Parental socioeconomic position and development of overweight in adolescence: longitudinal study of Danish adolescents

Table 4 Multilevel linear regression analysis (β-values, 95% CI) of the association between parental socioeconomic position and overall change in BMI from baseline in 1996 to follow-up in 2003 by gender (n = 1656).

Socioeconomic position (highest of the parents)	n	%	Multilevel analysis, two level model β*	p-value**	95% CI
Female	1025			0.007
Unemployed	60	9	-0.54		-1.29; 0.21
Under education	79	9	0.55		-0.13; 1.23
Non-skilled manual worker	15	2	0.70		-0.66; 2.05
Skilled manual worker	101	9	1.04		0.42; 1.67
White-collar group 3	204	19	0.19		-0.33; 0.70
White-collar group 2	267	24	0.21		-0.28; 0.69
White-collar group 1/ref.group	181	17	0.00		-
Self-employed	118	13	-0.02		-0.61; 0.58
Male	631			0.94
Unemployed	150	8	-0.14		-0.10; 0.73
Non-skilled manual worker	168	9	0.39		-0.39; 1.17
Under education	38	2	-0.42		-2.31; 1.47
Skilled manual worker	182	10	0.14		-0.58; 0.87
White-collar group 3	343	19	0.23		-0.36; 0.81
White-collar group 2	412	23	0.10		-0.43; 0.63
White-collar group 1/ref.group	270	15	0.00		-
Self-employed	218	12	-0.05		-0.69; 0.59

*Adjusted for school physician and school cluster effects.
**P-value for a Likelihood Ratio test of the overall effect of socioeconomic position on overweight.

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