Table 2.

Annual Percent Change in the Age-Standardized Incidence Rate of Female Breast Cancer in the City of Goiânia, Goiás, Brazil between 1988 and 2012 According to Age Group

Age Group (years)	Trend 1 (Years)	APC^*	(95%CI)	p-value	Trend 2 (Years)	APC^*	(95%CI)	p-value
25-29	1988-2008	4.6^	(1.6 – 7.7)	0.001	2008-2012	-19.5	(- 40.2 – 8.3)	0.1
30-34	1988-2012	3.3^	(1.7 – 5)	0.001	-	-	-	-
35-39	1988-2006	4.7^	(2.4 – 7.1)	0.001	2006-2012	-8.3	(- 16.3 – 0.5)	0.1
40-44	1988-2003	6.2^	(3.3 – 9.2)	0.001	2003-2012	-3.4	(- 7.1 – 0.4)	0.1
45-49	1988-2012	2^	(1 – 3.3)	0.0001	-	-	-	-
50-54	1988-2003	7.1^	(4.5 – 9.8)	0.0001	2003-2012	-4.6	(- 7.7 – 1.4)	0.001
55-59	1988-2003	7.1^	(4.2 – 10)	0.0001	2003-2012	-3.6	(- 7.1 – 0.1)	0.1
60-64	1988-2012	2.7^	(1.2 – 4.3)	0.0001	-	-	-	-
65-69	1988-2012	4^	(2.3 – 5.7)	0.001	-	-	-	-
70-74	1988-2012	0.5	(-0.7 – 1.7)	0.4	-	-	-	-
75-79	1988-2007	5.8^	(3.8 – 7.9)	0.001	2007-2012	-13.6	(- 21.5 – -5.0)	0.0001
≥ 80	1988-2012	0.9	(-0.9 – 2.8)	0.3	-	-	-	-

^Significance, p < 0.05; *, Annual Percent Change (APC); * Incidence rate per 100,000 women; CI, Confidence interval.