Table 4. Regression coefficients (standard errors) of predictors of height (boys).

Boys	Predictors	Regression coefficient	Standard error	95% CI Lower	95% CI Upper	t	p	Adjusted R2
Age:5	Weight	0.53	0.07	0.40	0.66	8.03	<0.001	0.836
	Ann5000	-0.53	0.07	-0.66	-0.39	-7.94	<0.001
7	Weight	0.51	0.08	0.35	0.66	6.48	<0.001	0.803
	Ann5000	-0.51	0.08	-0.67	-0.35	-6.50	<0.001
9	Weight	0.51	0.07	0.38	0.65	7.48	<0.001	0.842
	Ann5000	-0.52	0.07	-0.66	-0.39	-7.62	<0.001
11	Weight	0.63	0.05	0.53	0.73	12.68	<0.001	0.898
	Ann5000	-0.46	0.05	-0.56	-0.36	-9.38	<0.001
13	Weight	0.53	0.05	0.43	0.62	11.07	<0.001	0.906
	Ann5000	-0.57	0.05	-0.66	-0.47	-11.96	<0.001
15	Weight	0.24	0.08	0.07	0.41	2.87	0.006	0.769
	Ann5000	-0.72	0.08	-0.89	-0.55	-8.53	<0.001
17	Weight	0.14	0.11	-0.08	0.36	1.31	0.198	0.675
	Ann5000	-0.74	0.11	-0.96	-0.52	-6.81	<0.001

Ann5000: Annual mean effective day length at 5000 lux