Table 2.

RRs of prostate cancer prevalence due to age, period, and birth cohort effects.

Factor	Prevalence
	RR (95% CI)	p -Value
Age (years)
20–24	0.020 (0.019, 0.020)	< 0.001
25–29	0.025 (0.025, 0.026)	< 0.001
30–34	0.036 (0.035, 0.036)	< 0.001
35–39	0.051 (0.051, 0.052)	< 0.001
40–44	0.152 (0.151, 0.153)	< 0.001
45–49	0.501 (0.499, 0.504)	< 0.001
50–54	1.547 (1.541, 1.554)	< 0.001
55–59	3.357 (3.346, 3.369)	< 0.001
60–64	6.233 (6.216, 6.250)	< 0.001
65–69	8.736 (8.716, 8.756)	< 0.001
70–74	9.990 (9.970, 10.010)	< 0.001
75–79	9.969 (9.949, 9.989)	< 0.001
80–84	7.791 (7.773, 7.809)	< 0.001
85–89	6.079 (6.061, 6.097)	< 0.001
90–94	3.641 (3.625, 3.656)	< 0.001
95 plus	2.973 (2.953, 2.994)	< 0.001
Period
1990	0.513 (0.512, 0.514)	< 0.001
1995	0.718 (0.717, 0.719)	< 0.001
2000	0.934 (0.934, 0.935)	< 0.001
2005	1.210 (1.209, 1.211)	< 0.001
2010	1.429 (1.428, 1.431)	< 0.001
2015	1.680 (1.677, 1.684)	< 0.001
Birth cohort
1895–1899	10.089 (9.873, 10.310)	< 0.001
1900–1904	6.976 (6.904, 7.049)	< 0.001
1905–1909	5.287 (5.255, 5.319)	< 0.001
1910–1914	4.255 (4.235, 4.275)	< 0.001
1915–1919	3.306 (3.293, 3.319)	< 0.001
1920–1924	2.554 (2.546, 2.563)	< 0.001
1925–1929	1.971 (1.965, 1.978)	< 0.001
1930–1934	1.508 (1.503, 1.512)	< 0.001
1935–1939	1.197 (1.193, 1.201)	< 0.001
1940–1944	1.018 (1.014, 1.021)	< 0.001
1945–1949	0.867 (0.863, 0.870)	< 0.001
1950–1954	0.742 (0.739, 0.746)	< 0.001
1955–1959	0.626 (0.623, 0.630)	< 0.001
1960–1964	0.540 (0.537, 0.543)	< 0.001
1965–1969	0.420 (0.417, 0.422)	< 0.001
1970–1974	0.338 (0.335, 0.341)	< 0.001
1975–1979	0.298 (0.295, 0.301)	< 0.001
1980–1984	0.254 (0.251, 0.258)	< 0.001
1985–1989	0.237 (0.233, 0.241)	< 0.001
1990–1994	0.205 (0.201, 0.210)	< 0.001
1995–1999	0.182 (0.175, 0.189)	< 0.001

RR, relative risk.