Table 4

Second-level variances (σ_j²), proportional change in variances and the median rate ratio, for each of these models: (1) empty model, (2) only the individual variables, and (3) individual variables and neighbourhood deprivation

	IDUs				Homosexuals/bisexuals				Heterosexuals				Total
	r_j²	p Value	PCV	MRR	r_j²	p Value	PCV	MRR	r_j²	p Value	PCV	MRR	r_j²	p Value	PCV	MRR
HAART, highly active antiretroviral therapy; IDUs, injecting drug users; MRR, median rate ratio; PCV, proportional change in variances.
Barcelona, men and women, in the pre-HAART (1991–1996) and post-HAART (1997–2001) periods.
Pre-HAART (1991–6)
Men
Model 1 (empty)	0.36	<0.001		1.77	0.38	<0.001		1.8	0.17	0.027		1.49	0.25	<0.001		1.61
Model 2 (individual variables)	0.28	<0.001	20.67	1.66	0.42	<0.001	−11.87	1.86	0.19	0.004	−14.37	1.53	0.24	<0.001	4.8	1.59
Model 3 (community-level variable)	0.04	0.062	88.06	1.22	0.31	<0.001	18.76	1.7	<0.01	>0.5	100	1	0.06	<0.001	76.38	1.26

Women
Model 1 (empty)	0.17	0.144		1.48					0.56	<0.001		2.04	0.37	<0.001		1.79
Model 2 (individual variables)	0.31	<0.001	−84.3	1.7					0.85	<0.001	−50.49	2.4	0.45	<0.001	−20.77	1.9
Model 3 (community-level variable)	<0.01	>0.5	99.99	1					<0.01	0.003	100	1	0.13	<0.001	65.81	1.41

Post-HAART (1997–2001)
Men
Model 1 (empty)	0.57	0.001		2.06	0.48	0.025		1.93	1.04	<0.001		2.64	0.77	<0.001		2.31
Model 2 (individual variables)	0.47	<0.001	17.76	1.92	0.89	<0.001	−85.37	2.45	1.05	<0.001	−0.87	2.65	0.75	<0.001	2.6	2.28
Model 3 (community-level variable)	<0.01	>0.5	100	1	<0.01	0.269	100	1	<0.01	0.459	100	1	0.07	0.058	91.07	1.28

Women
Model 1 (empty)	0.83	0.007		2.38					<0.01	>0.5		1	0.61	0.003		2.1
Model 2 (individual variables)	0.82	<0.001	0.88	2.37					<0.01	>0.5	100	1	0.61	<0.001	−1.14	2.11
Model 3 (community-level variable)	<0.01	>0.5	100	1					<0.01	0.251	100	1	<0.01	>0.5	100	1