Table 2

Multilevel association among educational level and injury mortality (Poisson regression), individual and neighborhood effects by cause of death and age group; Barcelona 1992–98

	Traffic injuries			Falls			Drug overdoses			Suicides			Total injury mortality
	No	RR	95% CI	No	RR	95% CI	No	RR	95% CI	No	RR	95% CI	No	RR	95% CI
*35–49 age group.
RR, relative risk; 95% CI, 95% confidence interval.
Males
20–34 age group
No schooling	11	4.26	2.20 to 8.25	1	5.93	0.69 to 50.82	24	11.68	7.17 to 19.02	4	2.37	0.86 to 6.54	48	5.41	3.95 to 7.41
Primary studies	146	2.76	2.09 to 3.65	24	6.47	2.46 to 16.97	296	6.99	5.19 to 9.42	71	1.87	1.31 to 2.66	588	3.17	2.73 to 3.68
Secondary and more	75	1		5	1		52	1		54	1		257	1
35–74 age group
No schooling	37	1.08	0.74 to 1.58	30	1.08	0.74 to 1.58	14	3.88*	1.91 to 7.89	65	1.89	1.38 to 2.60	219	1.65	1.38 to 1.96
Primary studies	105	0.95	0.72 to 1.08	41	0.98	0.62 to 1.56	60	2.20*	1.38 to 3.51	113	1.04	0.79 to 1.37	439	1.08	0.93 to 1.24
Secondary and more	92	1		33	1		28	1*		91	1		328	1
≥75 age group
No schooling	45	2.57	1.38 to 4.76	61	1.31	0.85 to 2.02				45	3.34	1.68 to 6.62	234	1.64	1.29 to 2.07
Primary studies	36	1.54	0.82 to 2.91	67	1.10	0.72 to 1.68				31	1.73	0.85 to 3.52	205	1.09	0.96 to 1.38
Secondary and more	13	1		32	1					10	1		101	1

Neighbourhood men unemployment		–			1.0504	1.0077 to 1.0950		–			–			1.0474	1.0261 to 1.0692
Neighbourhood men in jail		–			–			1.0011	1.0008 to 1.0014		–			–

		Variability	p		Variability	p		Variability	p		Variability	p		Variability	p
Neighbourhood variability		0.0005	0.5		0.0004	0.462		0.0326	0.089		0.0005	>0.5		0.016	0.001

Females
20–34 age group
No schooling	2	4.24	0.98 to 18.27	2	14.62	2.83 to 75.46	3	4.55	1.34 to 15.45	2	3.18	0.75 to 13.46	10	4.38	2.27 to 8.45
Primary studies	25	2.49	1.36 to 4.56	5	1.75	0.51 to 6.06	56	5.23	3.15 to 8.69	16	1.19	0.63 to 2.25	116	2.48	1.87 to 3.29
Secondary and more	18	1		5	1		18	1		24	1		76	1
35–74 age group
No schooling	26	1.19	0.70 to 2.03	25	3.87	1.74 to 8.61	8	3.03*	0.90 to 10.18	39	1.16	0.75 to 1.80	138	1.64	1.26 to 2.21
Primary studies	43	0.78	0.48 to 1.25	26	1.66	0.75 to 3.66	19	1.69*	0.73 to 3.94	65	0.80	0.54 to 1.18	197	0.97	0.76 to 1.23
Secondary and more	29	1		8	1		7	1		42	1		111	1
≥75 age group
No schooling	34	0.47	0.25 to 0.87	229	1.59	1.06 to 2.39				27	5.20	0.71 to 38.25	435	1.22	0.94 to 1.58
Primary studies	23	0.37	0.19 to 0.71	107	0.87	0.57 to 1.33				22	4.90	0.66 to 36.34	256	0.75	0.57 to 0.98
Secondary and more	14	1		27	1					1	1		68	1

Neighbourhood men unemployment		–			1.0296	0.9930 to 1.0675		–			–			1.0463	1.0186 to 1.0748
Neighbourhood men in jail		–			–			1.0011	1.0004 to 1.0018		–			–

		Variability	p		Variability	p		Variability	p		Variability	p		Variability	p
Neighbourhood variability		0.0003	0.223		0.0122	0.116		0.2952	0.001		0.0004	>0.5		0.027	<0.001