Table 1.

Baseline characteristics (proportions and means) of women according to quintiles of total fruit and vegetable intake at baseline, NIH-AARP Diet and Health Study, 1995–1996.¹

Characteristic	Quintiles of Total Fruit and Vegetable Intake2
	Servings per 1,000 kcal/day
	<1.6	1.6–<2.1	2.1–<2.7	2.7–<3.4	≥3.4
No. of participants	22,417	22,418	22,418	22,418	22,417
Age (years)
<55	19.3	16.7	14.9	14.6	13.8
55–59	25.2	23.5	23.1	22.5	22.6
60–64	26.8	27.6	27.4	26.9	27.1
≥65	28.7	32.2	34.7	36.0	36.5
Education
Less than college graduate	69.5	64.7	62.3	61.0	61.5
College graduate/post-college	27.7	33.0	35.6	36.3	34.7
Missing	2.8	2.3	2.1	2.7	3.8
Race
White	91.9	92.7	91.7	90.8	86.8
Other	8.1	7.3	8.3	9.2	13.2
Body mass index (kg/m2)
<25	44.1	44.8	46.0	48.2	51.3
25–29	30.7	32.3	32.0	31.9	30.8
≥30	25.2	22.9	21.9	19.9	17.9
Age at menarche (years)
<13	46.7	46.4	47.9	48.3	48.0
13–14	43.6	43.8	43.1	42.4	42.0
≥15	9.8	9.8	9.0	9.3	9.9
Parity
Nulliparous	18.6	17.8	17.1	17.4	17.1
1	11.5	10.4	10.4	10.3	11.6
2	25.2	25.8	26.5	27.3	27.4
≥3	44.7	46.0	46.0	45.0	43.8
Oral contraceptive use
Never	56.7	57.4	58.9	60.0	63.0
Ever	43.3	42.6	41.1	40.0	37.1
Hormone therapy use
Never	62.1	58.4	58.1	58.7	61.6
Ever	37.9	41.6	41.9	41.3	38.4
Age at menopause (years)
Premenopausal	8.7	8.7	8.1	8.0	6.9
<45	13.0	10.6	10.2	9.8	10.1
45–49	27.8	26.0	24.5	24.8	24.9
≥55	50.0	54.3	56.8	57.0	57.6
Postmenopausal, unknown age	0.4	0.4	0.5	0.5	0.6
Smoking
Never	37.3	43.9	46.4	48.6	50.0
Former	35.1	40.2	41.4	41.3	41.5
Current	27.6	16.0	12.3	10.1	8.5
Vigorous physical activity
Never/rarely	33.5	24.0	19.2	16.3	14.4
≥1 time/month but <3 times/week	38.2	39.3	37.4	34.6	29.9
≥3 times/week	28.3	36.8	43.4	49.1	55.7
Means – delete this section
Age at baseline	60.9	61.5	61.8	61.9	62.1
Total energy intake, kcal/day	1696	1624	1565	1509	1450
Alcohol, drinks/day	0.80	0.51	0.41	0.34	0.25

¹Cohort of 112,088 women among whom 1142 endometrial cancer cases were ascertained.

²Intake, servings/1,000 kcal/day