Table 4

The regression coefficient from the linear spline regression of prevalence of overweight for boys, girls and all children born between 1970 and 2006

Years of birth	Boys			Girls			Boys and girls combined
Years of birth	Regression coefficient	SE	p Value	Regression coefficient	SE	p Value	Regression coefficient	SE	p Value
1970–1977	−0.26	0.11	0.036	−0.27	0.11	0.025	−0.27	0.09	0.008
1977–1984	0.15	0.10	0.133	0.45	0.10	<0.001	0.30	0.08	0.001
1984–1991	1.02	0.10	<0.001	0.41	0.09	<0.001	0.73	0.08	<0.001
1991–1998	0.17	0.09	0.092	0.15	0.09	0.137	0.16	0.08	0.054
1998–2006	−0.43	0.09	<0.001	−0.34	0.09	0.002	−0.39	0.08	<0.001
Constant	520.35			549.85			533.50