset Symptoms (y)	Interval between retirement and symptoms (y)	Interval between symptom onset and death (y)	Age at Death (decade)
II	M	C	Prof. Football	16	15	65	34	5	7
	M	AA	Prof. Football	11	10	45	24	8	5
	M	C	Prof. Football	9	20	28	−1	2	3
	M	C	Semi-prof. Football	8	18	30	4	32	6
	M	C	Prof. Hockey	4	24	26	−2	2	2
	M	C	College Football	6	15	21	0	4	2
	M	C	HS Football, Wrestler, Pole-Vaulter	6	11	20	3	5	2
III	M	AA	Prof. Football	10	17	28	1	28	5
	M	C	Prof. Football	11	23	35	1	11	4
	M	C	Prof. Football	14	17	35	4	32	6
	M	C	Prof. Football	10	21	40	9	5	4
	M	C	Prof. Football	14	15	24	−5	36	6
IV	M	AA	Prof. Boxer	12	19	30	−1	43	7
	M	C	Prof. Football	10	30	57	17	22	7
	M	C	Prof. Football	16	13	68	39	11	7
	M	AA	Prof. Football	9	22	50	19	12	6
	M	AA	Prof. Football/Veteran	14	23	65	28	15	8
	M	C	Prof. Football/Veteran	15	15	32	2	45	7

AA, African American; C, Caucasian; HS, High School; M, male; Semi-prof, Semiprofessional; Prof, Professional