Table 1.

Age-specific incidence rates of CRC cross-tabulated by period in Taiwan from 1984 to 2013 to derive the birth-cohort-specific rates in the diagonal matrix

		Period
		1984–1988	1989–1993	1994–1998	1999–2003	2004–2008	2009–2013
	30–34	3.7	4.5	5.2	6.0	6.9	7.9
	35–49	6.0	7.5	8.1	9.7	11.5	14.6
	40–44	9.1	12.0	14.8	16.9	19.1	23.2
	45–49	16.4	19.9	23.9	29.8	33.6	40.8
	50–54	25.8	33.3	41.9	47.8	59.1	72.2
Age	55–59	39.2	50.9	67.1	77.0	91.9	111.5
	60–64	55.9	76.6	101.2	120.5	138.8	161.5
	65–69	72.1	99.4	141.2	174.1	194.7	224.1
	70–74	88.9	135.6	178.0	226.7	255.9	274.5
	75–79	77.6	152.0	216.8	276.0	318.4	357.6
	80–84	74.8	111.6	224.1	299.0	358.3	406.4

Per 100 000 person-years, crude rate.

The numbers on the diagonal indicate the incidence rates with age for a specific birth cohort; e.g. the cells in shadow indicate the incidence rates of the population bore during the period of 1947–51.