Table 3.

Complex measures of inequality in health-related behaviours among Brazilian adolescents (Pesquisa Nacional da Saude do Escolar surveys 2009, 2012 and 2015)

Quintiles of wealth index (1=poorest; 5=wealthiest)	Slope index of inequality (SII)				Concentration index of inequality (CIX)
Indicators	2009	2012	2015	P value*	2009	2012	2015	P value*
Irregular fruit consumption	−13.68	−9.01	−8.88	0.015	−2.82	−2.31	−2.26	0.267
Irregular vegetable consumption	−19.02	−17.59	−17.92	0.535	−4.30	−4.48	−5.18	0.165
Irregular bean consumption	9.95	11.25	7.33	0.434	6.48	3.47	2.22	<0.001
Regular soft drink consumption	16.55	10.49	3.89	<0.001	6.94	5.19	2.90	<0.001
Irregular recreational physical activity	−8.66	−9.47	−7.90	0.745	−1.70	−1.91	−1.71	0.837
Alcohol use (once in the last month)	9.69	0.68	0.06	0.000	4.79	1.71	1.19	0.004
Tobacco use (once in the last month)	−1.68	−2.80	−3.15	0.125	−5.68	−6.32	−8.69	0.290
Drug use (once in the last month)	0.34	0.46	−0.98	0.048	−0.08	4.47	−4.61	0.428
Unsafe sex (in the last sexual intercourse)	−9.67	−6.88	−13.28	0.498	−6.52	−5.44	−6.56	0.914
Domestic violence (once in the last month)	−1.84	−5.24	−6.92	<0.001	−2.72	−7.02	−6.57	0.014
Involvement in gun fights (once in the last month)	−0.76	−1.90	−3.30	0.002	−2.82	−4.42	−8.79	0.029
Bullying victimisation (twice or more in the last month)	0.83	−0.20	−6.60	<0.001	0.56	0.59	−4.41	<0.001