Development of a Dietary Factor Assessment Tool for Evaluating Associations between Visceral Fat Accumulation and Major Nutrients in Japanese Adults

Table 1

Anthropometric parameters of participants in Survey 1 and Survey 2.

	Sex	Age	n	Age (years)	BMI (kg/m^2)	Waist (cm)	VFA (cm^2)	t-test^1
Survey 1	Male	20–29	1317	26.3 ± 2.0	21.9 ± 2.8	78.1 ± 7.6	56 ± 37
		30–39	1888	34.5 ± 2.9	23.0 ± 3.1	81.5 ± 8.2	76 ± 42
		40–49	2810	44.9 ± 2.6	23.6 ± 3.0	84.5 ± 8.0	90 ± 42
		50–59	2046	54.1 ± 2.9	23.7 ± 2.8	85.5 ± 8.0	95 ± 41
		60+	311	61.9 ± 2.3	23.7 ± 2.4	86.2 ± 6.4	100 ± 37
	Female	20–29	678	26.0 ± 2.1	20.0 ± 2.5	72.0 ± 6.4	33 ± 19
		30–39	1029	34.6 ± 2.9	20.5 ± 2.6	74.4 ± 7.0	39 ± 21
		40–49	1029	43.9 ± 2.7	21.1 ± 3.0	77.0 ± 8.1	47 ± 26
		50–59	300	53.4 ± 2.7	21.5 ± 3.0	78.8 ± 8.6	54 ± 28
		60+	30	62.0 ± 1.6	22.7 ± 3.1	82.8 ± 10.6	68 ± 36
Survey 2	Male	30–39	113	35.2 ± 3.0	23.6 ± 3.2	83.0 ± 9.3		0.028
		40–49	118	44.3 ± 2.9	24.0 ± 2.9	84.2 ± 7.6		n.s.
		50–59	68	53.1 ± 2.7	23.8 ± 3.5	86.2 ± 8.2		n.s.
		60+	75	63.5 ± 3.0	23.4 ± 2.3	87.1 ± 6.6		n.s.
	Female	30–39	38	34.4 ± 3.0	20.6 ± 3.4	70.5 ± 8.1		n.s.
		40–49	42	43.8 ± 2.6	21.5 ± 2.8	72.8 ± 8.6		n.s.
		50–59	72	53.4 ± 2.5	21.4 ± 3.6	73.5 ± 10.4		n.s.
		60+	53	63.0 ± 2.7	22.4 ± 3.5	78.8 ± 11.1		n.s.

Mean ± SD. BMI: body mass index; VFA: visceral fat area. ¹Differences in BMI in each sex and age group between Survey 1 and Survey 2.