TABLE 1.

Characteristics of 624 participants from the National Long Term Care Survey used of this study

	Total (n=624)		Male (n=275)		Female (n=349)
Variable	n	%*	n	%*	n	%*
Age
65-69	158	25.3	80	29.1	78	22.3
70-74	178	28.5	75	27.3	103	29.5
75-79	206	33.0	91	33.1	115	33.0
80-84	63	10.1	24	8.7	39	11.2
85-89	19	3.0	5	1.8	14	4.0
Race
Caucasian	575	92.1	254	92.4	321	92.0
African-American	37	5.9	15	5.5	22	6.3
Others	11	1.8	5	1.8	6	1.7
Education
Less than
high school	175	28.0	84	30.5	91	26.1
High school
graduate or more	440	70.5	186	67.6	254	72.8
Smoker
current	51	8.2	31	11.3	20	5.7 †
not current	556	89.1	238	86.5	318	91.1
BMI (Kg/m2)
≤25	227	36.4	87	31.6	140	40.1 ‡
25-30	229	36.7	127	46.2	102	29.2
>30	133	21.3	49	17.8	84	24.1
Functional Status
Non-disabled	388	62.2	184	66.9	204	58.5
IADL only	53	8.5	25	9.1	28	8.0
1-2 ADL	107	17.1	43	15.6	64	18.3
3-4 ADL	51	8.2	14	5.1	37	10.6
5-6 ADL	15	2.4	7	2.5	8	2.3
institutionalized	7	1.1	1	0.4	6	1.7
Apo E genotype
E 2/2	3	0.5	2	0.7	1	0.3
E 2/3	91	14.6	36	13.1	55	15.8
E 2/4	17	2.7	8	2.9	9	2.6
E 3/3	382	61.2	176	64.0	206	59.0
E 3/4	120	19.2	49	17.8	71	20.3
E 4/4	11	1.8	4	1.5	7	2.0
Diabetes
Yes	204	32.7	92	33.5	112	32.1
No	420	67.3	183	66.5	237	67.9

^*Percentages for some variables do not add to 100 due to missing cases.

^†p<0.05 for Chi-square comparison of males vs. females.

^‡p<0.001 for Chi-square comparison of males vs. females.