Table 1.

Body composition changes from birth to 1 year in girls

Girls
Age (months)	Authora	Method	Ethnicity	Weight (kg)	FM (g)	% FM	TATV (ml)	TBW (%)	TBW (% of FFM)	FFM (g)	% Protein
Birth	Moulton	Chemical analyses						81.9
Birth	Fomon	Multicompartment		3.35	495	14.9		68.6	80.6	2830	12.8
Birth	Hull	Peapod	Multiethnic/American	3.25	409	12.3				2842
Birth	Au	Peapod	Multiethnic	3.42		9.2				2947
Birth	Andersern	Peapod	Ethiopian	3		7.8
Birth	Harrington	MRI	Multiethnicb	3.3	757	23.4
Birth	Olhager	MRIvDoubly labeled water	Swedish	3.9	574	14	1107.4	66.4
0.5	Butte	Multicompartmentc	Multiethnicd	3.64	520	14.2		73.2	83.1	3350	12.2
1	Fomon	Multicompartment		4.13	668	16.2		67.5	80.5	3780	12.7
1	Olhager	MRI/Doubly labeled water	Swedish	3.84	613	16	1014	64.2
1.5	Andersen	Peapod	Ethiopian	4.54		21.1
2	Olhager	MRI/Doubly labeled water	Swedish	5	1134	22.6	1693	61
3	Fomon	Multicompartment		5.74	1367	23.8		60.9	79.9		12
3	Butte	Multicompartmentc	Multiethnicd	6.03	1900	31.5		55.3	81.1	4370	10.2
3	Olhager	MRI/Doubly labeled water	Swedish	5.57	1399	25	2088	57.4
3.5	Andersen	Peapod	Ethiopian	6.05		28.7
4	Moulton	Chemical analyses						77.8
4	Fomon	Multicompartment		6.3	1585	25.2		59.6	79.7		11.9
4	Olhager	MRI/Doubly labeled water	Swedish	6.95	1796	25.8	2681	58.6
6	Fomon	Multicompartment		7.25	1915	26.4		58.4	79.4		12.9
6	Butte	Multicompartmentc	Multiethnicd	7.6	2440	28.8		54.9	80.7	5210	10.4
6	Andersen	Peapod	Ethiopian	7.29		27.7
6	Fields	Peapod		7.12	1921	26.7				5188
6	Fields	DXA		7.12	2284	31.1				5022
12	Fomon	Multicompartment		9.18	2175	23.7		60.1	78.8	7860	12.9
12	Butte	Multicompartmentc	Multiethnicd	9.5	2620	27.6		56.9	78.8	6880	12.2

Abbreviations: DXA, dual-energy X-ray absorptiometry; FFM, fat-free mass; FM, fat mass; MRI, magnetic resonance imaging; TATV, total adipose tissue volume; TBW, total body water.

^aMoulton,²¹ Fomon,¹⁴ Hull,³⁰ Au,³⁹ Andersen,⁴⁰ Harrington,⁴¹ Olhager,⁴² Butte³⁸ and Fields.⁴⁵

^b20 Caucasian, 8 African/Afro-Caribbean, 2 Asian and 8 mixed-race infants.

^cIncludes TBW by deuterium dilution, total body potassium counting and bone mineral content by DXA.

^d55 Caucasian, 7 African-American, 11 Hispanic and 3 Asian children.