Table 1.

Six nationally representative datasets of body mass indices in childhood

Country	Year	Description	Males			Females		Reference
			Age range	Sample size		Age range	Sample size
Brazil	1989	Second national anthropometric survey	2-25	15 947		2-25	15 859	14
Great Britain	1978-93	Data pooled from five national growth surveys	0-23	16 491		0-23	15 731	15
Hong Kong	1993	National growth survey	0-18	11 797		0-18	12 168	16
Netherlands	1980	Third nationwide growth survey	0-20	21 521		0-20	20 245	17
Singapore	1993	School health service survey	6-19	17 356		6-20	16 616	18
United States	1963-80	Data pooled from four national surveys	2-20	14 764		2-20	14 232	19