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. 2013 May 18;36(1):417–426. doi: 10.1007/s11357-013-9539-6

Table 1.

Body composition of men and women in each age group

	Age group (years)
	20–29	30–39	40–49	50–59	60–69	70–85	p value
Men (n = 896)
N	64	119	206	176	252	79
Age, years	25 (3)^abcde	36 (3)^fbcde	44 (3)^facde	55 (3)^fabde	64 (3)^fabce	74 (4)^fabcd	<0.001
Height, cm	171 (6)^bcde	169 (5)^bcde	166 (6)^facde	160 (6)^fabde	158 (6)^fabc	157 (5)^fabc	<0.001
Body mass, kg	67.7 (9.8)^bcde	65.8 (8.1)^cde	64.4 (8.0)^fcde	59.1 (8.1)^fabde	55.1 (8.2)^fabc	53.8 (7.7)^fabc	<0.001
BMI, kg/m²	23.2 (2.7)^de	23.1 (2.6)^de	23.3 (2.4)^de	23.0 (2.6)^de	22.1 (2.6)^fabc	21.9 (2.7)^fabc	<0.001
Body fat, %	18.2 (5.8)	18.7 (4.7)^cde	18.1 (3.5)^cde	17.0 (3.2)^ab	16.4 (3.2)^ab	16.7 (3.4)^ab	<0.001
FFM, kg	55.0 (6.1)^bcde	53.2 (4.9)^cde	52.5 (5.4)^fcde	48.9 (5.8)^fabde	45.9 (5.7)^fabc	44.7 (5.2)^fabc	<0.001
Women (n = 1,098)
N	86	88	179	316	342	87
Age, years	23 (3)^abcde	36 (3)^fbcde	45 (3)^facde	55 (3)^fabde	64 (3)^fabce	73 (3)^fabcd	<0.001
Height, cm	159 (5)^abcde	154 (6)^fcde	153 (5)^fcde	149 (5)^fabde	147 (5)^fabce	144 (5)^fabcd	<0.001
Body mass, kg	54.0 (6.5)^de	52.5 (7.0)^e	54.8 (7.9)^de	53.0 (7.7)^e	51.3 (7.5)^fbe	47.1 (7.8)^fabcd	<0.001
BMI, kg/m²	21.3 (2.2)^bcde	22.1 (2.7)^bcd	23.4 (3.2)^fa	23.8 (3.0)^fa	23.8 (3.2)^fa	22.7 (3.2)^f	<0.001
Body fat, %	24.1 (4.8)^e	23.4 (3.9)	24.8 (4.3)^e	24.7 (4.1)^e	24.1 (4.2)^e	21.7 (4.6)^fbcd	<0.001
FFM, kg	40.8 (3.7)^de	40.0 (4.2)^e	41.0 (4.3)^cde	39.7 (4.5)^bde	38.7 (4.4)^fbce	36.6 (4.4)^fabcd	<0.001

Significance was set at p < 0.05

BMI body mass index, FFM fat-free mass

^aSignificant group difference for ages 30–39

^bSignificant group difference for ages 40–49

^cSignificant group difference for ages 50–59

^dSignificant group difference for ages 60–69

^eSignificant group difference for ages 70–85

^fSignificant group difference for ages 20–29