Table 4.

Demographic Variables by Vitamin Group

	No-Vitamin Group	Vitamin Group
Age**	M = 52.9, SD = 20.6	M = 64.3, SD = 17.2
Gender**	101 females 162 males	119 females 99 males
Ethnicity**	93 African-American 164 Caucasian 5 Asian	42 African-American 172 Caucasian 1 Hispanic
Sleep*	45 insomniacs 208 normal sleepers	47 insomniacs 161 normal sleepers

^*p = .06.

^**p < .01.