Table 3. Age trends in obesity prevalence by birth cohort (1971-2006) (% (standard error)).

	2-9 y		10-19 y		20 – 29 y		30 - 39 y		40 - 49 y		50 - 59 y		60 - 69 y		70 - 79 y
1996 – 2005	11.6%	(0.7%)
1986 – 1995	13.8%	(0.9%)	18.3%	(0.8%)
1976 – 1985	12.2%	(1.2%)	14.8%	(0.6%)	23.3%	(1.4%)
1966 – 1975	5.7%	(0.4%)	9.5%	(0.8%)	21.6%	(1.3%)	29.3%	(1.4%)
1956 – 1965	5.6%	(1.1%)	5.7%	(0.4%)	11.2%	(1.0%)	26.7%	(1.2%)	36.1%	(1.2%)
1946 – 1955			7.0%	(1.5%)	8.6%	(0.5%)	19.6%	(1.4%)	29.9%	(1.6%)	36.8%	(1.5%)
1936 – 1945					9.1%	(1.5%)	14.3%	(0.7%)	20.8%	(1.2%)	35.8%	(2.0%)	39.3%	(1.3%)
1926 – 1935							13.6%	(1.8%)	16.5%	(0.9%)	26.6%	(1.6%)	33.7%	(1.1%)	31.2%	(1.5%)