Table 1.

Estimates of Relative Risk (RR) and confidence interval with 95% reliability of age, birth cohort and period, in the Metropolitan and the Serrana regions of Rio de Janeiro

Variables	Serrana region			Metropolitan region
	N	RR	95% CI	N	RR	95% CI
Age
20 to 24	10	Reference		126	Reference
25 to 29	9	0.49	0.28 - 0.88	139	1.13	1.09 - 1.18
30 to 34	15	0.64	0.34 - 1.20	207	1.73	1.65 - 1.81
35 to 39	19	1.05	0.52 - 2.11	240	2.07	1.97 - 2.17
40 to 44	27	1.95	0.95 - 4.00	353	3.15	3.00 - 3.31
45 to 49	28	2.51	1.20 - 5.25	464	4.45	4.23 - 4.68
50 to 54	44	6.58	3.08 - 14.08	588	6.47	6.15 - 6.81
55 to 59	46	10.37	4.79 - 22.44	615	8.25	7.84 - 8.69
60 to 64	61	18.87	8.67 - 41.07	719	11.96	11.36 - 12.60
65 to 69	63	27.7	12.65 - 60.66	695	14.99	14.23 - 15.80
70 to 74	49	27.13	12.33 - 59.72	627	17.60	16.70 - 18.54
75 to 79	41	33.63	15.24 - 74.22	549	23.78	22.55 - 25.07
Birth cohort
1920-24	8	0.58	0.44 - 0.78	124	0.88	0.86 - 0.90
1925-29	31	0.80	0.67 - 0.94	374	1.03	1.02 - 1.05
1930-34	55	0.70	0.61 - 0.80	646	0.94	0.94 - 0.95
1935-39	48	0.59	0.52 - 0.52	685	0.99	0.98 - 1.00
1940-44	52	0.68	0.61 - 0.75	648	Reference
1945-49	58	Reference		625	1.04	1.03 - 1.05
1950-54	35	0.81	0.72 - 0.93	603	1.06	1.04 - 1.07
1955-59	34	1.19	1.01 - 1.41	497	0.97	0.95 - 0.98
1960-64	32	2.00	1.53 - 2.60	370	0.93	0.91 - 0.94
1965-69	21	1.67	1.20 - 2.32	265	0.90	0.88 - 0.92
1970-74	14	2.23	1.46 - 3.42	195	0.92	0.89 - 0.95
1975-79	12	2.72	1.54 - 4.81	152	0.86	0.83 - 0.89
1980-84	7	4.07	1.83 - 9.04	96	0.90	0.86 - 0.95
1985-89	5	4.17	1.79 - 9.74	42	0.95	0.89 - 1.02
Period
1996 to 2000	102	Reference		1554	Reference
2001 to 2005	129	0.98	0.92 - 1.03	1718	0.98	0.97 - 0.98
2006 to 2010	181	1	1	2050	1	1