Table 3. Mean differences in body composition outcomes at age 60–64 years per standard deviation increase in weight and height from 2 to 20 years. Height and weight at each age are mutually adjusted.

Outcome and age (year) of weight and height	Weight		Height
	Males	Females	Males	Females
Fat mass (kg)
2	0.61 (−0.01, 1.22), 0.05	0.31 (−0.46, 1.08), 0.44	0.35 (−−0.26, 0.97), 0.26	0.56 (−0.21, 1.33), 0.15
4	0.63 (−0.04, 1.30), 0.06	1.29 (0.41, 2.17), <0.01	−0.19 (−0.86, 0.48), 0.57	0.09 (−0.77, 0.95), 0.83
7	1.76 (0.93, 2.58), <0.01	1.19 (0.25, 2.13), 0.01	−0.60 (−1.42, 0.22), 0.15	0.85 (−0.10, 1.80), 0.08
11	2.44 (1.71, 3.17), <0.01	2.56 (1.64, 3.48), <0.01	−0.62 (−1.35, 0.12), 0.10	0.04 (−0.88, 0.95), 0.94
15	3.03 (2.18, 3.88), <0.01	2.88 (2.11, 3.65), <0.01	−1.29 (−2.14, −0.44), <0.01	0.58 (−0.19, 1.35), 0.14
20	3.12 (2.49, 3.75), <0.01	3.63 (2.91, 4.34), <0.01	−0.46 (−1.09, 0.18), 0.16	−0.34 (−1.05, 0.38), 0.35
Lean mass (kg)
2	2.03 (1.46, 2.59), <0.01	0.91 (0.48, 1.34), <0.01	0.99 (0.42, 1.55), <0.01	0.94 (0.51, 1.37), <0.01
4	2.06 (1.45, 2.66), <0.01	1.53 (1.05, 2.01), <0.01	0.87 (0.26, 1.48), 0.01	0.72 (0.24, 1.19), <0.01
7	2.98 (2.28, 3.68), <0.01	1.50 (1.00, 2.01), <0.01	0.72 (0.03, 1.42), 0.04	1.23 (0.72, 1.74), <0.01
11	2.29 (1.64, 2.94), <0.01	1.42 (0.92, 1.93), <0.01	1.43 (0.78, 2.07), <0.01	1.20 (0.70, 1.70), <0.01
15	2.82 (2.06, 3.59), <0.01	1.86 (1.45, 2.27), <0.01	0.56 (−0.20, 1.33), 0.15	1.57 (1.16, 1.98), <0.01
20	3.78 (3.29, 4.28), <0.01	2.51 (2.14, 2.88), <0.01	1.50 (1.00, 2.00), <0.01	1.15 (0.79, 1.52), <0.01
Appendicular lean mass (kg)
2	0.96 (0.69, 1.24), <0.01	0.46 (0.26, 0.66), <0.01	0.57 (0.30, 0.85), <0.01	0.44 (0.23, 0.64), <0.01
4	1.05 (0.76, 1.34), <0.01	0.72 (0.50, 0.95), <0.01	0.47 (0.18, 0.77), <0.01	0.40 (0.18, 0.62), <0.01
7	1.43 (1.09, 1.76), <0.01	0.72 (0.48, 0.95), <0.01	0.42 (0.09, 0.76), 0.01	0.61 (0.37, 0.85), <0.01
11	1.05 (0.75, 1.36), <0.01	0.68 (0.45, 0.92), <0.01	0.77 (0.46, 1.08), <0.01	0.58 (0.34, 0.82), <0.01
15	1.25 (0.87, 1.62), <0.01	0.88 (0.69, 1.07), <0.01	0.34 (−0.04, 0.71), 0.08	0.77 (0.58, 0.96), <0.01
20	1.68 (1.44, 1.93), <0.01	1.16 (0.99, 1.33), <0.01	0.86 (0.61, 1.10), <0.01	0.59 (0.42, 0.77), <0.01
Fat/lean ratio
2	−0.52 (−1.48, 0.44), 0.29	−1.14 (−2.74, 0.45), 0.16	−0.09 (−1.04, 0.87), 0.86	−0.64 (−2.22, 0.95), 0.43
4	−0.46 (−1.48, 0.56), 0.37	−0.24 (−2.03, 1.56), 0.80	−1.11 (−2.13, −0.10), 0.03	−0.90 (−2.66, 0.87), 0.32
7	0.67 (−0.62, 1.95), 0.31	−0.40 (−2.38, 1.58), 0.69	−1.61 (−2.89, −0.33), 0.01	−0.09 (−2.09, 1.91), 0.93
11	2.38 (1.22, 3.53), <0.01	3.41 (1.48, 5.34), <0.01	−2.16 (−3.32, −1.01), <0.01	−2.27 (−4.19, −0.35), 0.02
15	3.07 (1.71, 4.43), <0.01	3.38 (1.72, 5.03), <0.01	−2.71 (−4.06, −1.35), <0.01	−1.71 (−3.37, −0.05), 0.04
20	2.50 (1.47, 3.52), <0.01	3.92 (2.38, 5.46), <0.01	−2.03 (−3.07, −0.99), <0.01	−3.12 (−4.66, −1.58), <0.01
Android/gynoid ratio
2	−0.55 (−1.86, 0.76), 0.41	−0.74 (−1.80, 0.32), 0.17	−1.77 (−3.08, −0.46), 0.01	0.42 (−0.63, 1.48), 0.43
4	−0.33 (−1.75, 1.09), 0.65	−0.10 (−1.27, 1.06), 0.86	−1.96 (−3.37, −0.54), 0.01	−0.96 (−2.11, 0.19), 0.10
7	0.62 (−1.15, 2.40), 0.49	0.45 (−0.83, 1.73), 0.49	−1.58 (−3.34, 0.18), 0.08	−1.19 (−2.48, 0.10), 0.07
11	2.16 (0.58, 3.75), 0.01	2.35 (1.11, 3.59), <0.01	−2.64 (−4.23, −1.05), <0.01	−1.88 (−3.12, −0.65), <0.01
15	3.16 (1.29, 5.04), <0.01	1.81 (0.76, 2.87), <0.01	−2.58 (−4.46, −0.71), 0.01	−1.37 (−2.43, −0.31), 0.01
20	2.28 (0.84, 3.73), <0.01	2.33 (1.30, 3.36), <0.01	−2.81 (−4.27, −1.35), <0.01	−2.05 (−3.08, −1.02), <0.01

Notes: cells show β (95% confidence intervals), and P-values; sample sizes in the different periods were (male/female): 2 (593/627), 4 (653/700), 7 (624/679), 11 (628/679), 15 (582/623), 20 (601/682).