Table 6. Regression coefficients (standard errors) of predictors of weight (boys).

Boys	Predictors	Regression coefficient	Standard error	95% CI Lower	95% CI Upper	t	p	Adjusted R2
Age:5	Height	1.11	0.14	0.83	1.39	8.03	<0.001	0.682
	Ann5000	0.36	0.14	0.08	0.64	2.60	0.013
7	Height	0.95	0.15	0.66	1.25	6.48	<0.001	0.648
	Ann5000	0.17	0.15	-0.13	0.46	1.14	0.262
9	Height	1.08	0.14	0.79	1.37	7.48	<0.001	0.693
	Ann5000	0.29	0.14	0.00	0.58	2.02	0.049
11	Height	1.25	0.10	1.05	1.44	12.68	<0.001	0.820
	Ann5000	0.46	0.10	0.26	0.66	4.68	<0.001
13	Height	1.39	0.13	1.14	1.64	11.07	<0.001	0.787
	Ann5000	0.64	0.13	0.39	0.90	5.11	<0.001
15	Height	0.64	0.22	0.19	1.08	2.87	0.006	0.433
	Ann5000	-0.05	0.22	-0.50	0.39	-0.24	0.813
17	Height	0.26	0.20	-0.14	0.66	1.31	0.198	0.426
	Ann5000	-0.45	0.20	-0.85	-0.05	-2.27	0.028

Ann5000: Annual mean effective day length at 5000 lux