Table 4

Multivariate analysis of health behaviours

	Junk food consumption		Physical activity		Risk behaviours		Time spent on screen		Never having breakfast
	B	95% CI	B	95% CI	B	95% CI	B	95% CI	OR	95% CI
Sex
Boys	Ref		Ref		Ref		Ref		Ref
Girls	0.53	−0.12 to 1.18	*−4.74*	−5.61 to −3.86	2.19	1.37 to 3.0	−0.23	−0.3 to 0.16	0.99	0.69 to 1.41
Age	−0.3	−0.4 to −0.21	0.07	−0.09 to 0.24	0.03	−0.12 to 0.19	0.09	0.08 to 0.1	1.14	1.08 to 1.21
Maternal education
Primary	−4.64	−6.07 to −0.21	−0.03	−1.99 to 1.92	−1.5	−3.13 to 0.13	0.3	0.17 to 0.43	1.34	0.63 to 2.84
Secondary	−2.25	−3.37 to −1.13	−0.92	−2.51 to 0.65	−1.96	−3.4 to −0.52	0.26	0.15 to 0.36	1.2	0.6 to 2.39
University degree	Ref		Ref		Ref		Ref		Ref
Survey
2006	Ref		Ref		Ref		Ref		Ref
2010–2012	0.89	−0.27 to 2.06	−1.32	−3.16 to 0.5	0.78	−0.76 to 2.34	−0.72	−0.84 to −0.59	0.79	0.32 to 1.95
Employed
Employed	Ref		Ref		Ref		Ref		Ref
Unemployed	0.4	−1.45 to 2.27	−1.87	−4.1 to 0.36	0.18	−1.85 to 2.22	0.003	−0.13 to 0.14	2.09	1.12 to 3.88
Family type
Biparental	Ref		Ref		Ref		Ref		Ref
Monoparental	−0.89	−2.92 to 1.13	1.71	−0.53 to 3.98	−4.73	−7.33 to −2.14	0.08	−0.08 to 0.25	0.79	0.32 to 1.91
Origin
Native	Ref		Ref		Ref		Ref		Ref
Immigrant	−3.93	−5.82 to −2.04	−0.18	−2.6 to 2.22	1.7	−0.33 to 3.73	0.12	−0.02 to 0.27	1.19	0.53 to 2.64
Interaction terms
Primary education by survey	2.85	0.83 to 4.88	−1.77	−4.7 to 1.16	−0.17	−2.64 to 2.3	0.14	−0.11 to 0.4	2.09	0.63 to 6.93
Secondary education by survey	1.22	−0.22 to 2.67	0.08	−2.05 to 2.3	0.87	−1.04 to 2.78	0.10	−0.04 to 0.26	1.92	0.71 to 5.23
Employment by survey									0.33	0.13 to 0.8
Origin by survey							0.23	0.002 to 0.45	1.05	0.37 to 2.94
Family type by survey	1.82	−0.55 to 4.2	−1.85	−4.78 to 1.08	2.77	−0.35 to 5.9	−0.005	−0.26 to 0.25	1.46	0.37 to 4.45

ESCA 2006 and 2010–2012 (weighted data).
Statistically significant coefficients are shown in italics. All models are adjusted by the remaining variables in the equation. Source: Catalan Health Department, Catalan Health Interview Survey.
B, beta.