Table 5. Selected population characteristics of U.S. registrants compared to U.S. Census estimates.

	NF1 (N)	p*	NF2 (N)	p*	SCHW (N)	p*	U.S. Population (N)
Female	55.7% (1902)	< 0.001	61.0% (258)	< 0.001	54.7% (35)	0.64	50.8% (163 280 761)
White	79% (2698)	< 0.01	85.8% (363)	< 0.001	82.8 (53)	0.37	77.1% (247 813 910)
Black or African- American	6.3% (215)	< 0.001	2.4% (10)	< 0.001	0	0.002	13.3% (42 748 704)
Native American or Inuit	3.2% (108)	< 0.001	1.9%(8)	0.17	7.8% (5)	< 0.001	1.2% (3 857 026)
Total	100% (3417)		100% (423)		100% (64)		100% (321 418 820)

p* = Binomial test versus proportion in U.S. population