Table 6. Distribution of trans fatty acid intake among 225 Japanese subjects^a .

	By living area				By age group								Total
	Urban		Rural		30–39 years		40–49 years		50–59 years		60–69 years
	n	%	n	%	n	%	n	%	n	%	n	%	n	%
Women	57	100	62	100	27	100	29	100	32	100	31	100	119	100
Trans fatty acid (g/day)
0.47–0.99	4	7.0	11	17.7	0	0	1	3.4	2	6.3	12	38.7	15	12.6
1.00–1.49	16	28.1	24	38.7	6	22.2	10	34.5	10	31.3	14	45.2	40	33.6
1.50–1.99	18	31.6	16	25.8	11	40.7	6	20.7	13	40.6	4	12.9	34	28.6
2.00–2.49	7	12.3	5	8.1	2	7.4	4	13.8	6	18.8	0	0	12	10.1
2.50–2.99	4	7.0	5	8.1	4	14.8	4	13.8	0	0	1	3.2	9	7.6
3.00–4.08	7	12.3	2	3.2	4	14.8	4	13.8	1	3.1	0	0	9	7.6
Trans fatty acid (% total energy)
0.31–0.49	3	5.3	11	17.7	0	0	0	0	3	9.4	11	35.5	14	11.8
0.50–0.74	16	28.1	27	43.5	6	22.2	12	41.4	10	31.3	15	48.4	43	36.1
0.75–0.99	18	31.6	15	24.2	12	44.4	6	20.7	11	34.4	4	12.9	33	27.7
1.00–1.24	11	19.3	4	6.5	5	18.5	4	13.8	6	18.8	0	0	15	12.6
1.25–1.49	6	10.5	4	6.5	2	7.4	5	17.2	2	6.3	1	3.2	10	8.4
1.50–1.95	3	5.3	1	1.6	2	7.4	2	6.9	0	0	0	0	4	3.4
Men	51	100	55	100	20	100	29	100	28	100	29	100	106	100
Trans fatty acid (g/day)
0.68–0.99	6	11.8	5	9.1	0	0	0	0	5	17.9	6	20.7	11	10.4
1.00–1.49	13	25.5	21	38.2	4	20.0	11	37.9	7	25.0	12	41.4	34	32.1
1.50–1.99	12	23.5	19	34.5	7	35.0	9	31.0	9	32.1	6	20.7	31	29.2
2.00–2.49	9	17.6	6	10.9	6	30.0	4	13.8	3	10.7	2	6.9	15	14.2
2.50–2.99	7	13.7	2	3.6	2	10.0	1	3.4	3	10.7	3	10.3	9	8.5
3.00–3.49	4	7.8	2	3.6	1	5.0	4	13.8	1	3.6	0	0	6	5.7
Trans fatty acid (% total energy)
0.20–0.49	10	19.6	17	30.9	0	0	8	27.6	7	25.0	12	41.4	27	25.5
0.50–0.74	20	39.2	27	49.1	9	45.0	9	31.0	16	57.1	13	44.8	47	44.3
0.75–0.99	15	29.4	11	20.0	9	45.0	9	31.0	5	17.9	3	10.3	26	24.5
1.00–1.23	6	11.8	0	0	2	10.0	3	10.3	0	0	1	3.4	6	5.7

^aAccording to population density,⁴⁵ 4 residential areas were grouped into urban (Osaka and Okinawa) and rural (Nagano and Tottori) areas.